Study on RCS Reduction of Patch Array Using Switchable Absorption/Transmission Surface

Shinya KITAGAWA  Ryosuke SUGA  Osamu HASHIMOTO  Kiyomichi ARAKI  

IEICE TRANSACTIONS on Electronics   Vol.E99-C   No.7   pp.805-808
Publication Date: 2016/07/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.E99.C.805
Type of Manuscript: BRIEF PAPER
RCS,  radar absorber,  transmission surface,  radome,  

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Radar cross section (RCS) of a patch array antenna is reduced using a switchable absorption/transmission surface. The switchable surface performs as between a radar absorber and transmission surface using diodes at 9GHz. The switchable surface was applied to the radome of a patch array and its radiation pattern and RCS reduction were evaluated. The gain and the radiation pattern with the radome was equivalent to that without the radome. The RCS reduction with the radome was 25dB compared to that without the radome.