Test with ConfidenceTM

• Deliversaccurateandreliableantennagainmeasurements

• EachhornmeetsthestandardsofNRLReportNo.4433

• Entireseriescovers0.32to170GHzfrequencyrange

• Ruggedconstruction

MI-212 Family of Standard Gain Horns

Introduction The MI-212 Family of Standard Gain Horns are usedin antenna test range applications, and have beendesigned todeliveraccurateand reliableantennagainmeasurements.

MI-212 Family of Standard Gain Horns (SGH) areavailable to cover the frequency range from 0.32 to170 GHz. The horns are constructed of aluminum forwaveguide sizes from WR-2300 through WR-62, andfrom brass for waveguide sizes from WR-51 throughWR-7. They are plated prior to painting to preventcorrosion.

GainAccuracy:

• MI-212-0.32throughMI-212-1.7±0.5dB• MI-212-2.2throughMI-212-110±0.3dB

ApplicationsTheprimaryapplicationforthesehornsisexperimentalgain determination of an antenna by the substitutionmethod. Gain measurements with the standard gainhorn and antenna under test are made by alternatelyconnecting the two antennas to a matched receiver.Received power levels are equalized either with theprecisionIFattenuatorinthewiderangereceiver,orwithaprecisionvariableRFattenuator.

Eachstandardgainhornincludesagainchartdepictingthehorn’sgainacrossthefrequencybanditcovers.

AssemblyTheMI-212StandardGainHornproductfamilyisdividedinto several models. Most standard gain horns areavailableintwoconfigurations:

• MI-212StandardGainHorn(only)• MI-210StandardGainHorn+Coax-to-WaveguideAdapter(pre-assembled)

AdditionalAssemblyComponents:

• MI-211Coax-to-WaveguideAdapters(CGWA)1• MI-212FStandardGainHornMountingFlanges2• MI-212MStandardGainHornMountingCages2• MI-212APStandardGainHornAbsorberPanels2

For frequenciesup to90GHz,MI-211FamilyofCoaxtoWaveguideAdapters (CWGA)areavailable tomatewiththeMI-212SGH.AnMI-211CWGAcanbeorderedpre-assembledtotheMI-212SGHbyspecifyingmodelMI-210.

MI-212M Mounting Flanges and MI-212AP AbsorberPanelsarenotavailable forMI-212-2.2StandardGainHornsandbelow.

Thecompletemodelnumber,asshownontheStandardGain Horn nameplate, contains a dash number thatdesignatesthefrequencyrange.

1 MI does not provide Coax to Waveguide Adapters beyond 90 GHz.2 MI-212F, MI-212M and MI-212AP models are shipped ready to install, with all fasteners and installation instructions

Specifications

Model Frequency Range (GHz) Nominal Gain (dBi)Nominal Beamwidth (deg) Weight - lbs (kg)*

Waveguide TypeE-Plane H-Plane Net Shipping

MI-212-0.32-RS 0.32 - 0.49 10.0 56 56 79 (36) 129 (54) WR-2300MI-212-0.32 0.32 - 0.49 15.5 27 30 234 (106) 284 (129) WR-2300

MI-212-0.35-RS 0.35 - 0.53 10.0 56 56 62 (28) 112 (51) WR-2100MI-212-0.35 0.35 - 0.53 15.5 27 30 210 (95) 260 (118) WR-2100

MI-212-0.41-RS 0.41 - 0.625 10.0 56 56 38 (17) 88 (40) WR-1800MI-212-0.41 0.41 - 0.625 15.5 27 30 145 (66) 195 (88) WR-1800

MI-212-0.49-RS 0.49 - 0.75 10.0 56 56 31 (14) 71 (32) WR-1500MI-212-0.49 0.49 - 0.75 15.5 27 30 100 (45) 150 (68) WR-1500MI-212-0.64 0.64 - 0.96 15.5 27 30 68 (31) 100 (45) WR-1150MI-212-0.75 0.75 - 1.12 15.5 27 30 28 (13) 38 (17) WR-975MI-212-0.96 0.96 - 1.45 13.7 35 40 15 (7) 25 (11) WR-770MI-212-1.1 1.12 - 1.70 15.5 27 30 12 (5.4) 22 (10) WR-650MI-212-1.4 1.45 - 2.20 15.5 27 30 8 (3.6) 16 (7) WR-510MI-212-1.7 1.70 - 2.60 15.5 27 30 5.6 (2.5) 14 (6) WR-430MI-212-2.2 2.20 - 3.30 15.5 27 30 4 (1.8) 8 (3.6) WR-340MI-212-2.6 2.60 - 3.95 18.0 22 23 5.5 (2.5) 9 (4.1) WR-284MI-212-3.3 3.30 - 4.90 18.0 22 23 3.2 (1.1) 8 (3.6) WR-229MI-212-3.9 3.95 - 5.85 18.0 22 23 2.5 (1.1) 6 (2.7) WR-187MI-212-4.9 4.90 - 7.05 18.0 22 23 1.7 (0.8) 4 (1.8) WR-159MI-212-5.8 5.85 - 8.20 22.1 12 13 5 (2.3) 9 (4.1) WR-137MI-212-7.0 7.05 - 10.0 18.0 22 23 0.9 (0.4) 3 (1.5) WR-112MI-212-8.2 8.20 - 12.40 22.1 12 13 2.3 (1.0) 6 (2.7) WR-90MI-212-10 10.0 - 15.0 24.7 9 10 2.6 (1.2) 6 (2.7) WR-75MI-212-12 12.4 - 18.0 24.7 9 10 1.4 (0.6) 5 (2.3) WR-62MI-212-15 15.0 - 22.0 24.7 9 10 2.7 (1.2) 6 (2.7) WR-51MI-212-18 18.0 - 26.5 24.7 9 10 1.5 (0.7) 5 (2.3) WR-42MI-212-22 22.0 - 33.0 24.7 9 10 0.9 (0.4) 3 (1.5) WR-34MI-212-26 26.5 - 40.0 24.7 9 10 0.6 (0.3) 3 (1.5) WR-28MI-212-33 33.0 - 50.0 24.7 9 10 0.4 (0.2) 3 (1.5) WR-22MI-212-40 40.0 - 60.0 24.7 9 10 0.3 (0.2) 1 (0.5) WR-19MI-212-50 50.0 - 75.0 24.7 9 10 0.2 (0.1) 1 (0.5) WR-15MI-212-60 60.0 - 90.0 24.7 9 10 0.2 (0.1) 1 (0.5) WR-12MI-212-75 75.0 - 110 24.7 9 10 0.1 (0.05) 1 (0.5) WR-10MI-212-90 90.0 - 140 24.7 9 10 0.1 (0.05) 1 (0.5) WR-8MI-212-110 110 - 170 24.7 9 10 0.1 (0.05) 1 (0.5) WR-7

Model Number DefinitionExample: MI-212-0.49“MI-212”representstheStandardGainHornproductline.Thenumber“0.49”representsthelowerendofthestandardfrequencyrange0.49to0.75GHz.

Somelowfrequencygainhornmodelsareavailablein2physicalsizes,withthephysicallysmallerversioncarryingthedesignation“RS”attheend,whichstandsfor“reducedsize”.

Specifications (continued)Model Suffix

Cover Flange SGH Dimensions - in. (cm)* Cage Dimensions - in. (cm)*Type or Equivalent Material Geometry L W H D Base

-0.32-RS CPR 2300F Aluminum Rectangle 36.1 (92) 33.0 (84) 26.8 (68) 16.8 (43) 15.8 x 27.3 (40 x 69)-0.32 CPR 2300F Aluminum Rectangle 57.6 (146) 86.8 (220.3) 65.5 (166) 16.8 (43) 15.8 x 27.3 (40 x 69)

-0.35-RS CPR 2100F Aluminum Rectangle 31.4 (80) 30.5 (78) 24.6 (63) 16.0 (41) 16.0 x 25.0 (41 x 64)-0.35 CPR 2100F Aluminum Rectangle 62.0 (157) 73.5 (186) 54.5 (138) 16.0 (41) 16.0 x 25.0 (41 x 64)

-0.41-RS CPR 1800F Aluminum Rectangle 26.5 (67) 25.7 (65) 20.7 (53) 13.7 (35) 12.5 x 21.5 (32 x 55)-0.41 CPR 1800F Aluminum Rectangle 47.0 (119) 67.7 (172) 51.1 (130) 13.7 (35) 12.5 x 21.5 (32 x 55)

-0.49-RS CPR 1500F Aluminum Rectangle 26.2 (67) 22.0 (56) 18.3 (46) 13.0 (33) 14.0 x 19.0 (36 x 48)-0.49 CPR 1500F Aluminum Rectangle 48.0 (122) 48.7 (124) 36.2 (92) 13.0 (33) 14.0 x 19.0 (36 x 48)-0.64 CPR 1150F Aluminum Rectangle 33.8 (86) 43.6 (111) 32.9 (84) 12.6 (32) 9.3 x 15.0 (24 x 38)-0.75 CPR 975F Aluminum Rectangle 32.3 (82) 32.9 (83) 24.4 (62) 9.8 (25) Ø16.0 (41)-0.96 CPR 770F Aluminum Rectangle 23.2 (59) 22.2 (56) 16.5 (42) 7.4 (19) Ø12.0 (31)-1.1 CPR 650F Aluminum Rectangle 21.7 (55) 22.2 (56) 16.5 (42) 7.4 (19) Ø10.0 (25.4)-1.4 CPR 510F Aluminum Rectangle 15.5 (39) 19.3 (49) 14.6 (37) 6.5 (17) Ø9.0 (23)-1.7 CPR 430F Aluminum Rectangle 14.4 (37) 14.8 (37) 11.0 (28) 6.4 (16) Ø8.0 (20)-2.2 CPR 340F Aluminum Rectangle 10.4 (26) 12.8 (32) 9.7 (25) 6.3 (16) Ø9.0 (23)-2.6 MDL F284ABC Aluminum Round 16.7 (42) 13.1 (33) 9.7 (25) 6.7 (17) Ø8.0 (20)-3.3 CPR 229F (AL) Aluminum Rectangle 12.4 (32) 11.3 (29) 8.8 (22) 6.7 (17) Ø8.0 (20)-3.9 MDL F187ABC Aluminum Round 12.1 (31) 8.8 (22) 6.6 (17) 6.7 (17) Ø8.0 (20)-4.9 FTC 159.310-3 Aluminum Round 9.3 (24) 7.7 (20) 6.0 (15) 6.7 (17) Ø8.0 (20)-5.8 MDL F137ABC Aluminum Round 20.0 (51) 11.7 (30) 8.7 (22) 6.7 (17) Ø8.0 (20)-7.0 M3922/54-012 Aluminum Square 7.5 (19) 5.3 (14) 4.0 (10) 6.7 (17) Ø8.0 (20)-8.2 M3922/54-014 Aluminum Square 14.0 (36) 8.0 (20) 6.0 (15) 6.7 (17) Ø8.0 (20)-10 M3922/70-017 Aluminum Square 16.9 (43) 7.0 (18) 5.7 (14) 6.7 (17) Ø8.0 (20)-12 M3922/70-020 Aluminum Square 14.0 (36) 6.2 (16) 5.1 (13) 6.7 (17) Ø8.0 (20)-15 M3922/70-022 Brass Square 11.4 (29) 4.7 (12) 3.8 (10) 6.7 (17) Ø8.0 (20)-18 M3922/70-027 Brass Square 10.7 (27) 4.2 (11) 3.5 (8.9) 6.7 (17) Ø8.0 (20)-22 FTC 34.310-BRASS Brass Square 8.2 (21) 3.2 (8.1) 2.6 (6.6) 6.7 (17) Ø8.0 (20)-26 M3922/68-001 Brass Square 7.0 (18) 2.9 (7.4) 2.4 (6.1) 6.7 (17) Ø8.0 (20)-33 M3922/67-001 Brass Round 5.8 (15) 2.3 (5.8) 2.0 (5.1) 6.7 (17) Ø8.0 (20)-40 M3922/67-007 Brass Round 4.7 (12) 1.9 (4.8) 1.5 (3.8) 6.7 (17) Ø8.0 (20)-50 M3922/67-002 Brass Round 3.1 (7.9) 1.6 (4.1) 1.3 (3.3) 6.7 (17) Ø8.0 (20)-60 M3922/67-003 Brass Round 3.2 (8.1) 1.4 (3.4) 1.2 (2.9) 6.7 (17) Ø8.0 (20)-75 M3922/67-010 Brass Round 2.5 (6.4) 1.1 (2.6) 0.9 (2.2) 6.7 (17) Ø8.0 (20)-90 M3922/67B-M08 Brass Round 2.1 (5.3) 0.9 (2.3) 0.8 (1.9) 6.7 (17) Ø8.0 (20)-110 M3922/67B-M06 Brass Round 1.7 (4.3) 0.8 (1.9) 0.7 (1.6) 6.7 (17) Ø8.0 (20)

*All weights and dimensions are approximate Ø = Diameter

1125 Satellite Blvd, Suite 100 | Suwanee, Georgia 30024-4629 USAPH: +1-678-475-8300 | FX: +1-678-542-2601All products and their specifications subject to change without notice.© Copyright 2013, all rights reserved, MI Technologies DS-212-1.0/02/13

MI-212 Standard Gain Horn

MI-211 Coax-to-Waveguide Adapter

(Available up to 90 GHz)

MI-212M Mounting Cage

MI-212M Mounting Cage

MI-212AP Absorber Panel

MI-212F Mounting Flange

For Standard Gain Horn Frequencies 2.6 GHz and Higher

For Standard Gain Horn Frequencies 2.2 GHz and Below

MI-210 Standard Gain Horn + Coax-to-Waveguide Adapter

Standard Gain Horn Product Flow

Standard Gain Horn Assembly

For Standard Gain Horn Frequencies 2.6 GHz and Higher

For Standard Gain Horn Frequencies 2.2 GHz and Below