A Novel Unidirectional Dual-Band Circularly-Polarized Patch Antenna

被引：33
|
作者：
Chen, Can-Hui [1 ]
Yung, E. K. N. [1 ]
机构：
[1] City Univ Hong Kong, Dept Elect Engn, Kowloon, Hong Kong, Peoples R China
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2011年 / 59卷 / 08期
关键词：
Circular polarization; dual-band; patch antenna; unidirectional antenna; BROAD-BAND; SLOT ANTENNA; DESIGN;
D O I：
10.1109/TAP.2011.2158961
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 novel unidirectional dual-band circularly -polarized (CP) patch antenna is proposed in this communication. By loading a pair of L-shaped stubs outside the truncated patch, an outer mode and an inner mode are excited respectively. Therefore, dual-band CP operations are generated. The dual CP bandwidths are 3% and 4%. Because the meandering probe feed technique is used, the proposed antenna enjoys the wide impedance bandwidths of 8% for the lower band and 19% for the upper band. The peak gains within the dual bands are 9 dBic and 8.2 dBic and its height is 0.086 lambda. Besides, the front-to-back ratios are about 20 dB.
引用
收藏
页码：3052 / 3057
页数：7
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