A Low-RCS and High-Gain Partially Reflecting Surface Antenna

Author

Wenbo Pan ; Cheng Huang ; Po Chen ; Xiaoliang Ma ; Chenggang Hu ; Xiangang Luo

Author_Institution

State Key Lab. of Opt. Technol. on Nano-Fabrication & Micro-Eng., Inst. of Opt. & Electron., Chengdu, China

Volume

62

Issue

2

fYear

2014

fDate

Feb. 2014

Firstpage

945

Lastpage

949

Abstract

We propose a novel design to reduce the radar cross section (RCS) and enhance the gain of a patch antenna by using partially reflecting surface (PRS). The PRS consists of two layers of metallic patterns on both sides of a dielectric slab. The metallic pattern on the bottom side is utilized to construct Fabry-Perot resonance cavity with ground plane of a patch antenna, while it is designed to absorb most of the incident wave on the top side. The PRS can enable the patch antenna to simultaneously achieve high gain and low RCS. Measurement results show that the antenna gain is enhanced by about 6.5 dB at 11.5 GHz, and its RCS is dramatically reduced in a broad frequency range from 6 to 14 GHz, compared with the traditional patch antenna without the PRS.

Keywords

Fabry-Perot resonators; antenna radiation patterns; microstrip antennas; radar cross-sections; slabs; Fabry-Perot resonance cavity; RCS; dielectric slab; frequency 6 GHz to 14 GHz; ground plane; high-gain antenna; metallic patterns; partially reflecting surface antenna; patch antenna; radar cross section; Antenna measurements; Gain; Patch antennas; Radar cross-sections; Reflector antennas; Fabry-Perot cavity; gain enhancement; partially reflecting surface; radar cross section reduction;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2013.2291008

Filename

6665095