Novel Single-feed Proximity Coupled Wideband Circularly Polarized Slot Antenna

被引：0
|
作者：
Tong, Kin-Fai [1 ]
Lacotte, Guillaume [1 ]
机构：
[1] UCL, London WC1E 6BT, England
来源：
APMC: 2008 ASIA PACIFIC MICROWAVE CONFERENCE (APMC 2008), VOLS 1-5 | 2008年
关键词：
D O I：
暂无
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 wide impedance and axial ratio bandwidth single-feed method for circular polarized slot antenna is proposed. Impedance and axial ratio bandwidth of approximately 20% have been achieved. The circularly polarized antenna operates at its fundamental TM(11) mode is fed by a simple U-shaped microstrip line structure through proximity coupling. Two 100 Q impedance transformers have been used to align the impedance and axial ratio bandwidths. Simulations show that the source current, which flows in the annular section of the U-shaped feed, induces a circulating current in the circular slot radiator which contribute the circular polarized radiation. Both currents flow in the same direction. Experimental and simulation results of the antennas are presented and discussed.
引用
收藏
页码：466 / 469
页数：4
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