Gain Enhancement of a Wideband Fabry-Perot Cavity Antenna Using Sparse Array Feed

被引：1
|
作者：
Almutawa, Ahmad T. [1 ,2 ]
Capolino, Filippo [2 ]
机构：
[1] PAAET, Dept Elect Engn Technol, Kuwait, Kuwait
[2] Univ Calif Irvine, Dept Elect Engn & Comp Sci, Irvine, CA 92697 USA
来源：
2020 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION AND NORTH AMERICAN RADIO SCIENCE MEETING | 2020年
关键词：
Fabry-Perot cavity (FPC) antenna; partially reflecting surface (PRS); sparse array; wideband antenna; RADIATION;
D O I：
10.1109/IEEECONF35879.2020.9329953
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：
This paper demonstrates the use of a 2-D sparse array feeding as a primary excitation source of a wideband planar Fabry-Perot Cavity (FPC) antenna for gain enhancement. The antenna is constructed from a thick partially reflective surface (PRS) mounted on top of an air-filled cavity. The antenna is fed by a 2 x 2 array of magnetic dipoles (slots) located on the ground plane. A proper choice of the array interelement distance gives a maximum gain of 18.1 dB and a 3 dB gain-bandwidth of 36.4%, which is remarkable for an FPC antenna. Results show a significant enhancement in the broadside gain by employing sparse array feeding with 2.7 times improvement in the gain-bandwidth product as compared to the conventional single element excitation source.
引用
收藏
页码：165 / 166
页数：2
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