臺灣博碩士論文加值系統

本論文旨在研究具有圓極化功能之諧波抑制天線，透過於接地面埋入π型槽孔諧振器來抑制高階諧振模態，可以應用於無線區域網路WLAN 5.8 GHz (5.725 GHz～5.825 GHz)，以及DSRC 5.9 GHz (5.85 GHz～5.925 GHz)。
本論文首先提出一使用共平面波導(coplanar waveguide,CPW)饋入之圓極化天線(提出天線一)，其整體大小為30 mm × 30 mm × 0.762 mm。在圓形貼片天線中增加兩個四分之一圓周長的弧形擾動元件，因此激發出圓極化頻率(5.85 GHz～5.925 GHz)，此設計選擇使用電感性共平面波導饋入之技術，於末端加入一個π型之槽孔諧振器，使圓極化貼片天線與槽孔諧振器之間透過耦合激發。提出天線一之10-dB頻寬與圓極化頻寬分別為660 MHz (5.67 GHz～6.33 GHz)以及75 MHz (5.85 GHz～5.925 GHz)，圓極化操作頻帶之最大增益以及天線效率分別為5.5 dBic以及84.1%。
提出天線二之基本架構與提出天線一相似，在不改變其結構的情況下增加圓極化頻寬，此設計於接地面額外增加一月牙型之槽孔(擾動元件)，使得圓極化頻寬可增加至160 MHz（5.72 GHz～5.88 GHz），能夠完全涵蓋WLAN 5.8 GHz（5.72 GHz～5.85 GHz）之操作頻帶。其10-dB頻寬為850 MHz (5.7 GHz～6.55GHz)，最高增益與天線效率分別為3.9 dBic與81%。

This paper focuses on new type antennas of harmonic suppression with circular polarization. The π-shape resonator can be used to suppress the high-order frequency. They can be applied to wireless local area networks WLAN 5.8 GHz (5.725 GHz to 5.825 GHz) and DSRC 5.9 GHz (5.85 GHz to 5.925 GHz).
A coplanar waveguide-fed circularly polarized antenna with harmonic suppression is initially proposed (proposed antenna 1). The antenna size is 30 mm× 30 mm× 0.762 mm. By adding two quadrant arc-shaped perturbed elements into the circular patch antenna, a circularly polarized (CP) band is excited from 5.85 GHz to 5.925 GHz. The π-shape resonator is loaded at the end of coplanar waveguide feed and coupled with the circularly polarized patch antenna. The measured 10-dB bandwidth and CP bandwidth were 660 MHz (5.67 GHz～6.33 GHz) and 75MHz (5.85 GHz～5.925 GHz), respectively. The measured maximum antenna gain and antenna efficiency were 5.5 dBic and 84.1%, respectively.
The design of proposed antenna 2 is based on the architecture of proposed antenna 1. In order to increase the CP bandwidth without changing the structure of the resonator, a crescent slot is embedded into the ground plane. This design can increase the CP bandwidth to 5.72 GHz～5.88 GHz, which can cover the WLAN 5.8 GHz band (5.72 GHz～5.85 GHz). The measured 10-dB bandwidth was 850 MHz (5.7 GHz～6.55 GHz). The measured maximum antenna gain and antenna efficiency were 3.9 dBic and 81%, respectively.

摘要
Abstract
誌謝
目錄
圖目錄
表目錄
縮寫及符號對照表
第一章 緒論
1.1前言
1.2文獻探討
1.3內容提要
第二章 應用於WLAN 5.9 GHz之圓極化諧波抑制天線
2.1概述
2.2天線結構介紹
2.3設計流程
2.4重要參數分析與模擬
2.4實測結果與討論
第三章 應用於WLAN5.8GHz之圓極化諧波抑制天線
3.1天線結構
3.2天線設計比較
3.3重要參數與模擬分析
3.4實測結果與討論
第四章 總結論
附件一 等效電路模擬
附件二 天線諧波之電流分佈圖
參考文獻

[1]V. Radisic, Y. Qian, and T. Itoh, “Novel architectures for high- efficiency amplifiers for wireless applications,” IEEE Trans. Microw. Theory and Tech., vol. 46, no. 11, pp. 1901-1909, Nov. 1998.
[2]R.A.Rahim, S.I.S.Hassan, F.Malek, and M.N.Junita, “A 2.45 GHz circular patch antenna with harmonic suppression for wireless power transmission,” IEEE Colloquium on Humanities, Science & Engg. Rese., 2012.
[3]Y. J. Ren, M. F. Farooqui, and K. Chang, “A compact dual-frequency rectifying antenna with high-orders harmonic-rejection,” IEEE Trans. Antennas Propag., vol. 55, no. 7, pp. 2110-2113, Jul. 2007.
[4]C. T. Chuang and S. J. Chung, “Synthesis and design of a new printed filtering antenna,” IEEE Trans. Antennas Propag., vol. 59, no. 3, pp. 1036– 1042, Mar. 2011.
[5]C. T. Chuang and S. J. Chung, “New printed filtering antenna with selectivity enhancement,” inProc. 39th Eur. Microw. Conf., vol. 9, pp. 747–750, 2009.
[6]W. J. Wu, Y-Z. Yin, S-L. Zuo, Z-Y. Zhang, and J-J. Xie, “A new compact filter-antenna for wireless communication systems,” IEEE Antenna Wireless Propoga. lett., vol.10, pp.1131-1134, 2011.
[7]W. J. Wu, C. Wang and Q. F. Liu, “Design of a compact filter-antenna using DGS structure for modern wireless communication systems,” The 5th IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2013.
[8]Z. Qiang, “Simple structure high selectivity dual-band filtering antenna,” in Proc. 8th Int. Symp. Comput. Intell. Design (ISCID), Hangzhou, China, pp. 561-598, Dec. 2015.
[9]Lin, C.-K. and S.-J. Chung, “A compact filtering microstrip antenna with quasi-elliptic broadside antenna gain response,” IEEE Antennas Wireless Propag. Lett., vol. 10, 381-384, 2011.
[10]C.-K. Lin and S.-J. Chung, “A filtering microstrip antenna array,” IEEE Trans. Microw. Theory Tech., vol. 59, no. 11, pp. 2856-2863, Nov. 2011.
[11]C. X. Mao, S. Gao, Y. Wang, F. Qin, Q. X. Chu, “Multi-mode resonator-fed dual polarized antenna array with enhanced bandwidth and selectivity,” IEEE Trans. Antennas Propag., vol. 63, no. 12, pp. 5492-5499, Dec. 2015.
[12]H.-T. Hu, F.-C. Chen, J.-F. Qian, and Q.-X. Chu, “A differential filtering microstrip antenna array with intrinsic common-mode rejection,” IEEE Trans. Antennas Propag., vol. 65, no. 12, pp. 7361-7365, Dec. 2017.
[13]Y. Zhang, X. Y. Zhang, and B. Li, “Dual-band filtering antenna with controllable frequencies and bandwidths,” IEEE 5th Asia-Pacific Conference on APCAP, Feb. 2017.
[14]X.-Y. Zhang, Y. Zhang, Y.-M. Pan, and W. Duan, “Low-profile dual-band filtering patch antenna and its application to LTE MIMO system,” IEEE Trans. Antennas Propag., vol. 65, no. 1, pp. 103-113, Jan. 2017.
[15]Zhi Hao Jiang and Douglas H. Werner, “A compact wideband circularly polarized co-designed filtering antenna and its application for wearable devices with low SAR,” IEEE Trans. Antennas Propag., vol. 63, no. 9, Sep. 2015.
[16]Z. H. Jiang, M. D. Gregory, and D. H. Werner, “Design and experimental investigation of a compact circularly polarized integrated filtering antenna for wearable biotelemetric devices,” IEEE Trans. Biomed. Circuits Syst., vol. 10, no. 2, pp. 328-338, Apr. 2016.
[17]W. Tian, J. Zhang, F. Zhang, and W. Chen, “Compact dual-band CPW-fed filtering antenna for WLAN applications,” 8th International Symposium on ISCID, May. 2016.
[18]A. Abbaspour-Tamijani, J. Rizk, and G. Rebeiz, “Integration of filters and microstrip antennas,” IEEE Antennas Propag. Symp. Digest, pp. 874-877, Jul. 2002.
[19]C.-Y. Liou and S.-G. Mao, “Miniaturized shark-fin rooftop antenna with integrated DSRC communication module for connected vehicles,” General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS), Nov. 2017.
[20]X. Zhang and L. Zhu, “Dual-Band High-Gain Circular Patch Antenna Working in Its TM11 and TM12 Modes”, IEEE Trans. Antennas Propag., March 2018.
[21]T Ijiguchi, D. Kanemoto, K. Yoshitomi, K. Yoshida, A. Isbikawa, S Fukagawa, N. Kodama, A. Tahira, and H. Kanaya, “Circularly polarized one-sided directional slot antenna with reflector metal for 5.8-GHz DSRC operations,” IEEE Antennas and Wireless Propagation Letters, vol. 13, pp. 778-781, 2014.
[22]Taoglas/DCP.5900[Online]Available :
http://www.taoglas.com/product/12124mm-5-9ghz-dsrc-ceramic-patch-antenna/
[23]J. P. Thakur and J. Park, “An advanced design approach for circular polarization of microstrip antenna with unbalanced DGS feed line,” IEEE Antennas Wireless Propag. Lett., vol. 5, no. 1, pp. 101-103, Dec. 2006.
[24]A. Kumar, M. Kumar, G. Parmar, “Dual wide band circularly polarized circular patch antenna with two half parasitic rings and defected ground structure,” Proceedings of Communication Control and Intelligent Systems (CCIS), pp. 40-44, November 2015.
[25]Chithra, S. Pallavi, and A. A. Prince, “RF MEMS-based biosensor for pathogenic bacteria detection,” BioNanoScience, vol. 3, no. 3, pp. 321–328, Sep. 2013.
[26]Ye-Da Chien, 2004. “Design, Simulation and Fabrication of Miniaturized RF-MEMS Filter,” Master's Thesis of Department of Mechanical Engineering, Hsinchu: National Chiao Tung University.