nghiên cứu tổng hợp và chế tạo sơn ngụy trang hấp thụ sóng Điện từ radar...
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AN DN
Urjlg
AN DN ........................................................................................................ :
EJLH AN NN I HCR P NHPCU UU ................................... 5
EJLH AN NN MLG .............................................................................. 2
EJLH AN NN HLH P, UH........................................................ 7
AR ........................................................................................................ :;
NHLG :. ULG ZRJL PPU DCR H[ UH^LG CL U
P NR U]N H[ UH^LG CL U. .......................................... :>
:.:. NNDOCLGRSLDCR ELGNHUOPUDCR
NOA[O^CUBH[UH^LGCLU]JEJ]. .................................... :>
:.:.:. Pt dcu tl hjo cl ............................................................................. :5
:.:.:.:. Pt dcu podyab phc trl vc nht l el cl ............................... :5
:.:.:.=.Pt dcu podyab el cl v podyab el cl nhj `bronbl............. :2
:.:.:.>.Pt dcu cl ac................................................................................ =2
:.:.:.5.Nht cl dy rl.................................................................................. =7
:.:.=. Pt dcu tl hjo t................................................................................. =8
:.:.=.:. Gcc thcu nn doc vt dcu t............................................................. =8
:.:.=.=. Nu trn tclh thv tlh nht nj vt dcu `brct t.............................. =3:.:.=.>. Nn phlg php nhto vt dcu telg ht................................... >:
:.:.=.5. Ih llg hp th slg cl t nj nn vt dcu t............................ >5
:.=. NRU]NH[UH^LGCLUNJPUDCR ................... >5
:.=.:.Nu trn hp th v trct tcu llg dlg slg cl t mlg phlg
php gcjo thoj, tl x...................................................................................... >5
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:.=.=.Nu trn hp thslg cl tto anh nlg hlg ........................... >7
:.=.>.Nu trn hp thslg cl telg al nhl ^jdcsmury ...................... 5;
:.=.5.Nu trn hp thslg cl tj dp (nu trn Fjuajll).................... 5>
:.>.N^DUHRSUNHUOPUDCRH[UH^LGCLU
GCAUHCRIHLLG[HUHCLNJ]JEJ] .............................. 55
:.>.:.Lguyl d hot lg nj c rjejr v sphl xslg cl ttrl m
at ica doc. .................................................................................................... 55
:.>.=.N sd thuyt nj vt dcu hp thslg cl t................................. 58
:.>.>.Lguyl tn nhto vt dcu hp thslg cl t................................. 53
:.5.PUDCRH[UH^LGCLU]JEJ] ................................... 2;
NHLG =6 [HL UHN LGHCA ....................................................... 25
=.:.ULGH[[ODSAB ELCLNHJ@B]ONBL ......................... 25
=.=.NHUO[CGABLUUMLG[HLG[H[^OD-GBD ............ 20
=.>.NHUOH^LH[UHPC^LG............................................... 0;
=.5.[HLG[H[UHNLGHCA ......................................................... 0;
=.5.:.Uhct mv ho nht selg thn lghca ............................................ 0:
=.5.=.[hlg php phl tnh alg phj xn lh thlg stl hjo vc slg.. 0:
=.5.>.[hlg php o el cl nj podyab ............................................. 05
=.5.5.Nn phlg php xn lh tlh nht tnj spclbd ............................... 07
=.5.2.Nn phlg php xn lh tlh nht n d nj alg sl ph............. 7:
NHLG >6 IU ZRP UHO DRL ............................................... 7=
>.:.CRNH[ODSABELCLNHJ@B]ONBL ........................... 7=
>.:.:.lh hlg nj cu icl phl lg l trlg hp v nu trn nj
podyab ............................................................................................................. 7=
>.:.=.Nu trn nj podymblzydbl`bronbl ........................................................ 78
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>.:.>.Ulh nht el cl v lh hlg nj ha dlg cot phj tp l tlh
nht el cl nj podyab ................................................................................ 32
>.=.CRNH[CGABLUU..................................................................... :;;
>.=.:.Nu trn tclh th elg spclbd nj pcgablt t n cu nh mlg
phlg php sod gbd ................................................................................... :;;
>.=.=.lh hlg nj nn nht phgcj hot lg mat (HMA) l inh
thn nj spclbd ............................................................................................. :;2
>.=.>.lh hlg nj nn thlh phl l tlh nht tnj vt dcu ............. ::=
>.>.H^LH[UHPC^LG............................................................... ::2
>.>.:.Ulh nht n d nj dp alg phhp thvc slg ............................. ::2
>.>.=.lh hlg nj ey v s dp ph l ih llg hp th nj vt
dcu...... ........................................................................................................... ::7
>.>.>.lh hlg nj ha dlg cot phj tp trolg [Mz@rn l ihllg hp
thnj vt dcu .............................................................................................. :=>
IU DRL .................................................................................................. :>;
NN NLG U]LH DCL ZRJL L DRL L............................... :>=
UC DCR UHJA IHO .......................................................................... :>>
[HDN ..................................................................................................... :5:
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EJLH AN NN I HCR P NHPCU UU
Mz6 Mblzjdebhyt
N[6 [odyab el cl
B[6 Lhj bpoxy
BW6 ^lg cl t
BWJ6 Hp thslg cl t
@rn6 @bronbl
G6 Gjuss
G[N6 ^n i tha thu gbd
Hn6 Hste
HMA6 Hot lg mat
HBN6 hyeroxy bthyd xbdudozo
C]6 [hhlg lgoc
Ar6 Hsaoabl na lg t
As6 Hsaoablt tmo hjOb6 Obrstbe
[J6 [odyjact dlg
[Mz@rn6 [odymblzydbl`bronbl
]JA6 Pt dcu hp thslg cl trjejr
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]J^6 Nu trn hp thslg cl trjejr
^BA6 lh nhp hcl vc cl tqut
X-rjy6 [hlhcu xtcj X
EJLH AN NN MLG
Urjlg
Mlg :.:6 Nn ec mlg tl da vcn nj c rjejr......................................... :>
Mlg :.=6 lh hlg nj ha dlg grjphct l el nj noaposctb [B :2
Mlg :.>6 el cl nj nn vt dcu v n v hu n................................ :7
Mlg :.56 lh hlg nht phj tp l el cl nj podyjnbtydbl. .......... :8
Mlg :.26 Hsna lg trclg nj podyab nhj `bronbl ......................... ==
Mlg :.06 It quiho st tlh nht tnj podyab nhj `bronbl ................. =>
Mlg :.76 Ulh nht el cl nj nn doc podyab nhj `bronbl ................... =5
Mlg :.86 Ulh nht tl hjo yu tcl ac nj podyab el phj tp cot. .... =2
Mlg :.36 ttha, thlg stv lhct Nurcb nj at s`brct v vt
dcu st t. ....................................................................................................... >:
Mlg :.:;6 n trlg nj nn ta njo su hp thslg cl t..................... >0
Mlg :.::6 lh hlg nu trn v ha dlg N l ihllg hp thvc slg
nj vt dcu njo su lboprbl. ............................................................................ 5=
Mlg >.:6 lh hlg nj xn tn l tlh nht sl pha podyab ................ 7>
Mlg >.=6 lh hlg nj tdaod l tlh nht sl pha .......................... 75
Mlg >.>6 lh hlg nj lhct v thc gcjl trlg hp l phl tihc v
hcu sut sl pha .......................................................................................... 77
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0
Mlg >.56 lh hlg nj ha dlg cot phj tp l el cl nj [Mz@rn.
......................................................................................................................... 38
Mlg >.26 Ha dlg ica doc trolg au `brct6 Al;.22Vl;.52@b=O5. ............. :;;
Mlg >.06 lh hlg nj nn nht HMA l inh thn tclh th`brct. ... :;2
Mlg >.76 Udinh thn tclh th`brct trolg hphl tl (eulg ac btjlod)
....................................................................................................................... :;8
Mlg >.86 Nn gc trthlg stnn au spclbd .......................................... ::5
Mlg >.36 Uhlh phl ihc dlg nj nn hsl hp thslg cl t6 ..... ::2
Mlg >.:;6 Ulh nht n d nj nn dp alg ph........................................ ::0
Mlg >.::6 lh hlg nj nhcu ey dp phl hshp thnn c nj
vt dcu. .......................................................................................................... :=;
Mlg >.:=6 lh hlg it nu alg phl ihllg hp thslg cl t
nj dp sl ph. ............................................................................................ :=>
Mlg >.:>6 H shp thv rlg ec hp th nj nn au sl n ha
dlg cot ihn lhju trolg ec X. ................................................................... :=8
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EJLH AN NN HLH P, UH
Urjlg
Hlh :.:6 ^mcl c , thbo tl snj vt dcu cl ac....................... =0
Hlh :.=6 Nu trn hp thslg cl t to anh nlg hlg nj nn hp
nht phl nn t .............................................................................................. >8
Hlh :.>6 Anh nlg hlg ejo lg ............................................................ >8
Hlh :.56 Anh nlg hlg hjc nhcu ............................................................ >3
Hlh :.26 It nu al nhl ^jdcsmury ............................................................ 5:
Hlh :.06 Nu trn hp thj dp ................................................................... 5>
Hlh :.86Zu trlh truyl (j) v phl x(m) slg rjejr............................... 52
Hlh :.76 It nu j dp elg nhp ll trl mat...................................... 55
Hlh :.36 Gn phl xv sphl xBA trl mat vt dcu ...................... 50
Hlh :.:;6 cl, ttrlg nj slg cl ttn lg trl mat ica doc . 57
Hlh :.::6 Hcl tlg phl nn nj vt dcu ec tn elg nj cl trlg 57
Hlh :.:=6 Gn pht xnj tcj lhcu xtc mnlh vt dcu ......................... 58
Hlh :.:>6 cl, ttrlg nj slg cl ttrl mat vt dcu .................. 53
Hlh =.:6 ^truyl el, phl xv truyl quj nj lh slg (j) v slg cl
t(m) quj vt dcu ............................................................................................ 0=
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Hlh =.=6 Nn thlg sthu n nj phlg php phl tnh alg phj ....... 0=
Hlh =.>6 [hlg php o hsphl hc v hstruyl quj thbo = hlg.
......................................................................................................................... 05
Hlh =.56 Lguyl tn o cl trnj alg vt dcu thbo phlg php EN.. 05
Hlh =.26 thvbnt tlg trV v nn thlg sthlh phl ], X .............. 00
Hlh =.06 lg nolg ttrxn lh nn thlg snj vt dcu t............... 08
Hlh=.7. ^tl lhcu xX tnn at phlg tclh th. ................................. 7;
Hlh >.:6 [hl tihc nj podyab n tlg hp tc nn lhct ihn lhju
......................................................................................................................... 77
Hlh >. =6 [hC] nhul nj mblzjdebhyt ....................................................... 73
Hlh >.>6 [hC] nhul nj `bronbl ............................................................... 8;
Hlh >.56 [hhlg lgoc nj podyab ............................................................ 8:
Hlh >.2 (j)6 [h:HLA] nj [Mz@rn (6 ;:= ppa) ............................. 8>
Hlh >.2 (m)6 [h:HLA] nj [Mz@rn (6 >.325.=; ppa) ..................... 85
Hlh >.2 (n)6 [h:HLA] nj [Mz@rn (6 7.:8.; ppa) ......................... 80
Hlh >.06 [h:H-LA] nhul nj mblzjdebhyt ............................................. 87
Hlh >.76 [h:H-LA] nhul nj `bronbl ..................................................... 87
Hlh >.8 (j)6 [h:>N-LA] nj [Mz@rn ......................................................... 83
Hlh >.8 (m)6 [h:>N-LA] nj [Mz@rn (6 3;:2; ppa) .......................... 3:
Hlh >.36 [hnhul :>N-LA] nj mblzjdebhyt ............................................ 3=
Hlh >.:;6 [hnhul :>N-LA] nj `bronbl ................................................. 3=
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3
Hlh >.::6 It quphl tnh lhct nj [Mz@rn .............................................. 35
Hlh >.:=6 Nu trn nj [Mz@rn ..................................................................... 32
Hlh >.:>6 [hRPPcs nj [Mz@rn ............................................................ 30
Hlh >.:56 [hhlg lgoc nj podyab mcl tlh cot..................................... 37
Hlh >.:2. ^phthun nj ha dlg cot phj tp l tlh nht el cl nj
[Mz@rn ............................................................................................................. 33
Hlh >.:06 Nu trn nj [Mz@rn mcl tlh cot................................................. 33
Hlh >.:76 [hX-rjy nj Al;.22Vl;.52@b=O5................................................ :;=
Hlh >.:86 [hX-rjy nj Al;.22Vl;.52@b=O5ph2% Nu@b=O5................... :;>
Hlh >.:36 [hX-rjy nj Dc=@b=O5.Al;.22Vl ;.52@b=O5ph2% Nu@b=O5... :;5
Hlh >.=;6 lh ^BA nj nn au spclbd ..................................................... :;0
Hlh >.=:6 Gcl phl minh thn ht `brct n cu nhvc nn hnht
hot lg mat ihn lhju.......................................................................... :;7
Hlh >.==6 Gcl at phl minh thn ht `brct n cu nhvc nn
hnht hot lg mat ihn lhju............................................................. :;8
Hlh >.=>6 Udinh thn ht `brct phl tl trolg btjlod.......................... :;3
Hlh >.=56 lg ttr(j) v na lg t(m) nj Al;.22Vl;.52@b=O5........ ::>
Hlh >.=26 lg ttr(j) v na lg t(m) nj Al;.22Vl;.52@b=O5ph2%
Nu@b=O5......................................................................................................... ::>
Hlh >.=06 lg t tr (j) v na lg t (m) nj
Dc=@b=O5.Al;.22Vl;.52@b=O5ph2% Nu@b=O5.............................................. ::5
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:;
Hlh >.=76 It quo h s hp thslg cl tnn au sl trl n s
N[C:2 ............................................................................................................. :=;
Hlh >.=86 lh hlg nhcu ey dp phl hshp thvt dcu........... :=:
Hlh >.=36 It quo hshp thnj au sl trl n sN[C:2 ........... :=>
Hlh >.>;6 It quo hp thvc slg nj nn hsl ph trl n slhj
[Mz@rn mcl tlh cot ...................................................................................... :=7
A R
Nn ithut qul sv el s(nlg lghthlg tcl dcl dn, v tuyl,
el lg hlg ihlg, nh than tcu )selg llg dlg vc slg lgy
nlg pht trcl vc tn njo. Nn thct mthlg tcl ec lg hcl c thlg
da vcn trolg nn ec tl sGHz. Eo , vl lhca slg cl tv
gca thcu tn lg n hc nj nn mn xvc slgc vc ac trlg v
jlg n t rj rt np thct.
]jejr d phlg tcl trclh st hcl c selg n nhpht v thu lhl
tl hcu slg cl t. Nn c rjejrel lg v nhthan tcunhyu da
vcn trolg ec X (8:= GHz). Lgutrjlg slg cl trjejr gca thcu ih
llg pht hcl nj c phlg jlg d hlg lghcl nu n qujl ta
alh atrolg ithut qul s.
N lhcu phlg php trct tcu llg dlg slg cl tlgutrjlg
gca thcu spht hcl nj rjejr. Uuy lhcl, hlg lghcl nu selg nn
vt dcu hp thtrct tcu llg dlg slg cl tjlg d gcc php tc u
vpht trcl alh. Nn it qulghcl nu nlg m xn lh n nhhp
thllg dlg slg cl tnj nn vt dcu d hp thcl v hp tht. Pt
dcu tl hjo td nn vt dcu tlh hp ica @b t, nn phn njnmolyd @b, nn
hp nht `brct .v.v. Pt dcu tl hjo cl d nn nht n tlh nht tl hjo cl
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::
ac njo lh nn nht cl acphn hp, podyab el cl, nht cl dy rl
.v.v, lhlg nhyu trl n sgrjphct phc trl vc lhj tlg hp hon nn
podyab el cl podyjlcdcl, podypyrod. Pcn selg nlg lghljlo nhto
vt dcu hp thvc slg jlg n tp trulg lghcl nu lha tlg ihllg
hp thnj vt dcu. Pct Lja, vt dcu hp thslg cl tvl nhj n
lghcl nu nth, nhat sn snj Zul c lghcl nu nhto ta hp
thslg cl tnho at sit qumn u.
An tcu nj dul l d lghcl nu nhto sl phhp thslg cl
t rjejr trl n spodyab el cl nhj `bronbl (@rn) v spclbd `brct nho
ll ica doc, ll Jd v hp ica selg da vt dcu lgutrjlg lg thc p
elg nh to vt dcu hp thvc slg nhlg lhca slg cl t. thn
hcl an tcu trl, nn vl lghcl nu nj dul l n t rj lh sju6
Lghcl nu tlg qujl v slg cl t, n nhphl nn nj slg
cl ttrl mat ica doc9 n nh, nu trn v nn vt dcu hp th
slg cl t. Xn lh nu trn v vt dcu thnh hp selg nhto
hsl phhp thvc slg.
Lghcl nu nhto vt dcu hp thclvt dcu podyab el cl
v vt dcu cl dy rl. Nthd lghcl nu tlg hp v xn lh nu
trn nj podyab el cl nhj `bronbl9 tlh nht el cl nj
podyab v nn el xut podyab nhj `bronbl mcl tlh cot.
Lghcl nu phlg php nhto vt dcu hp tht- nn vt dcu t.
Urolg dul l, nhlg tc tp trulg lghcl nu selg phlg php
sod - gbd nh to nnvt dcu spclbd `brct tAlVl `brct v DcAlVl
`brct n inh thn trulg mlh 4:;a. Xn lh inh thn ht tclh
thv iho st lh hlg nj nn yu tl inh thn ht tclh th
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:=
spclbd9 iho st lh hlg nj thlh phl v t d thlh phl nn
oxct l tlh nht tnj vt dcu spclbd.
Nhto hsl phnho ll ica doc trl n sht `brct v podyab
el cl nhj `bronbl9 xn lh nn tlh nht n d nj dp alg ph
v iho st lh hlg nj nn nu ttrolg hsl l tlh nht nj
alg sl.
Xn lh ihllg hp thslg cl tnj dp sl phtrl ll Jd,
xn lh ey tc u nj alg ph9 iho st lh hlg nj
podyab el cl l ihllg hp thvc slgnj alg sl ph.
Lghcl nu nh to vt dcu hp th slg cl t ec vc slg t nn
podyab el cl nhj `bronbl v iho st lh hlg nj podyab nhj
`bronbl l ihllg hp thvc slgd at hlg ac nj dul l l ljy
nhj n nlg trlhlo nlg m.
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:>
NHLG:. ULG ZRJL P PU DCR H[ UH ^LG
CL U P NR U]N H[ UH ^LG CL U.
:.:. NN DOC LGRSL DCR ELG NH UO PU DCR
NOA[O^CUB H[ UH^LG CL U]JEJ].
c rjejr n nhn llg d tra pht v thu BW. Ac doc rjejr nhpht
v thu slg tc at, vc tl slht lh. Ec tl da vcn nj nn c rjejr
la trolg ec slg lgl tlg lg vc ec tl strolg iholg :::; GHz.Nn ec tl da vcn nj tlg doc c rjejr n nhcj thlh lhcu doc (mlg
:.:) lhlg trolg thn tnn j sc rjejr da vcn trolg nn ec tl X, Iu
v at st doc trolg ec Ij.
Mlg :.:6 Nn ecmlgtl da vcn nj c rjejr
Ul ec tl Ul s(GHz) Mn slg nhul
Ec Ij =7>8 8 aa
Ec I :8=7 : na
Ec Iu :=:8 = na
Ec X 8:= > na
Ec N 58 2 na
Ec ^ =5 :; na
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:5
Ec D := =; na
Nn lguyl dcu elg nh to vt dcu hp th slg cl t rjejr
(]JA) n phl thlh hjc lha nhlhthbo n nhhp th6
:.Pt dcu hp thslg cl tthbo n nhtl hjo cl6d nn vt
dcu n tlh nht tl hjo cl ac njo lh nn podyab el cl, nn
nht cl ac phn hp, nn nht cl dy rl .v.v.
=.Pt dcu hp thslg cl tthbo n nh tl hjo t6d nn vt
dcu t n t tha rclg njo lh nn hp ica st t, nn phn
njnmolyd st t, nn `brct tv gjrlbt t.v.v.
:.:.:. Pt dcu tl hjo cl
:.:.:.:.
Pt dcu podyab phc trl vc nht l el cl
^phc trl nn ht pcgablt el cl vo podyab, nht eo v nn doc
vt dcu ga to thlh elg phn hp gcj cl ac v el cl - nht cl
ac phn hp. Ihc phc trl nn nht l el cl vo nn doc vt dcu lhj,nht eo v vt dcu ga sda tlg ihllg el cl nj vt dcu. Pt dcu
noaposctb n nn nht l d vt dcu el cl n tl hjo cl ac dl v
n s elg nh to ]JA. Ulh nht cl nj nht cl ac nj noaposct
ph thun vo tlh el cl, hlh elg v at nn ht nht l cl phc
trl.Hlg s cl ac phn hp v el nj noaposctb n xn lh thbo
nlg thn Lbbdjijltj Y23Q. Sjajic v nlg s pht trcl nh tovt dcunoaposct n l nn nht el cl elg sc v nn thlg s v el cl
v hlg s cl ac trl n sphlg trlh Lbbdjijltj. Nn nht l el
cl thlg n s elg d6
Ica doc6 Jd, Nu, @b, thp ihlg g
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:2
[hc ica doc6 N, grjphct, thcn oxct, auc nj Nu v Jd, nht cl dy
rl, nht ml el.
Nn nht cl ac, nn ht xp n ph ica doc trl m at (sc
thu tclh n ph Nu, Lc hon scdcnjgbd n ph dp alg Nu
trl m at).
el cl nj vt dcu noaposctb ph thun vo tlh nht el cl
nj nht l v t d thlh phl nj nhlg trolg vt dcu, v e ihc phc trl
grjphct vo [B th tlh nht el cl nj vt dcu tlg ph thun vo ha
dlg nj grjphct (mlg :.=) Y8>Q.
Mlg :.=6 lh hlg nj ha dlg grjphct l el nj noaposctb
[B
Ha dlg grjphct ( %) cl tr ihc, v(.a)
:2 2.3:;0
=; =.2:;5
=2 :.7:;>
>; 3.2:;=
>2 =.7:;=
5; :.0:;=
Pt dcu noaposctb vc nn nht l el cl n gc tr tl hjo cl
ac dl v n p elgda ]JA, vt dcu nhb nhl cl t. y d at
hlg lghcl nu nhlh nh to nn doc ]JA. Uu thbo an nh s elg,vt dcu n nh to nl p lg at s tlh nht lht lh.
:.:.:.=. Pt dcu podyab el cl v podyab el cl nhj `bronbl
:.[hl doc, tlh nht v n nhel cl nj podyab el cl
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:0
At svt dcu podyab n nn dcl it dcl hp to anh cl t- dcl
hp trolg anh phl t. Eo n nu to cl t- dcl hp trolg anh ll vt
dcu podyab n ihllg el cl. Nn elg dcl it to nu trn- dcl hp
trolg anh phl tn nn elg lh sju Y82Q6
(C)
(CC)
(CCC)
(CP)
(P)
(PC)
X6 LH9 ^ (PCC)
(PCCC)
(CX)
(X)
(XC)
X6 O9 LH9 ^ (XCC)
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:7
Nn cl t- trolg anh phl tn ihllg dclh lg njo v enh
nhuyl thbo nhuc phl ttlg tlh nn cl tnj nn vt dcu el cl.
el cl nj vt dcu podyab n tlh thbo nlg thn Y82Q6
(-:a-:hon ^/a) (:.:)
Urolg 6
l6 ^cl tteo nj podyab ml el (:;:=- :;:3)
b6 cl tnh nj bdbntrol (N)d6 Nhcu ec nj anh dcl hp (4:;-7na), (a)
a6 Ihc dlg nj cl t(ig)
v;6 Un nhuyl lg nj cl ttrolg anh (a/s).
It quiho st el nj vt dcu podyab el cl v so slh vc
nn vt dcu ml el v n n ghc trolg mlg :.> Y82Q.
Mlg :.>6 el cl nj nn vt dcu v n v hu n
Pt dcu v n el(^/na)
[odyab el
(^/na)
Nu )1LQx:;
-2
Gb :;-
:;- [odyjnbtydbl, (NH)x :;-
^c :;-2 [odyphthjdonyjlcl :;-2
M :;-0 [odypropydblctrcd
Y(NH>)N(NL)1NHQx:;
-8
^pclbd `brct :;-=
:;-2 [odypyrod :;-:2
[brovsictb :;-:=
[ody-p-phblydbl, (N0H5)x :;-:2
[ody-p-phblydblsul`uj,
(N0H5^)x:;
-:2
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:8
l nj vt dcu podyab tlg dl ihc n phj tha at s nht
cl dy rl. Llg nht phj tp nhca t ;.;:% aod tr dl. P e
podyjnbtydbl n phj tp tha nht lh Dc, C=, H=CrNd0th el nj vt dcu
d :;;^/na Y23Q. Ihc phj tp at snht cl dy rl vo phl tpodyab to
trulg ta cl tnh trl anh phl td gca ro thlgl nnh cl t.
el cl v hlg scl ac nj podyab el cl ph thun vo
lhct ac trlg v tl sselg vt dcu. Uuthun vo nu trn v ml
nht nj podyab, nn nht cl dy thnh hp s n s elg phj tp Y==Q.
Ihc selg nht phj tp ihlg thnh hp s da gca el nj vt dcu.
Nn nht phj tp vo podyab el cl n nhcj da = doc (mlg:.5) nho
cl t(doc l) v to dtrlg (doc p) Y58, 23Q.
Mlg :.56 lh hlg nht phj tp l el cl nj podyjnbtydbl.
Nht phj tp el (^/na)
Doc dtrlg, doc p Nho bdbntrol, doc l
Mr :;->
Nd :;-5
C :;=
Js@0 :;
^mNd2 2:;=
NdO5 :;>
[@2 :;=:;>
Dc =:;
Lj :;=
I 2;
=.
[odyab el cl nhj `bronbl, phlg php tlg hp v tlh nht cl
tnj podyab nhj `bronbl
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:3
Ecnyndopbltjecblyd st (`bronbl) d at hp nht n ica
n nu trn nj col nyndopbltjecblyd v col @b(CC). Eo col
nyndopbltjecblyd n 0 cl tv nu to anh vlg ll l n
nn tlh nht tlg t lh hp nht tha mblzbl. @bronbl n
ih llg phl lg th thbo n nh c cl t vc at s nht
thnh hp to podyab n nu trn dcl hp trolg anh phl t. Nn podyab
ml el nhj @rn n tlg hp d6 pody`bronbl9 podyjliydbl`bronbl v
podyjrydbl`bronbl9 podyjzophblydbl`bronbl v pody`bronblydvclydbl ... Nu
trn nj tlg doc podyab el cl nhj `bronbl n nn elg sju Y85, 82Q6
j) [odyabthydbl`bronbl v podyphblydbl`bronbl
m) [odyjbtydbl`bronbl v podyscdjl`bronbl
n) pody`bronbl
>.
Nn phlg php tlg hp podyab el cl nhj `bronbl
[ody`bronbl
[ody`bronbl n thn tlg hp mlg lhcu phlg php ihn lhju.
[hlg php nhulg tlg hp pody`bronbl phl lg trlg hp nn el
xut hjdogbd nj `bronbl. P epody`bronbl n tlg hp mlg nnh phl
lg hl hp mroa`bronbl v ecmroa`bronbl vc Nu tc :;2:=;;N nho hl
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=;
hp pody`bronbl, ec`bronbl v :,:-trc`bronbl. [hl lg trlg hp to podyab
tc =0; -=02;N trolg ac trlg ih lct Y>2, 73, 82Q6
[ody`bronbl nlg n thn tlg hp quj el xut n dctc`bronblY>2,
8:Q6
Lha lghcl nu nj Iorshji v Lbsabyjlov tlg hp
pody`bronbl mlg phlg php xd `bronbl vc gn teo to podyab n nu
trnlh sjuY>3Q6
[ody(abtydbl`bronbl)
Nn pody(abtydblb`bronbl) n tlg hp thbo phlg php trlg
lglg thbo n nhto njnmonjtcol, xn tn selg d nn jxct Dbwcs. Pt dcu
podyab phl tihc :;;; -=;;; n tlg hp t`bronbl v NH=Nd=, xn
tn JdNd>.
l
NoNd=
lMuMr
Nu =0; N:;2;
[odyab
Odcgoab+
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=:
[ody(abtydbl`bronbl) nlg n th n tlg hp t phl lg lglg t
`bronblydabtjlod trolg eulg enh HNd tc ::;;N nho nn sl pha podyab
ihn lhju. podyab n phl t ihc aod trulg mlh d =20; n lglg t t
`bronblydabtjlod tc 8;;N, xn tn Bt=O.M@>Y85, 82Q.
At phlg php ihn tlg hp pody(abtydbl`bronbl) t `bronbl v
pjrj`orajdebhyt trolg jxct sul`urcn a n tc lhct phlg. ^l pha
podyab anh thlg n tnh t hl hp sl pha mlg phlg php nhct
s elg eulg ac todubl. [odyab n phl t ihc aod ec =2;; n tlg
hp t `bronbl v pjrj`orajdebhyt mlg phl lg lglg t s elg xn tn
jxct Dbwcs ec ac trlg p sut tr.
[odyabthydbl`bronbl nlg n th n tlg hp mlg phl lg lglg
t el xut abthoxy`bronbl ihc n at VlNd= hon M@>/btb. [hl t dlg
nj podyab trolg iholg =2;; 0;;; Y>3Q.
[odymblzydbl`bronbl
[odymblzydbl`bronbl ([Mz@rn) n tlg hp t phl lg podyab
lglg tnj `bronbl vmblzjdebhyt, xn tn d jxct Dbwcs tc lhct ::;
:>;;N. [odyab n phl tihc trulg mlhiholg =2;; Y>;, 82Q. Nn xn tn
thlg n selg d nn jxct v n lh HNd, H=^O59 nn jxct Dbwcs lh
VlNd=, JdNd>, M@>.
Nn doc podyab nhj `bronbl ihn
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==
[odyab n scdcn nj `bronbl n cu nh mlg phl lg trlg hp
thbo n nh nlg hp @rcebdNrj`t hon quj hp nht n Dc nj `bronbl Y=:Q.
Nn podyab n cu nh mlg nnh ny ghp `bronbl vo anh
odcgoab dcl hp nlg to rj nn sl phl podyab el cl Y7>Q. Lha
lghcl nu nj @rjlncs tlg hp podyab el cl n t tlh mlg phlg
php ny ghp `bronbl vc nn odcgoab dcl hp lh podyphblydbl,
podythcophbl, podypyrod, podyjlcdcl .v.v. Y:3Q. [hl lg tlg hp nn podyab
u quj hp nht n Dc nj `bronbl6
5.
Ulh nht cl v tlh nht tnj podyab nhj `bronbl
Ulh nht t6
Ulh nht tnj podyab nhj `bronbl n iho st mlg phlg php
phnlg hlg spcl t. J. J. Mbrdcl v D. J. Mdcuabl`bde iho st nn
eulg enh podyab nhj `bronbl v lhl thy nhlg n ihllg na lg
t, nn it quotlh nht na lg trclg nj nn au podyab nhj @rn
trolg eulg enh mblzbl trolg ttrlg >2;;0:;; Obrstbe Y=8, 82Q.
Mlg :.26 Hsna lg trclg nj podyab nhj `bronbl
l-MuDc+
X6 Nd, Mr, C9 a6 :2;;9 l6 =2;;
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=>
[ody`bronbl [hl tihc Hsna lg trclg
@bronbl :80 -;.02.:;-0
Ec`bronbl >7; -;.=2.:;-
[ody`bronbl =2;; 5>.:;-0
[ody(abtydbl`bronbl) :0;; :.5.:;-
[ody(abtydbl`bronbl) =;;; ;.7.:;-0
Nn podyab nhj `bronbl ihc n gc trphl tihc trolg iholg xn
lh th sn tlh nht thul tY05Q. Nn lghcl nu nj . . v
. . c vc podyab nhj `bronbl n tlg hp mlg phlgphp @rcecbd Nrj`t, ihc phl tnhphnlg hlg spcl tnlg nho it qu
tlg t Y85Q. . . , . . , . . v . .
lghcl nu iho st phnlg hlg spcl tv tlh nht t
nj nn podyab nhj `bronbl6
-
^l pha podyab ho lglg tnj `bronbl v -mroaljphtjlod
podyab C v CC
-
[odyab n cu nh mlg phl lg lglg t `bronbl v l-
ecndomblzblpodyab CCC
-
^l pha lglg tnj `bronbl v hyeroxydjacl podyab CP
-
^l pha lglg tnj jnbtyd`bronblpodyab P.
Mlg :.06 It quiho st tlh nht tnj podyab nhj `bronbl
[odyab Hsg Hsna lg trclg[odyab C :.30: =.2:;-5
[odyab CC :.32; :.5:;->
[odyab CCC :.38> :.7:;-5
[odyab CP =.;;;5 8.2:;-2
[odyab P :.30= =.7:;->
@b>O5 =.:= -
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=5
Uit qunho thy nn podyab nhj `bronbl n tlh nht st ttlg
tvc tlh nht tnj oxct st taa (mlg :.0). It quo na lg t
nj podyab nlg ihlg lh it dul trl.
Ulh nht el cl nj podyab nhj `bronbl.
Ulh nht v ihllg el cl nj podyab nhj `bronbl phthun vo
nu trn v ec anh phl tnj podyab. It quo tlh nht el cl
nj at spodyab nhj `bronbl n thlg i trl mlg :.7 Y85Q.
Mlg :.76 Ulh nht el cl nj nn doc podyab nhj `bronbl
Pt dcu podyab2;(^/na) B, bP
[ody`bronbl - -
[Mz@rn :;-
:;- -
^l pha lglg t`bronbl v jdebhyt :.=>:;-:= ;.07
Nn vt dcu ml el n tlh nht el cl tlg ihc n phj tp at s
nht to thlh nht ml el elg p (dtrlg) hon ml el elg l. ^tlg
tn gcj podyab v nn nht phj tp to thlh phn dcl hp phl nn, ihc
nu trn nj anh podyab n elg J-....J+. Nn nht thlg n selg
phj tp vc podyab nhj `bronbl n phl tihc t3;;8;;; d cot v
tbtrjnyjlobtydbl (LN)=N1N(NL)=(UNB),t d cot tlg hp vc podyab nhj
@bronbl n thdl l :6= ha dlg Y82Q.
2.
Ihllg hp thslg cl tnj vt dcu podyab el
Pt dcu podyab el cl n phj tp nn nht cl dy rl n ihllg
da suy gca v hp th llg dlg slg cl t njo. P e pody-p-
phblydbl-mblzomcsthcjzod ([MU) v podyjnbtydbl n phj tp tha cot n
ihllg suy gca llg dlg slg cl tl -5;eM tc tl strl5GHz.
Pt dcu podyab el n selg nhyu trolg nu trn anh nlg hlg
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=2
hon al nhl ^jdcsmury. Nn iho st vtlh nht cl nj vt dcu podyab
el nho thy nhlg n an tl hjo cl ac rt dl tc tl s vc slg
(mlg :.8) Y58, 23Q...
Mlg :.86 Ulh nht tl hjo yu tcl ac nj podyab el phj tp cot.
Pt dcu Nht phj tp Ul so (GHz)r*
[MU C-, :;
:0col/na
> 3.83 >-f8>8;
[odyjnbtydbl
ncs-(NHC;.;52)xC=, 5.2% ihc dlg 8.3 2-f3;3;
Lghcl nu selg podyab el cl nhto vt dcu hp thslg cl
t rjejr (]JA) d at hlg lghcl nu qujl trlg v jlg n lghcl
nu p elg trolg thn t Y:, =, >Q. Uuy lhcl, vt dcu podyab el rt ih
tlg hp n vt dcu n nu trn anh thlg ll ih gcj nlg v ihllg
lg elg nn vt dcu podyab el cl vo thn tgp lhcu ih ihl.
:.:.:.>. Pt dcu cl ac
Pt dcu cl ac d doc vt dcu n ihllg phl nn ec tn elg
nj cl trlg. Ihc at nht n t trolg at cl trlg B sn hcl
tlg phl nn to nn aoabl tlh cl. Ihllg phl nn nj vt dcu
ph thun vo ml nht nj nhlg. Ebmyb a t qu trlh phl nn nht
cl ac l gc tr nl mlg nl n at iholg thc gcjl lht lh - Uhc
gcjl tr (r) Y23Q. Urolg qu trlh phl nn, nht cl ac s hp th llg
dlg cl trlg nhuyl thlh nn elg llg dlg ihn6 lhct llg. Ih
llg hp th llg dlg cl ph thun vo ml nht nj nn nht cl ac
yu t tl hjo gncl ac (tjl), n xn lh lh sju6
(:.=)
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=0
Urolg 6
-6 cl tha nj vt dcu(@/a).
-;6 Hlg s cl tha trolg nhl ihlg (;18.852=:;
-:= @/a)
-r6 Gc tr cl tha rclg.
Hlh:.: nho tj thy, tc ec tl vc slg (= >; GHz) vt dcu cl ac
m phl nn to aoabl dlg nn ec tn elg nj slg cl t tlg t
lh qu trlh phl nn ec tn elg nj cl trlg. Eo , nn nlg thntlh tl hjo tjlnj vt dcu cl ac trolg cl trlg nlg n th n p
elg tlg lg trolg cl t trlg tc tl s vc slg.
Nn mn xslg rjejr n selg trolg ec tl trl ihc pht tc an
tcu thlg d slg phl nn lgjlg (slg lgjlg) hon slg phl nn thlg
lg (slg lg). Nn vt dcu cl ac n selg vt dcu mjo ga vt
dcu cl ac thlg v nht cl ac hot lg. Nht cl ac hot lg
d nn nht cl dy rl n hlg scl ac I mcl c eo tn lg nj cl, t
trlg v tl smn x. Llg dlg mn xslg ihc p dl mat cl ac
hot lg sda phl nn hon qujy nn nht cl ac, el l d tcu hjo
llg dlg slg cl t. Nn nht cl ac thlg n gc trhlg scl
ac I ihlg c trolg ec tl da vcn nj rjejr lu rj trl v ihllg
Hlh :.:6 ^mcl c , thbo tl snj vt dcu cl
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=7
hp thnj nhlg nhyu eo tlh nht tl hjo cl ac nj vt dcu.Ihc nn
sc el cl n phc trl vc podyab, llg dlg tl hjo n tlh thbo
phlg trlh v ph thun vo ey nj vt dcu. j s nn vt
dcu hu n n h s cl tha thp v hlg s cl ac njo (=.>), ihlg
thnh hp nh to vt dcu hp th mn x cl t. P e c vc podystyrbl,
trolg ec tl AHz n 1=.>, h s phl x m at d ]1;.:0. Gc tr trl qu
dl, eo , vt dcu s elg nho nh to vt dcu hp th nl n hlg s cl
ac lh.
tl hjo cl ac nj vt dcu tc at tl sphthun vo el
cl v hlg scl ac nj vt dcu. Eo , aul tlg ihllg hp th
mn xslg nl to vt dcu n hlg scl ac v n ihllg el cl
thnh hp vt dcu ihlg n ihllg djl truyl slg hon phl xslg
trl mat vt dcu v n h s tl hjo cl ac njo. Nn vt dcu thlg
n selg d nn vt dcu podyab n phc trl vc nn nht l el clda tlg ihllg el cl nj vt dcu, vt dcu podyab ml el v nn nht
cl dy rl.
:.:.:.5. Nht cl dy rl.
Nht cl dy rl d nn vt dcu n nu trn tclh thdcl it col v n
tlh nht el cl njo. Nn nht cl dy rl n nu trn tclh thihca ihuyt
to rj nu trn elg lg ha v j dp. Nht cl dy rl n ih llg
nhuyl ttrlg thc cl ac sjlg trlg thc el cl trolg iholg lhct
lht lh. Pt dcu selg da nht cl dy rl dul n hjc phj nu trn - v
-. Urolg iholg lhct thnh hp phj - nhuyl thlh phj - n nn col
el cl. Nn nht n selg da nht cl dy rl Y23Q6
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=8
- Hp nht nj Dc vc nn jlcol lh ^O5=-
, ^cO5=-
, [O5>-
, GbO5=-
,
JdNd5-, UcO5
=-lh6 Dc5M5O:=, DcJdNd5, Dc=^O5, Dc>[O5, Dc5^cO5.v.v.
-
Nu trn -Jduaclj6 A=O.xJd=O>(A6 Lj, I, ]m, LH5, Jg 9 x6 2
::).
- Col Nu+lh6 NuC, INu5C2
-
Nn hp nht nj Jg lh6 JgC, Jg=^, Jg=^b v h eulg enh rl
AJg5C2(vc A6 I, ]m, LH5)
Nn nht cl dy rl n lg elg nhyu da nn doc pcl v lgul
cl. Lgoc rj, vt dcu cl dc rl v jlg n lghcl nu trolg qu trlh
cu icl tlh nht hp thhon phl xnj mn xslg v y d at doc
vt dcu nl thct nh to vt dcu hp thllg dlg slg rjejr.^it
hp nht cl dy rl, vt dcu hp tht v vt dcu hp thcl nho php nh
to vt dcu n ec tl hp thvc slg xn lh, y nlg d at hlg nh
to vt dcu hp thcl t. At ihn, selg it hp nn vt dcu nho php
tj arlg ec tl v gca ey nj dp vt dcu.
:.:.=. Pt dcu tl hjo t
:.:.=.:. Gcc thcu nn doc vt dcu t
Pt dcu td nndoc vt dcu n ihllg na lg tnjo to tthlg.
Pt dcu st td nn vt dcu tn ihllg da tlg dlg tthlg nj vt
dcu ihc n dn t trlg t vo. Pt dcu st t n th n nhcj da hjclha rclg mct d vt dcu tnlg v vt dcu taa. Pt dcu tnlg n
selg trolg thct mghc jueco/vcebo, mnhuyl c llg dlg, thct mcu
ihcl elg cl t... Nn vt dcu taa nh yu n selg trolg nn
dlh vn lh mlhnoaputbr, hthlg lhl tl hcu UP, rjeco v thct mv
tuyl, thct mvc slg9 thct mqujlg - t.
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=3
Nndoc vt dcu n tlh nht trt j elg, eo , nn doc vt dcu t
trl n phl nhcj thbo nu trn phl t v na lg lg nj vt dcu
thlh nn lha6
Pt dcu lghnh t
Pt dcu thul tv vt dcu phl st t
Pt dcu st tv `brct t.
Pt dcu lghnh tv vt dcu phl st tn tlh nht tphthun vo
dn ttrlg lgoc. Eo trolg phl ly, nhlg tc nh tp trulg iho st
nn tlh nht vt dcu st tv vt dcu `brct tv ihllg p elg nhto
]JA. Pt dcu st td nn doc thptn el cl dl v tl hjo elg
na lg njo (elg Beey) n selg trolg dlh vn llg dlg cl. Pt
dcu `brct td nn oxyt ica doc n nlg thn nhulg d AO.@b=O>(A6 d nn
ica doc ho tr=) n lg elg trolg nn dlh vn v tuyl tl snjo.
:.:.=.=. Nu trn tclh thv tlh nht nj vt dcu `brct t
j. Nu trn tclh thnj vt dcu `brct
Pt dcu `brct td hl hp nn oxct ica doc v @b=O>n nu trn tclh
th. Nn vt dcu `brct n nhcj thlh = lha nhlh thbo nu trn tclh th6
Pt dcu spclbd =6>6 Pt dcu taa n nu trn dp phlg. Nlg
thn tlg qut nj vt dcu spclbd =6> n elg A@b=O5 (Pc A d
nn col ica doc ho tr=6 Al=+
, Lc
=+
, Vl
=+
, @b
=+
, Nu
=+
, ..., honDc=
=+) hon hl hp nn col ica doc.
Pt dcu gjrlbt6 Pt dcu `brct t n nlg thn tlg qut
>A=O>.2@b=O>(Pc A d nn ica doc t hca lh ^a, Bu, Ge,
Um, Ey, Ho, Br, Ua, Sm, Du, S)
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>;
Pt dcu ajglbtopduamctb6 Nn vt dcu n nu trn dn phlg
(hbxjgoljd) v n nlg thn tlg qut AO.0@b=O> (A6 Mj=+
,
^r=+, [m=+). Pt dcu ajglbtopduamctb n phl lh thlh >
lha n nu trn dn phlg n nlg thn tlg qut6
Doc W6 :MjO.=AO.8@b=O>
Doc S6 =MjO.=AO.0@b=O>
Doc V6 >MjO.=AO.:=@b=O>
Pc A d nn col ica doc ho tr= Al=+, Lc=+, Vl=+, @b=+, Nu=+...
m. Ulh nht tnj vt dcu spclbd
Pt dcu spclbd d doc vt dcu `brct taa,nn thlg s ten trlg
nj vt dcu d ttha, gc trna lg tmo ho (Mshon As), hst
e (Hs). Mlg phlg php o thlg ttrnho php tj xn lh nn
gc trMshon As, Hnv gc trnj .
ttha nj vt dcu `brct phthun vo thlh phl v tdthlh
phl trolg nu trn tclh thnj vt dcu (mlg :.3)
j;
J6 Nnelg nu trndp phlg
col ID (@b>+, Ab=+) Oxy
j;n;
j;
M6 Nu trndnphlg
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>:
Mlg :.36 ttha, thlg stv lhct Nurcb nj at s`brct v
vt dcu st tY=3, 27Q.
@brct Utrlg mo ho,As(bau/g)
ttha rclgphl,
Lhct Nurcb, ;N
Al@b=O5 5:; =2; >;;
@b>O5 58; 7; 272
Lc @b=O5 =7; :; 23;
Nu @b=O5 :>2 7; 522
Ag @b=O5 ::; :; >:;
@b :7:5:=8 =;;; 77;No :5==:23 =2; ::>:
Lc 58525.5 0;; >28
N nh tl hjo t trolg vt dcu `brct eo6 Y:=Q.
:) Ul hjo t tr, eo qu trlh nhuyl vnh eoabl nj t trlg
=)
Ul hjo t e, eo qu trlh ia ha ml trolg phl t vt dcu.
>) Ul hjo eo elg Beey, elg cl na lg trolg vt dcu.
Ulh nht v ih llg tl hjo t nj nn vt dcu `brct n lg elg
nh to nn ]JA.
:.:.=.>. Nn phlg php nhto vt dcu telg ht
Pt dcu spclbd n cu nhthbo nn phlg php sju6
:.
[hlg php ga6
[hlg php ga ej trl n sphl lg nj nn oxct hon nn hpnht njnmoljt ica doc llg nhy tc lhct :;;; :>;;;N Y=3, 00Q. Zuc
trlh cu nh nn tclh thspclbd thbo phlg php ga n thhcl thbo
s 6
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>=
Inh thn ht spclbd lh lht n to rj thbo phlg php ga
iholg :;;a.
=.
[hlg php sod gbd
N sd thuyt nj phlg phptlg hp sod - gbd dphl lg thy
phl nn auc ica doc hon nn jlnodxyt ica doc elg hj tjl thlh elg
gbd nj nn hyeroxyt ica doc . ^ju , ebhyerjt nn ht gbd ica doc n
to rj thlh nn tclh thspclbd. Zu trlh to gbd nj eulg enh auc @b>+d
phl lg thuphl trlg hp to podyab nj @b Y:=Q6
@b>++ H=O @bOH=++ H+
@b>+
+ =H=O @b(OH)=++ =H
+
=@b
>+
+ =H=O @b=(OH)=5+
+ =H
+
>@b>++ 5H=O @b>(OH)52++ 2H+
- podyab
Gbd n to rj ec elg hyeroxyt nj @b v nn col ica doc ihn nlg
it trl gbd st thbo tdxn lh, thcu it nn gbd st tc lhct thnh hp,
iholg lhct tc u d 52; -2;;;N to rj oxct n nu trn tclh th.
[hlg php cu nhspclbd d phl lg thuphl nn auc nj @b>+
it hp vc nn auc nj col ica doc ihn lh Al=+, Vl=+, @b=+, Lc=+, Nu=+,
Dc+.v.v. to gbd @b phn hp Y2Q. Nn hp nht phn n selg thlg d
@b
OH
OH
@b
OH
OH
Nl v phc trl tdhlhp nn oxct ica doc6 @b=O>9
AlO=9 VlO ...
Lghcl hlhp nn
oxct
Uhcu it tclhct llg
nhy
Lghcl tclhthspclbd
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>>
@b (CCC) v nn ica doc ho tr= vc hp nht -hyeroxy njnmoxydcn lh jxct
ajdcn, jxct tjrtrcn, jxct gdynodcn, jxct djntcn, jxct ncrcn Y=>,=2Q hon phn
@b(CCC) v nn ica doc ho tr = vc -jaclonjnmolyd lh urb, jnbtojxbtjt
.v.v Y:5, :0Q. Ihc nn ht gbd st trolg ac trlg ln d nn ht tlh cl
v n dcl it vc nn phl t ln to nn gbd hyerjt. Zu trlh hlh
thlh nn gbd hyerjtml phthun vo nn yu tsju Y:=Q6
trlg hp hjy phl tihc nj podyab st
pH nj ac trlg .
Llg jlcol v hot nj nn jlcol trolg eulg enh.
An podyab ho (gc tr l) nj @b ph thun vo pH nj ac
trlg v t d llg jlcol/njtcol trolg eulg enh. An phl lg
podyab ho tlg sda gca tlh cl nj gbd v sda gca ihllg
nlg it to it tj nj hyeroxct ica doc teulg enh. At ihn, an
podyab ho nj gbd st slh hlg l gc tr t tha nj vt dcu.U d
llg aod jlcol/ njtcol tlg lg sda gca ihllg it tnj nn
ht ibo. Nn jlcol nlg lh hlg l qu trlh to gbd nj @b Y:=Q. Nn
jlcol n hot tlh alh lh col Nd-, ^O5=-sda tlg ihllg ibo tnj gbd
@b. At ihn, nn col trlsrt ih rj snh rj ihc gbd st, ihc n at trolg
gbd st, nhlg sda thjy c nu trn tclh thspclbd v tlh nht tnj `brct
to rj. Nn jlcol thlg n selg cu nhspclbd d LO>-, NH>NOO
-,
nn jlcol ly n u ca d mphl hu tc lhct 5;; 2;;;N, eo
ihlg nl phc tnh doc rj ihc gbd.
[hlg php sod gbd nho php cu nhnn tclh thspclbd n inh
thn ljlo. Uuy lhcl, phlg php sod gbd thnh hp nhto quc a lhv
p elg nhto vt dcu n nn yu nu n th.
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>5
:.:.=.5. Ih llg hp th slg cl t nj nn vt dcu t
Lh trlh my trl, vt dcu t d thlh phl n ml nh to nn
doc ]JA v n nhn llg da nu thp thttrolg vt dcu. Ihllg hp
thslg cl tv ec slg hp th nj vt dcu ]JA ph thun vo tlh
nht t, t tha v tl s da vcn nj vt dcu t Y0Q. Ac doc vt dcu
`brct n lg elg nhto ]JA tc at ec tl lht lh. P evt dcu @b
tv at s`brct taa lh AlVl-`brct, LcVl-`brct n ec tl da vcn thp
(42;;AHz) Y7=Q gy tl hjo t dl trolg ec tl svc slg hon njo hl.
Uuy lhcl eo ml nht nj slg cl t, nn vt dcu tthlg n it hp
vc nn vt dcu cl to anh hp thnlg hlg Y3, 5=Q. Nn vt dcu st t
v vt dcu spclbd n ttha njo v tl snlg hlg thnh hp nhto
nn doc ]JA trolg ec mlg tl N, X, Iu, I. Nn doc hp ica t nj st
ica doc n tlh nht el cl njo ll n selg nhto ]JA n ec tl
hp ththp. Nn vt dcu n nu trn Gjrlbt v nn vt dcu tnlg n nu
trn hbxjgoljdn ec tl nlg hlg njo hl n lg elg nhto nn doc
]JA trolg ec I v Ij. Nn vt dcu tihc n it hp vc nn nht hp th
cl d nn podyab el cl s da tlg h shp thv gca ihc dlg
rclg nj vt dcu ]JA.
:.=. NR U]N H[ UH^LG CL UNJ PU DCR
:.=.:. Nu trn hp thv trct tcu llg dlg slg cl tmlg
phlg php gcjo thoj, tl x
Pt dcu n nu trn xp v dc da trl ml at n ihllg tl xtcj
tc nj slg cl t(BW). Nn tcj tl xlysgcjo thoj v trct tcu llg
dlg dl lhju Y2:, 07Q. Nhcu ey tc thcu dp ]JA trct tcu llg dlg
slg thbon nhtl xgcjo thoj trl ml at dY23Q6
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>2
(:.>)
Urolg 6
d6 ey nj vt dcu (a)
6 Mn slg tcj tc (a).
6 Hlg scl ac nj vt dcu (@/a)
6 ttha nj vt dcu (H/a).
P evt dcu xp nj podystyrbl phc trl vc nn nht el cl lh
grjphct, mt ica doc n ihllg hp thllg dlg mn xtrolg ec tl ;.5
5;GHz vc hcu sut -=;eM Y55Q. Nu trn xp nj vt dcu noaposct hp th
n ;= elg n trlg6
Hlh elg v inh thn nj dxp n to rj mc nn podyab ll.
Hlh elg v inh thn nj dxp n to mc nn ht nht l
Nu trn xp nj vt dcu to rj nn mulg ihlg vjlg datrct tcuv tl xnn mn xcl tihlg nho nhlg trvc rjejr.
Nn vt dcu xp trl n svt dcu podab n nu trn xp lh njo su
nn doc, vt dcu xp [R, B[ ihc phc trl vc nn nht cl ac v to nu
trn d xp elg t olg n ih llg hp th llg dlg slg. [bricls v
nlg s lghcl nu to vt dcu hp th vc slg trl n s vt dcu xp
noaposctb jnrydlctrcd- podystyrbl-mutjecbl, nn doc lhj lhct eo lh [B,[[, podybstb, [R, B[ v nn nht l el cl lh nn ica doc elg mt v
elg sc lh @b, Nu, Jd n ihllg hp thtc thcu -:2eM l -:;; eM Y0;,
0:Q. ^lg cl tmtrct tcu eo gcjo thoj tc mat nn vnh lgl nj xp.
At hlg to vt dcu n nu trn xp ihn d s elg nn ht
pcgablt n ecl tnh mat dl Y22, 20Q. Nnvt dcu noaposct hp thvc
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>0
slg n nu trn xp n to mc nn ht pcgablt d nn nht cl ac hjy
nn nht el cl n nu trn xp lh grjphct hon nn ht`brct tn nu trn
xp nho vt dcu n tlh nht n d tt hl nn vt dcu xp eo podyab to rj.
Nu trn nn ht txp n cu nhmlg nnh phdp vt dcu tdl trl
nn ht scdcnjgbd, oxct lha.
Uhlh phl to it nu nho vt dcu noaposctb hp thnhyu d nn
doc lhj tlg hp lh B[, [R, scdcnol, njo su tlg hp Y23Q .Nn vt dcu
ly n lhcu u ca lh ml ac trlg, ml thc tct, nhu ac al, tu
an nh selg lgc tj dj nhl vt dcu thnh hp. Ulh nht n d nj
nn vt dcu n ghc trolg mlg :.:;.
Mlg :.:;6 n trlg nj nn ta njo su hp thslg cl t
UU Pt dcu njosu
Iholglhct da
vcn (oN)
nlg
(^horbJ)
u ca Lhn ca
: Csoprbl(C]) -:8 3; 723; l hc tt,nhu x, nhuac al
Nhu lhct ia,ihlg nhu zol,
mn x at trc,eu a
= Ndoprbl
(N])-:; :;; 7; Nhu thc tct,
ac al, lnmcl
Ia nhu eulgac tha, nhtoxy ho, lhct thp
> Lctrcl
(LM])
-=; :2; 72 Nhu eu a,
lhct
Ia nhu oxy
ho5 @do -=; =;; 0;7; Nhu lhct,
nhu dlh9 mlozol, thc tct,
mn x
Ia nhu x
2 ^cdcnol ->; >8; 0;7; Nhu lhct,nhu dlh9 mlozol, thc tct.
Ia nhu xlgeu a, acal, x.
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>7
0 Rrbthjl ->; :2; 8;82 Nhu ac al,x, eu a9
ml t, acal njo
Ia nhu jxct,ica, ln llg
Nn lghcl nlg trlh lghcl nu xn lh nu trn nj xp nj vt
dcu hp th, trct tcuhcu qullg dlg slgthlg n hlh elg tolg
hjy hlh elg ica tthp.Nu trn ly sto rj nn d, hn n n tlh lh
mulg ihlg vjlg trolg vt dcu. Zu trlh tl xgcjo thoj slg cl ts
xy rj tc nn mat tcp gcp phj nj vt dcu Y23Q. Uhc gcjl gl y, nlg
lghljlo n selg nhto ]JA nho vt dcu lhn ihllg hp th
dl. v evt dcu ]JA elg xp nj [R v njnmol el cl ljlotumb n
ihllg hp th-:;eM trolg ec tl X (8.=:=.5 GHz) Y70Q.
:.=.=. Nu trn hp thslg cl tto anh nlg hlg
Pt dcu n nhto tnn vt dcu t, nn nht el cl, nn nht cl
ac thnh hp v n thct dp thbo at nu trn n mct sto anh nlg
hlg trct tcu llg dlg vc slg nu trn hp th slg cl t rjejr
(]J^) elg anh nlg hlg. n tlh v ihllg hp thvc slg nj vt
dcu phthun vo tlh nht, tlh lh hlg phl nn v at nj nn hp
nht tv nht cl ac nj vt dcu Y23Q. Abybr v nn nlg s ihaph
rj nu trn hp thllg dlg vc slg eo to anh nlg hlg nj nn vt
dcu phl nn tph thun vo lg lht nj nn phl nn t. Nu trn
hp theo to anh nlg hlg nj vt dcu tn nu to lh hlh:.=.
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>8
Nn vt dcuphl nn tv phl nn cl n nu trn lh hlh :.=s
to anh nlg hlg tlg tlh anh ejo lg hlh :.>
Nn vt dcu trolg nu trn hp thcl telg nlg hlg n mtr
sjo nho ec phl el lg trn v phl el na lg trolg iholg :/5
:/=(6 Mn slg nj mn xcl t), thlg d nn nht el cl n tlhnht tl hjo t. Llg dlg tcj mn xtruyl tc p vo mat vt dcu to
ejo lg nlg hlg tlg lg vc mn slg nj l. Nn ejo lg nlg
hlg smtrct tcu trolg phl vt dcu st tn vjc tr d vt dcu el cl
na lg v lg trn. Lgoc rj, llg dlg nj tcj mn xnl mtl hjo eo
trihlg nj anh, tlg trmat nj vt dcu hp thvc slgto nu
trn anh nlg hlg n gc trtc u trolg iholg =;;5;; Y:0, =2, =0,=7Q.
At elg mtr ihn nj vt dcu phl nn tsjo nho trn aoabl phl
nn nj vt dcu vulg gn v solg solg vc at ica doc nj ay mjy (hp
ica euyrj) to thlh thp nlg hlg hjc nhcu (hlh :.5) Y50, 58Q. At
mtr v inh thn nn vt dcu phl nn tphthun vo mn slg.
D D/=
J M
DE
N]=
]>N
]: D
Hlh :.>6 Anh nlg hlg ejo lg
]:, ]=, ]>6 cl trD6 Nul naN6 U
c l
Hlh :.=6 Nu trn hp thslg cl tto anhnlg hlg nj nn hp nht phl nn t
J6 Ll ica docM6 Pt dcu n tlh nht st tN6 Pt dcu el cl lg trnE6 Pt dcu el cl na lg
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>3
Nn vt dcu phl nn tn selg d nn doc vt dcu n tlh nht
st telg mt n inh thn 4 2a lh nn doc hp ica @bscdcn, @bLcY:>Q .v.v.9 nn phn njnmolyd nj @b, Lc9 nn `brct Y03Q. Nn vt dcu st t
elg pcgablt n hlh elg nu hjy elg sc n phc trl trolg nn doc
lhj podyab thnh hp to noaposctb tphn hp.P enoaposctb nj mt
@b xa n ihllg hp thvc slgtc j tc 3.5GHz Y:2Q. Ulh nht hp th
llg dlg nj nn vt dcu hp thphthun vo6
Ihc dlg v at ht pcgabl phl nn ttrolg nu trnAt phl nn trl at l vecl tnh
At lg lht nj nn phl nn t
Gn tcp xn vc tcj tc nj mn x.
Ih llg hp thv ec slg hp thslg cl t nj vt dcu ph
thun vo tlh nht t v hlh elg inh thn nj nn nu t thlh phl.
Iho st ihllg hp thslg cl tnj noaposctb nj nn ht gjrlbt t
S=(@b;.2No;.2):7n inh thn ljlo, nn thlg shlg scl ac phn hp
(, ) lhv ihlg c trolg ec tl ::; GHz nho thy vt dcu n
suy gca tl hcu phl hc iholg -=; eM trolg ec tl =.78.:GHz vc
ey nj vt dcu =.=2.7aa v suy gca tl hcu phl hc < 5> eM tc
lh pcn 2.0GHz vc ey vt dcu >aa Y5;Q.
Hlh :.56 Anh nlg hlg hjc nhcu
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5;
Ihc selg nn vt dcu hp thtd nn nht el cl, v e6 @b v
hp ica nj @b th trolg ]J^ nlg hlg ihlg nl n thlh phl el
cl. c vc nn doc vt dcu phl nn tihlg el cl lh nn doc `brct
t, nn phn njmolyd nj @b, Lc, No thlg n phc trl vc nn nht el
cl elg sc hjy nn podyab el ecl to anh nlg hlg.
Ac doc vt dcu thon vt dcu cl ac nhhp thllg dlg vc
slg tc at ec tl slht lh tuthun vo nu trn v tlh nht nj vt
dcu Y0Q lh nn hp ica t, nn hp ica st t, nn phn nht njnmolyd nj
@b, Lc, No n ih llg hp th llg dlg trolg ec tl s thp (= 3
GHz)Y:>Q, nn vt dcu `brct n nu trn spclbd v vt dcu n nu trn elg
pbrovsictb n ihllg hp thtrolg ec tl snjo hl (8 := GHz) Y>:, 75,
72Q. Ihllg phl xmn xslg cl tnj nu trn ly phthun vo
lg lht nj mat tcp xn, at v phl mnn thlh phl nlg
hlg v nn thlh phl n nhn llg lh d cl tr trolg nu trn nlg
hlg.
:.=.>. Nu trn hp thslg cl telg al nhl ^jdcsmury
]J^ elg al n ^jdcsmury ta rj. Nu trn nj al nhl ^jdcsmury
d at dp vt dcu hp thcl t nnh mat ica doc ll at iholg nn
/5. Gcj dp hp thcl thlg n at dp vt dcu n nu trn xp honvt dcu hp th tY:7Q (hlh :2). Nn dp vt dcu noaposctb hp thn
ey xn lh v n it nu lh sju6
[odyab ll d nn doc lhj tlg hp lh podybstb, bpoxy,
podyurbthjl, njo su tlg hp .v.v.
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5:
Nn vt dcu el cl lh grjphct, njnmol, ica doc9 nn vt dcu
cl ac9 podyab el cl v nn vt dcu cl dy rl elg mt
n phl tl trolg podyab ec elg pcgablt Y>, 2Q.
Urolg nu trn hp th slg sjdcsmury, ihc dp trulg gcjl gcj al
nhl v at ica doc d nn vt dcu tsda tlg ihllg v arlg ec
tl hp th.
Nu trn hp thal nhl ^jdcsmury n selg nhto ]JA ec
elg vt dcu nhb nhl lh vc lgutrjlg. Pt dcu podyab selg d njo su
tlg hp n phc trl nn vt dcu el cl v nn nht ml el da tlg
el cl nj vt dcu v tlg suy gca nj slg cl t Y72, 77, 78Q.
Ihllg hp thmn xcl tnj it nu ^jdcsmury ph thun rt lhcu
vo tlh nht el cl v nu trn nj nn nht l. It qu iho st ih
llg hp th nj vc phibo njo su vc nlg at nht l N lhlg ihn
lhju tlh nht vt d v phlg php nhto nho vt dcu n ihllg hp th
vc slg ihn lhju(mlg:.::) Y07Q,it qun o tc tl s3.>72GHz,
ey dp vc : aa
/5
BA
J
M
N
Hlh :.26 It nu al nhl ^jdcsmury
J6 Dp hp thclM6 Dp hp ththon vt dcu xpN6 Mat ica doc
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5=
Mlg :.::6 lh hlg nu trn v ha dlg N l ihllg hp th
vc slg nj vt dcu njo su lboprbl.
Udthlh phl (phl ihc dlg) phnjibo
(g/`t=)
suy gcatl hcu(em)
lboprbl Grjphct N (Ujnbtydbl)
N (Udlulg)
:;; 2:.= 8.> ;.0
:;; 2:.= :2.; :.0
:;; 2:.= :7.: :.3
:;; 0;.2 :2.5 =.>
:;; =;.2 7.0 =.3
:;; =;.2 8.: >.:
:;; 0;.2 =7.> >.>
:;; 2:.= >.7 5.;
:;; 8; :7.5 2.5
:;; >5.: :;.> 7.:
:;; 8; 0.5 7.>
:;; =>.2 :0.2 7.5
:;; 0;.2 :;.0 8.;
:;; 8;.; =3.= 8.3
Uit qunho thy ihllg hp thnj vt dcu nl phthun thlh
phl v tdnht l el cl trolg nu trn noaposctb.
Url n s]J^ icu al nhl ^jdcsmury, Woo ^boi Nhcl jle Ejc Gcd
Dbb n p elg nh to ]JA trolg ec X (8.= :=.5 GHz) n thlh
phl d sc thu tclh doc B, podybstb n gcj nlg mlg njnmol el cl
ljlotumb Y70Q. Pt dcu noaposctb n ey =.3> aa hp th 3;% llg
dlg. Ihc dp phlnnh n nh to tnn vt dcu [R hjy B[ xp l
njnmol el cl ljlo da tlg ihllg hp thv da gca ey vt dcu
Y07, 72Q.
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5>
:.=.5. Nu trn hp thslg cl tj dp (nu trn Fjuajll)
Nu trn hp thllg dlg slg elg j dp n it nu tnn vt
dcu cl ac, vt dcu tn hlg scl ac hon t tha ihn lhju to
thlh lhlg dp vt dcu n tlh nht cl, tihn lhju la xbl i, jl xbl
trl mat ica doc (hlh:.0).
Ihc mn xvc slg truyl quj dp th lht sn phl xat phl
(>- llg dlg phl x) v truyl quj phl nl dc ([>llg dlg truyl
quj). Zu trlh nn tcj mn xtruyl quj nn dp vt dcu llg dlg nj l
smtl hjo mlg = nnh6 hp thv tl xllg dlg. Uuy lhcl lu dp
u tcl n tlh nht phl xslg cl tnjo sgy phl tn elg, e
tlh nht cl v tlh nht tv el cl nj tlg dp phc n ica sot
nht nh.Lha tn gcVcebi selg nu trn j dp nhto ]JA trolg
ec = :8 GHz trl n snoaposctb lhj bpoxy v nn ht t, ht st tv
nht cl ac. Ac dp n tlh nht cl tha, hscl ac, el cl v
gc trttha ihn lhju n tn elg trct tcu at ec tl sxn lh Y:>, :5,
:2, 2;Q. Nu tn tlh nht el cl n m tr elg zcnzjn gca thcu
ihllg phl xmn xcl t.
tlg hcu sut hp th nj vt dcu, nu trn hp thj dp n
thct ithlh icu nhp ll trl mat Y>:Q. It nu hp thmat elg
Hlh :.06 Nu trn hp thj dp
m
jDp (:):::
Dp (=)===
Dp (>)>>>
LlID
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55
nhp ll nl arlg gn tc nj tcj mn xvc slg. Inh thn nj nn lh
nhp ph thun vo mn slg (Hlh :.7). Uuy lhcl, nu trn to nhp nh
thnh hp ihc gcj nlg nn ta hp th, c vc nn hsl ph, nn dp vt
dcu n mtr to thlh anh nlg hlg nj = hjy lhcu dp trct tcumn
xY25, 8=Q. Pt dcu hp thn nu trn j dp n tlh tol tc u nho
nu trn ;= dp vt dcu, ey tc u nj tlg dp phthun vo tlh nht t
v tlh nht cl ac nj vt dcu tlg dp Y2=, 8;Q. Uuthbo tlh nht cl v
tnj tlg dp th ac dp phc t ey xn lh ihc vt dcu ac to
anh nlg hlg tlg hshp thlhcu dl.
Eo ac dp vt dcu n tlh nht cl v tihn lhju ll ec tl s
nlg hlg hp thnj tlg dp ihn lhju. Eo , it nu hp thj dp
thnh hp nhto ]JA n ec hp thrlg Y5=Q.
:.>. N ^ D UHRSU NH UO PU DCR H[ UH ^LG
CL UGCA UHCR IHLLG [HU HCL NJ ]JEJ]
:.>.:. Lguyl dhot lg nj c rjejr v sphl xslg cl ttrl
mat ica doc.
BA
M
Ll ID
Hlh :.76 It nu j dp elg nhp ll trl matJ - Dp nht tl hjo cl ac hp thelg xpM - Dp nht tl hjo t
J
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52
Zu trlh truyl slg v phl xBW nj rjejr n a ttrolg hlh
:.8. Mn xBW n truyl c tc p vo mat ica doc phl hc qujy
trdc c rjejr, slg phl hc n thd slg phl xhon tcj lhcu x.
Hlh:.86 Zu trlh truyl (j) v phl x(m) slg rjejr
Ihc tcj pht xp vo mat vt dcu sn hcl tlg phl xslg
trl mat vt dcu. Llg dlg nj tcj phl xphthun nhyu vo ecl
tnh phl xhcu elg, tn d phthun vo hlh elg vgn tc nj mat
phl x. Gn phl xhcu elg t gc trnn c ihc mat phl xd at
phlg (hlh :.3). Zu trlh phl xqujy trdc vtr mjl u nj nn mn x
cl tt lht phc quj = dl phl x. Zu trlh truyl slg trolg ihlg gcjl
sda tl hjo llg dlg, tcj mn xBW trvc rjejr phc n nlg
xn lh c rjejr n thlhl mct v nlg mn xcl tqujy trdc
ph thun vo ecl tnh phl xhcu elg. Gc trllg dlg tc thcu nj
mn xcl t qujy tr dc rjejr lhl mct d thlg slhy nj c.
Lgy ljy, i thut s n lg elg nh to nn c rjejr n lhy
njolhlg gcc hl pht hcl nj rjejr vc an tcu n ecl tnh phl xhcu
elg d
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50
At hcl tlg ihn xy rj ihc mn xBW p vo mat ica doc s
to rj slg djl truyl trl mat ica doc v n pht xqujy dc tc lg
mcl nj ica doc. y d hcl tlg lhcu xslg. Zu trlh lhcu xslg
xy rj trlmat ica doc n lg mcl ihlg dcl tn. Mat ica doc d
vt dcu el cl tt, qu trlh djl truyl BW trl mat ica doc tul thbo
phlg trlh Ajxwbdd. Uhbo Ajxwbdd, tlg vbnto cl trlg svulg gn
vc mat ica doc v t gc trnn c tc iholg nnh /5 tlh tmat
phl xvtlg nn vbnt ttrlg t gc trnn c trl mat ica doc.
Pbntor cl trlgtrl mat ica doc
Pbntor cl trlgvulg gn matica doc t gc trnn c
Pbntor cl cl trlg solg solg mat ica doc mlg ;, B1;
^phl nn mat vt dcu ectn lg nj cl trlg
Hlh :.36 Gn phl xv sphl xBA trl mat vt dcu
Hcl tlg phl xBW trl > mat
Hcl tlg phl xBW trl = mat
Hcl tlg phl xBW trl mat
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57
Hlh :.:;6cl, ttrlg nj slg cl ttn lg trl mat ica doc
Zu trlh djl truyl BW trl mat da phl nn vt dcu. ca m
phl nn alh lht d tc nn mnlh nj vt dcu (v enlh ay mjy, hlh
:.::, :.:=) v tc tc v tr ly phtrj nn tcjmn x- tcj lhcu x. Uuy lhcl,
phlg trlh Ajxwbdd nh p elg nho trlg hp slg lgjlg. @rbslbd
nhlg aclh rlg, gcj cl trlg v ttrlg nj BW dul n stlg h.
Urolg phl t trlg dul n at phl cl trlg v trolg phl cl
trlg dul n at phl ttrlg. Un elg nj cl, ttrlg BW davt
dcu mphl nn, aolbl phl nn tlg nj lvulg gn vc mat vt dcu .
Hlh :.::6 Hcl tlg phl nn nj vt dcu ec tn elg nj cl trlg
Zu trlh lhcu x ecl rj solg solg vc qu trlh phl x v thbo
lhcu hlg vgn nj tcj tc mlg gn nj tcj lhcu xtc nn mnlh vt
dcu (hlh :.:=). Nn tcj lhcu x n pht rj tc nn lg mcl vt dcu
Pbnto cltrlg B1;
Pbntor ttrlg (H) solg solg mat ica doc, H1ajx
Pbntor ttrlg vulg gn matica doc n gc trH1;
Pbntor ttrlg (H) trl matica doc.
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58
(nlh nlh ay mjy) thbo lhcu hlg ihn lhju v gn tcj lhcu xmlg
gn tcj tc.
Hlh :.:=6Gn pht xnj tcj lhcu xtc mnlh vt dcu
Nn lghcl nu ihlg lh, llg dlg slg phl xvc rjejr
nhyu d eo lhlg tcj lhcu x.
:.>.=. N sd thuyt nj vt dcu hp thslg cl t
Url m at vt dcu ica doc dul n cl, t trlg nj slg djl
truyl. Pbnto ttrlg vulg gn vc mat ica doc, vbnto ttrlg dul
solg solg vc mat v t gc trnn c trl mat. Ihc phdl mat
ica doc at dp vt dcu hp ththon nht cl acsda mcl c llg
dlg t trlg hon llg dlg cl trlg nj slg djl truyl el l
gca nlg slg phl hc Y0Q. At ihn, ihc n dp vt dcu cl ac v
vt dcu ttrl mat sdagca qu trlh phl xtrv v tlg ihllg
tl xmn xcl t. Ihllg hp thllg dlg slg phthun vo tlh
nht cl v tlh nht tnj vt dcu.
Ucj tc Ucj lhcu x
m
j Ucj lhcu x
Ucj phl x
Ucj tc
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53
:.>.>. Lguyl tn nhto vt dcu hp thslg cl t
Pt dcu hp thslg rjejr (]JA) n nhto rj vc an nh da
gca spht hcl nj hthlg trclh st rjejr. Nn doc ]JA n tn elg da
gca v trct tcu llg dlg BW mlg nn vt dcu n tlh nht tl hjo llg
dlg cl t dl6 tl hjo cl hon tl hjo t Y>=, 7:Q. Ulh nht tl hjo
cl, tnj vt dcu phthun vo tl snj BW v phthun vo hlg s
cl ac tlg c (]) hon gc trcl tha tlg c (
]) nj vt dcu.
Mn xBW p vo mat vt dcu sn hcl tlg phl xhon lhcu x
qujy trdc. Pt dcu ]JA n tn elg gca thcu tc j ihllg phl xv
pht xtrdc nj mn xBW. Lguyl tn trct tcu llg dlg nj mn x
trl mat vt dcu n ;= hlg6 trct tcu llg dlg thon cl trlg.
Eo , vt dcu s elg nh to ]JA n ih llg tl hjo cl hon t
trlg dl.
Uhbo nn it quphl tnh cl ttrlg trl mat vt dcu phl x
th ttrlg nj tcj lhcu xt gc trnn c trl mat nj vt dcu phl
xvnlg nj cl trlg t gc trnn c tc iholg nnh /5 (6
ecmn slg) (hlh :.:5).
Hlh :.:>6 cl, ttrlg nj slg cl ttrl mat vt dcu
cl trlgt nnc tciholg nnh/5
Utrlgt nnctrl mat vt dcu
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2;
Nu trn nj vt dcu hp thBW n ej trl n stl hjo cl v
tl hjo tnj vt dcu v n n tlh sju6
:.
Pt dcu tl hjo cl d nn vt dcu n gc trtl hjo tjlnjo n
t nnh mat phl x iholg nnh d /5 Y52, 08, 7:Q. Nn vt
dcu tl hjo cl thlg d6
-Nn nht cl ac n mct n tjlnjo.
-Nn vt dcu noaposctb trl n snn vt dcu podyab hu n v
nn nht l el cl lh grjphct, mt ica doc.
-
Nn podyab el cl.
-Nn nht cl dy rl.
=. Pt dcu tl hjo td nn vt dcu n gc trtl hjo tnjo n ph
dl m at nj vt dcu phl x Y>=, 55Q. Nn vt dcu tl hjo t
thlg d nn vt dcu n tlh nht st tn gc trttha tlg c
njo v tl hjo elg Beey dl. Nn vt dcu tl hjo tthlg d6
-
Hp ica @b telg mt.
-
[hn njnmolyd @b t
-
Nn `brct t6 spclbd, gjrlbt ...
Lgoc rj, gca thcu llg dlg nj nn tcj phl x, at elg nu
trn ihn nj vt dcu BWJ d nu trn xp. Nn nu trn xp nj vt dcu
BWJ thlg selg nhto nnvt dcu ]JA n mn slg ec.
:.5. PU DCR H[ UH^LG CL U]JEJ]
]JA n p elg trolg dlh vn lgutrjlg hp thslg rjejr n tn
elg mjo phmat ica doc da suy gca ihllg phl hc nj mn x
cl tpht rj tc rjejr. Nn n ca v tlh nht qujl trlg nj dp ph
hp thslg cl t6
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2:
-Ul sda vcn6 Ec tl sa vt dcu ejo lg hp th, n th
l hon j lh hp th9 hp thec rlg.
-
n tlh nj vt dcu6 Pt dcu lg lht hon vt dcu noaposctb.
-
Ihllg hp thnj vt dcu6 ey tc thcu v hshp th
tc j nj vt dcu .
-Ulh nht n d v ml ac trlg nj vt dcu.
-
Uihc hon ihc dlg rclg nj vt dcu.
-
Ihllg gcj nlg to vt dcu6 Pt dcu nl phc egcj nlg.
Url n s nn n tlh v lg elg nj vt dcu ]JA, lgc tj
phl doc vt dcu ]JA thbo lhcu nnh6
[hl doc vt dcu hp thslg thbo n nhhp th6
Pt dcu hp ththlg6 Pt dcu l nht, vt dcu noaposctb
Pt dcu hp thnhlg6 Pt dcu l nht, vt dcu noaposctb
[hl doc vt dcu BWJ thbo nn elg an nh selg6
Nn alg ph
Nn vt dcu ta elg ihc n
Nn vt dcu elg ihc xp
[hl doc thbo ec tl da vcn nj vt dcu BWJ6
Pt dcu BWJ ec tl rlg, ec tl hp.
Pt dcu BWJ l ec tl, j ec tl
Pt dcu BWJ ec tl srjeco (H@/PH@)
Pt dcu BWJ ec tl slg nn lgl RH@
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2=
Pt dcu BWJ ec tl vc slg (slg na)
Pt dcu BWJ ec tl slg aa.
Uu thbo an nh s elg, lhcu doc vt dcu hp th slg n
lghcl nu nhto v an tcu d nhto rj vt dcu lhn ihllg hp th
njo v ec hp thrlg. Eo ac nht nhejo lg nlg hlg tc at tl s
xn lh, eo j snn ]JA d vt dcu noaposctb thp lha a rlg
ec tl hp thY08Q. Lgoc rj, nu trn hp thj dp n selg nh
to vt dcu hp thn ec tl rlg.
Eo phl dl nn c rjejr da vcn trolg ec tl vc slg (= :8GHz)
v nhn at st da vcn tc ec tl dl nl ll nn h]JA u hp th
trolg ec tl trl. n ca nj dp alg sl phd nht iht ll nu trn
hp thslg selg nho dp sl phnhyu d nu trn nlg hlg it hp
nu trn j dp Y:;, >:, 5>Q.
Hsl hp thmn xcl tnhto trl ll lhj tlg hp lh lhj
bpoxy, [R, jnrydcn .v.v. n sl trn tcp trl ll ica doc. Nn nu thp
thcl hon hp th tselg trolg thlh phl sl lh d nn pcgablt.
Lha lghcl nu nj Fohl W. Mole nhto sl hp thslg cl tec
X trl n slhj [R v nht l v nn sc el cl d sc thp ihlgg,
grjphct n inh thn lg ilh > 2 a, ec iholg :;; - :;;;a, dp
sl phn ey < :aa nho hshp thiholg -:;eM tc tl s:;GHz.
Nn nht hp thcl hon hp thttrl n sd nn sc ica doc lh
nn doc @b t, Lc, No n ihc dlg rclg dl el l ihc dlg nj alg
ph llg ihlg thnh hp ihc p elg nho nn phlg tcl mjy. gca
ihc dlg nj vt dcu, nlg lghljlo n selg nh to nn nht hp
thelg pcgablt. Moybr v nlg s elg nn vt dcu st telg sc n
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lg ilh 4;,:a v nhcu ec xp x:;a d nht l nho hslv dp
ph n h s hp th l -=;eM Y:2, =0Q. At phlg php gca ihc
dlg dp phd selg podyab el cl thjy thnho nn nu tica doc.
Nn podyab el n tlh nht tl hjo cl njo n mdble vc nht to alg
s elg da h it elh nj alg ph. Uuy lhcl tlh nht el cl nj
podyab el thp hl nn pcgablt ica doc ll hcu quhp thnj vt dcu
thp hl. Lha lghcl nu nj Ljrjlg s elg podyab el cl
podypyrod it hp vc `brct tnhto alg phn hshp th-:; -:2eM
trolg ec X vc ey :;aa Y25Q. [hlg php ihn gca ihc dlg
alg d selg nn vt dcu `brct thjy thnho pcgablt ica doc. Pt dcu `brct
n hsttha njo, ihc dlg rclg lhhl v enhto hl nn ht ica
doc, at ihn nn ht `brct n inh thn ljlo n xu hlg it tthlh nn
ht dl hl lhlg n nu trn xp. Uuy lhcl, tlh nht tl hjo cl nj vt
dcu `brct thp hl hl so vc ica doc ll nn vt dcu `brct n selg it
hp vc podyab el to thlh elg hp thnlg hlg Y55, 2:Q. Nn vt dcu
`brct thlg n selg d nn spclbd AlVl `brc