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| 研究生： |
華人慶 Ren-ching Hua |
|---|---|
| 論文名稱： |
新型準八木天線及可改變極化天線之設計及射頻辨識應用 Design of New Quasi-Yagi Antenna and Polarization-agile Antenna and the Applications in RFID |
| 指導教授： |
馬自莊
Tzyh-Ghuang Ma |
| 口試委員: |
劉馨勤
Hsin-Chin Liu 楊成發 Chang-Fa Yang 李學智 Hsueh-Jyh Li 戴念華 none |
| 學位類別： |
碩士 Master |
| 系所名稱： |
電資學院 - 電機工程系 Department of Electrical Engineering |
| 論文出版年： | 2007 |
| 畢業學年度： | 95 |
| 語文別： | 英文 |
| 論文頁數： | 62 |
| 中文關鍵詞： | 準八木天線 、可電氣控制極化天線 、射頻辨識系統 |
| 外文關鍵詞： | Quasi-Yagi, Reconfigurable patch antenna, RFID |
| 相關次數： | 點閱：254 下載：11 |
| 分享至: |
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本論文探討三種不同的天線，分別是二種應用在射頻辨識系統與5 GHz的無線區域網路頻段的準八木天線、及一種用於射頻辨識系統的可電氣控制極化天線，在論文第二章和第三章中將詳細探討這兩種天線的架構及設計原理，並且從實驗的結果可以驗證出天線具有小型化、寬頻、中等增益值以及高的前後比等特性。在第四章裡，我們設計出一種用於射頻辨識系統的可電氣控制寬頻天線。我們利用四個二極體的導通方式去產生出二種線性極化、右旋極化及左旋極化。並且從實驗結果可以得到此款天線具有寬頻、高前後比以及不錯的圓極化結果。
本論文的三種天線是使用電磁數值模擬軟體HFSS分析與模擬，再於本校無線通訊與電磁相容技術研發中心之無反射實驗室進行測量，來驗證所設計的天線效能。
In this thesis, two quasi-Yagi antennas are designed for applications in UHF RFID band and the 5 GHz-WLAN band, respectively. The antenna geometry, design concept, simulated and measured results are carefully discussed in Chapter 2 and Chapter 3. The experimental results demonstrate that the proposed antennas feature a compact size, wide impedance bandwidth, moderate gain, and excellent front-to-back ratio. In Chapter 4, a reconfigurable patch antenna for RFID system applications is proposed. By utilizing four PIN diodes on a microstrip patch, the proposed antenna can be operated in two linear polarized states as well as left and right hand circular polarized states. The antenna demonstrates a wide impedance bandwidth, excellent front-to-back ratio and acceptable axial ratio as operated in circular polarization.
The analysis and design in this thesis is based on the full-wave electromagnetic solver Ansoft HFSS and the experimental equipment in the Communication and Electromagnetic Technology Center in NTUST are used to verify the performance of the proposed antennas.
References
[1] K. Finkenzeller, RFID Handbook: Fundamentals and Applications in Contactless Smart Cards and Identification, 2nd edition, John Wiley & Son, England, 2003.
[2] http://www.epcglobalinc.org/index.html.
[3] L. Ukkonen, L. Sydänheimo, and M. Kivikoski, “Read range performance comparison of compact reader antennas for a handheld UHF RFID reader [Supplement, Applications & Practice],” IEEE Commun. Mag., vol. 45, pp. 24-31, April 2007.
[4] N. Kaneda, W. R. Deal, Y. Qian, R. Waterhouse, and T. Itoh, “A Broad-Band planar Quasi-Yagi Antenna,”IEEE Trans. Antennas Propagat., vol. 50, no. 8, pp. 1158–1160, Aug. 2002.
[5] K. M. K. H. Leong, Y. Qian, and T. Itoh, “Surface Wave Enhanced Broadband planar Antenna for Wireless Applications,” IEEE Microw. Wireless Compon. Lett., vol. 11, no. 2, pp. 62–64, February. 2001.
[6] Y. Qian, W. Deal, N. Kaneda, and T. Itoh, “Microstrip-fed quasi-Yagi antenna with broadband characteristics,” Electron. Lett., vol. 34, no. 23, pp. 2194-2196, Nov. 1998.
[7] R.-C. Hua and T.-G. Ma, “A Printed Dipole Antenna for Ultra High Frequency (UHF) Radio Frequency Identification (RFID) Handheld Reader,” IEEE trans. Antennas Propagat., submitted for publication.
[8] R. L. Li, G. DeJean, M. M. Tentzeris, and J. Laskar “Novel Multi-Band Broadband Planar Wire Antennas for Wireless Communication Handheld Terminals,” in IEEE AP-S Int. Symp. Dig., vol. 3, pp. 44-47, Columbus OH, June 22-27 2003.
[9] M. Ali, T. Sittironnarit, H.-S. Hwang, R. A. Sadler, and G. J. Hayes, “Wide-Band/Dual-Band Packaged Antenna for 5-6GHz WLAN Application,” IEEE Trans. Antennas Propagat., vol. 52, no. 2, pp. 610–615, Feb. 2004.
[10] Y. Qian and T. Itoh, “A broadband uniplanar microstrip-to-CPS transition,” in Proc. 1997 Asia Pacific Microwave Conf., pp. 609–612, Dec. 1997.
[11] C.-W. Wang, T.-G. Ma, and C. F. Yang, “Miniaturized branch-line coupler with harmonic suppression for RFID applications using artificial transmission lines,” to appear in 2007 IEEE International Microwave Symp.
[12] S. Fang, "A novel polarisation diversity antenna for WLAN application," in IEEE AP-S Dig., vol. 1, Salt Lake City, Utah, USA, July 2000, pp. 282-285.
[13] Warren L. Stutzman, Gary A. Thiele, Antenna Theory and Design, John Wiley & Sons, Inc., 2nd Edition, 1997.
[14] Girish Kumar. K. P. Ray, Broadband Microstrip Antennas, Artech House, 2003.
[15] D. H. Schaubert, F. Farrar, A. Sindoris, and S. Hayes, “Microstrip Antenna with Frequency Agility and Polarization Diversity,” IEEE Trans. Antennas and Propagat., pp. 1074-1075AP-29, 1981.
[16] S. Gao, A. Sambell and S. S. Zhong, “Polarization-Agile Antennas,”IEEE Trans. Antennas and Propagat., vol. 48, no. 3, pp. 28–37, June. 2006.
[17] F. Yang and Y. Rahmat-Samii, “A reconfigurable patch antenna using switchable slots for circular polarization diversity,” IEEE Microwave Wireless Compon. Lett., vol. 12, pp. 96–98, Mar. 2002.
[18] M. K. Fries, M. Grani, and R. Vahldieck, “A reconfigurable slot antenna with switchable polarization,” IEEE MicrowaveWireless Compon. Lett., vol. 13, pp. 490–492, Nov. 2003.
[19] P. M. Haskins, P. S. Hall, and J. S. Dahele, “Polarization-agile active patch antenna,” Electron. Lett., vol. 30, pp. 98–99, Jan. 1994.
[20] Y. Sung. T. Jang. and Y. Kim, “A Reconfigurable Microstrip Antenna for Switchable Polarization,” IEEE Microw. Wireless Compon. Lett., vol. 14, no. 11, pp. 534–536, November. 2004.
