WIDEBAND CIRCULARLY POLARIZED CAVITY-BACKED CROSSED LOOP ANTENNA

被引：3
|
作者：
Qu, Shi-Wei [1 ]
Chan, Chi Hou [1 ]
Xue, Quan [1 ]
机构：
[1] City Univ Hong Kong, State Key Lab Millimeter Waves, Dept Elect Engn, Kowloon, Hong Kong, Peoples R China
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2009年 / 51卷 / 07期
关键词：
cavity-backed antennas; circular polarization; wideband antennas;
D O I：
10.1002/mop.24406
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A circularly polarized cavity-backed crossed loop antenna is proposed in this article. The optimized overall dimensions of the antenna are 1.13 lambda(0) in diameter and 0.267 lambda(0) in height (lambda(0) is the free-space wavelength at the center frequency), and the circumference of one loop is 1.1 lambda(0). Measurements show that the proposed antenna features an 81% impedance bandwidth for SWR <= 2, a 40% bandwidth for axial ratio <= 3 dB, an average gain of 10 dBi, and stable radiation patterns over the whole band from 1.42 to 2.13 GHz. (C) 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1714-1718, 2009; Published online in Wiley Interscience (www.interscience.wiley.com). DOI 10.1002/mop.24406
引用
收藏
页码：1714 / 1718
页数：5
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