DUAL-BAND CIRCULARLY POLARIZED MICROSTRIP ANTENNA WITH SMALL FREQUENCY RATIO

被引:31
|
作者
Liao, W. [1 ]
Chu, Q. -X. [1 ]
机构
[1] South China Univ Technol, Sch Elect & Informat Engn, Guangzhou 510640, Guangdong, Peoples R China
关键词
D O I
10.2528/PIERL10052101
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 compact single-feed dual-band circularly polarized (CP) microstrip antenna is evaluated numerically and experimentally. The dual-band performances with small frequency ratio (about 1 : 1.1) are achieved by a circular patch and a narrow annular-ring, which have small difference in radius. The CP characteristics are achieved by an unequal cross-slot embedded in the circular patch and two orthogonal linear stubs spurred from the annular-ring. The antenna is easy to fabricate. Good agreement is obtained between measured and simulated results.
引用
收藏
页码:145 / 152
页数:8
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