天線工程期中報告 southern taiwan university of science and technology 論文研討 : s. w....

天線工程期中報告

Southern Taiwan UniversitySouthern Taiwan University of Science and Technologyof Science and Technology

論文研討 : S. W. Lee and Y. Sung,

“Compact Frequency Reconfigurable Antenna for LTE/WWAN Mobile Handset Applications,” IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, VOL. 63, NO. 10, OCTOBER 2015

報告人 : 碩研電子一甲 MA430219 許家耀

2

Outline

3

該天線主體尺寸為 36.5×10mm2 ，具有簡單的結構，此天線主要由輻射體和兩個 PIN diodes ，來共振出六個工作頻帶。當 PIN diode #1 和 #2 是在 ON 和 OFF 時，會產生 LTE700/2300/2500 的工作頻率，當 PIN diode #1 和 #2是在 OFF 和 ON 時，諧振頻率可以涵蓋 GSM850/900 的頻段，當兩個 PIN diodes 都在 ON 的狀態時，諧振頻率分別會在 GSM1800/1900/UMTS 。

摘要

參考文獻 Compact Frequency Reconfigurable Antenna for LTE/WWAN Mobile Handset Applications

4

Parameter Unit(mm)

L1 36.5

天線設計


5

天線設計


6

天線設計


7

天線設計


8

天線設計


9

天線設計


10

天線設計


11

天線設計


12

天線實作


13

天線實作


14

天線實作


本文所提出天線的工作頻帶是調節兩個 PIN diodes 的偏置狀態，而無需修改任何的輻射元件，此天線應用於 LTE/WWAN 操作頻帶。而在工作頻帶的頻率上也具有良好的輻射特性。因此，該天線可以應用在多頻段的移動式手機。

15

結論


本文的天線設計架構簡單、運用了手機的概念，以及使用電容與電感和二極體來匹配電路，進而達到所要求的工作頻帶，讓我了解到電路匹配可以使結構較簡單並可以縮小尺寸，使天線較具有特色。

16

心得

[1] K. C. Lin, C. H. Lin, and Y. C. Lin, “Simple printed multiband antenna with novel parasitic–element design for multistandard mobile handset applications,” IEEE Trans. Antennas Propag., vol. 61, no. 1, pp. 488–491, Jan. 2013.

[2] C. T. Lee and K. L. Wong, “Planar monopole with a coupling feed and an inductive shorting strip for LTE/GSM/UMTS operation in the mobile phone,” IEEE Trans. Antennas Propag., vol. 58, no. 7, pp. 2479–2483, Jul. 2010.

[3] J. H. Lu and Y. S. Wang, “Internal uniplanar antenna for LTE/GSM/UMTS operation in a tablet computer,” IEEE Trans. Antennas Propag., vol. 61, no. 5, pp. 2841–2846, May 2013.

[4] F. H. Chu and K. L. Wong, “Internal coupled-fed dual-loop antenna integrated with a USB connector for WWAN/LTE mobile handset,” IEEE Trans. Antennas Propag., vol. 59, no. 11, pp. 4215–4221, Nov. 2011.

[5] Y. L. Ban, J. H. Chen, S. Yang, J. L. W. Li, and Y. J. Wu, “Low-profile printed octa-band LTE/WWAN mobile phone antenna using embedded parallel resonant structure,” IEEE Trans. Antennas Propag., vol. 61, no. 7, pp. 3889–3894, Jul. 2013.

[6] K. L. Wong and T. W. Weng, “Small-size triple-wideband LTE/WWAN tablet device antenna,” IEEE Antennas Wireless Propag. Lett., vol. 12, pp. 1516–1519, Nov. 2013.

17

參考文獻


[7] K. L. Wong and M. T. Chen, “Small-size LTE/WWAN printed loop antenna with an inductively coupled branch strip for bandwidth enhancement in the tablet computer,” IEEE Trans. Antennas Propag., vol. 61, no. 12, pp. 6144–6151, Dec. 2013.

[8] J. H. Lu and J. L. Guo, “Small-size octaband monopole antenna in an LTE/WWAN mobile phone,” IEEE Antennas Wireless Propag. Lett., vol. 13, pp. 548–551, Mar. 2014.

[9] Y. Sung, “A frequency-reconfigurable antenna for internal mobile handset

applications,” Microw. Opt. Technol. Lett., vol. 56, no. 6, pp. 1366–1371,Jun. 2014.

[10] D. A. Lee and Y. Sung, “Reconfigurable PIFA/loop antenna for mobile handset applications,” Microw. Opt. Technol. Lett., vol. 56, no. 9, pp. 2034–2037, Sep. 2014.

[11] J. H. Lee and Y. Sung, “Reconfigurable hexa-band planar inverted-F antenna using a pin diode for mobile handset,” Microw. Opt. Technol. Lett., vol. 55, no. 8, pp. 1926–1928, Aug. 2013.

[12] Y. L. Ban, S. C. Sun, P. P. Li, J. L. W. Li, and K. Kang, “Compact eightband

frequency reconfigurable antenna for LTE/WWAN tablet computer applications,” IEEE Trans. Antennas Propag., vol. 62, no. 1, pp. 471–475, Jan. 2014. 18

參考文獻


[13] S. W. Lee, H. S. Jung, and Y. J. Sung, “A reconfigurable antenna for LTE/WWAN mobile handset applications,” IEEE Antennas Wireless Propag. Lett., vol. 14, pp. 48–51, Sep. 2015.

[14] K. L. Wong and C. T. Lee, “Wideband surface-mount chip antenna for eight-band LTE/WWAN slim mobile phone application,” Microw. Opt. Technol. Lett., vol. 52, no. 11, pp. 2554–2560, Nov. 2010.

[15] Y. K. Park and Y. Sung, “A reconfigurable antenna for quad–band mobile handset applications,” IEEE Trans. Antennas Propag., vol. 60, no. 6, pp. 3003–3006, Jun. 2012.

[16] Y. Li, Z. Zhang, W. Chen, Z. Feng, and M. F. Iskander, “A switchable matching circuit for compact wideband antenna designs,” IEEE Trans. Antennas Propag., vol. 58, no. 11, pp. 3450–3457, Nov. 2010.

[17] X. Zhao, J. Tak, and J. Choi, “Worst-case estimate of envelope correlation

coefficient for small MIMO mobile antennas below 1 GHz,” J. Electromagn. Eng. Sci., vol. 15, no. 1, pp. 44–52, Jan. 2015.

19

參考文獻


天線工程期中報告 southern taiwan university of science and technology 論文研討 : s. w....

Documents