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

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 constr...

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Veröffentlicht in:	IEEE transactions on antennas and propagation 2014-02, Vol.62 (2), p.945-949
Hauptverfasser:	Pan, Wenbo, Huang, Cheng, Chen, Po, Ma, Xiaoliang, Hu, Chenggang, Luo, Xiangang
Format:	Artikel
Sprache:	eng
Schlagworte:	Antenna measurements Antennas Applied sciences Exact sciences and technology Fabry-Perot cavity Gain gain enhancement Ground plane High gain Holes Incident waves Noise levels partially reflecting surface Patch antennas radar cross section reduction Radar cross sections Radiocommunications Radiolocalization and radionavigation Reflector antennas Telecommunications Telecommunications and information theory
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Beschreibung
Zusammenfassung:	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.
ISSN:	0018-926X 1558-2221
DOI:	10.1109/TAP.2013.2291008