High Efficiency Cavity-Backed Log-Periodic Antenna

被引：0
|
作者：
Ha, Jaegeun [1 ]
Filipovic, Dejan S. [1 ]
机构：
[1] Univ Colorado, Dept Elect Comp & Energy Engn, Boulder, CO 80309 USA
来源：
2014 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM (APSURSI) | 2014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：
High efficiency uni-directional log-periodic antenna with low-profile cavity-backing is presented. The proposed concept offers a novel approach for transforming a broadband bi-directional aperture to a uni-directional antenna. To eliminate lossy materials inside the cavity, a parasitic cross bow-tie slot with controlled coupling and dissipation is introduced at the bottom of the cavity. The numerical and experimental results show VSWR < 3:1, gain > 1.5dBi and average efficiency of 82% from 0.55GHz to 6GHz.
引用
收藏
页码：1318 / 1320
页数：3
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