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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 許博文 | |
dc.contributor.author | Tzung-Yi Li | en |
dc.contributor.author | 李宗益 | zh_TW |
dc.date.accessioned | 2021-06-15T05:06:40Z | - |
dc.date.available | 2011-08-06 | |
dc.date.copyright | 2010-08-06 | |
dc.date.issued | 2010 | |
dc.date.submitted | 2010-07-26 | |
dc.identifier.citation | [1]C. A. Balanis, Antenna Theory-Analysis and Design. John Wiley& Sons, 2005, pp 70-78.
[2]Robert S. Elliott, “Antennas Theory and Design Revised Edition,” WILEY-INTERSCIENCE, 2003. [3]H. Morishita and K. Hirasawa, “Wideband circularly-polarized loop antenna,” Antennas and Propagation Society International Symposium, 1994, AP-S, Digest. [4]H. Morishita, K. Hirasawa, and T. Nagao, “Circularly polarized wire antenna with a dual rhombic loop,” IEE Proc.,-Microw. Antennas Propag., Vol. 145, No. 3, June 1998. [5]R. L. Li, V. F. Fusco, and H. Nakano, “Circularly polarized open-loop antenna, ” IEEE Trans. Antennas Propag., vol. 51,No. 9, Sep. 2003. [6]M. Sumi, K. Hirasawa, and Song Shi, “Two rectangular loops fed in series for broadband circular polarization and impedance matching,” IEEE Trans. Antennas Propag., Vol. 52, No. 2, Feb. 2004. [7]R. L. Li, G. D. Jean, J. Laskar, and M. M. Tentzeris, “Investigation of circularly polarized loop antennas with a parasitic element for bandwidth enhancement, ”IEEE Trans. Antenna Propag., vol. 53, NO. 12, Dec. 2005. [8]R. L. Li, B. Pan, A. N. Traille, J. Papapolymerou, J. Laskar, and M. M. Tentzeris, “Development of a cavity-backed broadband circularly polarized slot/strip loop antenna with a simple feeding structure,” IEEE Trans. Antennas Propag., Vol. 56, No. 2, Feb. 2008. [9]J. Y. Sze, K. L. Wong, and C. C. Hunag, “Coplanar waveguide-fed square slot antenna for broadband circularly polarized radiation,” IEEE Trans. Antennas Propag., vol. 51, Aug. 2003. [10]Y. B. Chen, X. F. Liu, Y. C. Jiao and F. S. Zhang, “CPW-fed broadband circularly polarized square slot antenna, ” Electron. Lett., vol. 42, Sep. 2006. [11]C. C. Chou, K. H. Lin and H. L. Su, “Broadband circularly polarized crosspatch-loaded square slot antenna, ” Electron. Lett., vol. 43, Apr. 2007. [12]J. Y. Sze, and C. C. Chang, “Circularly polarized square slot antenna with a pair of inverted-L grounded strips, ” IEEE Antennas Wireless Propag. Lett., vol. 7, 2008. [13]J. Y. Sze, J. C. Wang and C. C. Chang, “Axial-ratio bandwidth enhancement of asymmetric-CPW-fed circularly-polarised square slot antenna, ”Electron. Lett. Vol. 44 NO. 18, Aug. 2008. [14]C. Chen and E. K. N. Yung,”Dual-band dual-sence circularly-polarized CPW-fed slot antenna with two spiral slots loaded, ”IEEE Trans. Antennas Propag., vol. 57, No. 6, Jun. 2009. [15]S. Du and Q. X. Chu, “A CPW-fed broadband circularly-polarized square slot antenna with E-shaped slits in ground plane, ” Microwave Conference, 2009, EuMC 2009, European. [16]S. Fu, S. Fang, Z. Wang and X. Li, ”Broadband circularly-polarized slot antenna array fed asymmetric-CPW for L-band applications,” IEEE Antennas Wireless Propag., vol. 8, 2009. [17]K. L. Wong, C. C. Huang, and W. S. Chen, “Printed ring slot antenna for circular polarization,” IEEE Trans. Antennas Propag., Vol. 50, No. 1, Jan. 2002. [18]J. Y. Sze, C. I. G. Hsu, M. H. Ho, Y. H. Ou, and M. T. Wu, ”Design of circularly polarized annular-ring slot antennas fed by a double-bent microstripline,” IEEE Trans. Antennas Propag., Vol. 55, No. 11, Nov. 2007. [19]K. F. Hung, and Y. C. Lin, “Simulation of single-arm fractional spiral antennas for millimeter wave applications,” IEEE Antennas and propag. Society Int. Symp.,pp.3697-3700, 2006. [20]J. S. Row, “The design of a square-ring slot for circular polarization,” IEEE Trans. Antennas Propag., Vol. 53, No. 6, Jun. 2005. [21]K. F. Tong, and G. Lacotte, “Novel single-feed proximity coupled wideband circularly polarized slot antenna,” Microwave Conference, 2008. APMC 2008. Asia-Pacific. [22]T. Fukusako, R. Sakami and K. Iwata, “Broadband circularly polarized planar antenna using partially covered circular wide-slot and L-probe,” Microwave Conference, 2008. APMC 2008. Asia-Pacific. [23]S. L. Steven Yang, A. A. Kishk, and K. F. Lee, “Wideband circularly polarized antenna with L-shaped slot, ” IEEE Trans, Antennas Propag., vol. 56, No. 6, Jun. 2008. [24]X. Bao, and M. J. Ammann, ”Dual-frequency dual-sense circularly-polarized slot antenna fed by microstrip line, ” IEEE Trans. Antennas Propag., vol. 56, No. 3, Mar. 2008. [25]X. M. Qing and Y. W. M. Chia, “Circularly polarized circular ring slot antenna fed by stripline hybrid coupler,” IEE Electron. Lett., Vol. 35, No. 25, 1999. [26]R. P. Xu, X. D. Huang, and C. H. Cheng, “Broadband circularly polarized wide-slot antenna,” Microwave and Optical Technology Letters, Vol. 49, No. 5, May 2007. [27]J. W. Zhang, S. S. Zhong, and S. Q. Xu, “Compact broadband circularly polarized microstrip antenna,” Microwave and Optical Technology Letters, Vol. 48, No. 9, Sep. 2006. [28]Y. X. Guo, K. W. Khoo, and L. C. Ong, “Wideband circularly polarized patch antenna using broadband baluns,” IEEE Trans. Antennas Propag., Vol. 56, No. 2, Feb. 2008. [29]H. Schrank and S. V. Parehh, “Simple formulae for circular-polarization axial-ratio calculations,” IEEE Antennas and Propagation Magazine, Feb. 1991. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/46390 | - |
dc.description.abstract | 圓極化天線近年來被廣泛探討及應用,由於具有抑制干擾及降低多重路徑反射的特性,被普遍應用在無線通訊系統中。而許多不同實現的圓極化天線的設計陸續被提出,其中以共面波導饋入式的圓極化槽孔天線比較受到關注,因為具有寬頻、結構簡單、低成本、容易和其他主動元件作整合的好處。
本文中提出一種以非對稱共面波導饋入式的寬頻圓極化槽孔天線,非對稱地饋入的目的主要是想去微擾接地面上的電流分布,天線結構可以看成是將共面波導的訊號線饋入的平面和接地平面彎曲形成類似兩個迴圈。在共面波導傳輸線上加上串聯等效電路去做阻抗匹配,經由適當地去調整整個天線的參數,將可以達到寬頻圓極化的效果。 基於前面的設計概念,我們提出另一隻由微帶線饋入的寬頻圓極化槽孔天線,天線的外觀類似前面的設計,饋入位置選擇在電路板的邊緣,由於微擾結構使得電流分布能達到產生圓極化的條件。此隻天線的效能比起前者,具有更好的效能及更少的設計參數。 以上所提出天線具有良好的左手圓極化輻射場型,主瓣朝著+Z方向,且具有足夠頻寬以應用在無線通訊上且有抗雜訊效果,更進一步的模擬,實驗結果將在論文中仔細探討分析,以更了解此天線特性。 | zh_TW |
dc.description.abstract | An asymmetrical CPW-fed slot antenna with wideband circular polarization is proposed. The antenna has an asymmetrical feeding for the purpose of interfering with the current distribution on the ground. The antenna geometry is the combination of ground loop and signal loop. Besides, the CPW transmission line is attached with series stubs for impedance matching. By adjusting the parameters properly, a wide circular polarization operation bandwidth has been achieved.
Based on the above concept, A wideband circularly polarized antenna fed by a microstripline is also presented. It has the similar structure as the previous design and is fed from the edge of the substrate. Due to the perturbation configuration, a wide circular polarization bandwidth has been obtained. In this design, it has better performance and less design parameters. Both antennas have good LHCP radiations in the broadside direction. Moreover, the bandwidth is wide enough to mitigate the effect of interference in wireless communications. Design procedures, simulations, experiments are discussed and presented in the thesis. | en |
dc.description.provenance | Made available in DSpace on 2021-06-15T05:06:40Z (GMT). No. of bitstreams: 1 ntu-99-R97942064-1.pdf: 2313127 bytes, checksum: 722f986dbd1f83d92a7227c3c73fda22 (MD5) Previous issue date: 2010 | en |
dc.description.tableofcontents | 誌謝 ii
Abstract iii 中文摘要 iv Contents v List of Figures vii List of Tables xi Chapter 1 Introduction 1 1.1 Characteristics of circular polarization and literature survey 1 1.2 Motivation and various types of CP antenna 3 1.3 Chapter outline 7 Chapter 2 Analysis of Polarization Theory 13 2.1 Polarization 13 2.2 Polarization Loss Factor 19 Chapter 3 Asymmetrical CPW fed slot antenna with wideband circular polarization 21 3.1 Antenna Geometry and Design 21 3.2 Experimental and Simulated Results 30 3.3 conclusion 43 Chapter4 Wideband Circularly Polarized Slot Antenna Fed by Microstripline 44 4.1 Antenna geometry and design 44 4.2 Experimental and Simulated Results 47 4.3 Conclusion 58 Chapter 5 59 Appendix Simple Formula for Axial Ratio Calculation [28] 60 Reference 66 | |
dc.language.iso | en | |
dc.title | 寬頻圓極化槽孔天線 | zh_TW |
dc.title | Wideband Circularly Polarized Slot Antenna | en |
dc.type | Thesis | |
dc.date.schoolyear | 98-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 張道治,張知難,莊晴光,陳士元 | |
dc.subject.keyword | 非對稱饋入,圓極化,共面波導,槽孔天線, | zh_TW |
dc.subject.keyword | Asymmetrical feed,circular polarization,coplanar waveguides,slot antennas., | en |
dc.relation.page | 70 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2010-07-27 | |
dc.contributor.author-college | 電機資訊學院 | zh_TW |
dc.contributor.author-dept | 電信工程學研究所 | zh_TW |
顯示於系所單位: | 電信工程學研究所 |
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