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Wideband Rcs Reduction Of Vivaldi Antenna Using Electromagnetic Band Gap Absorbing Structure

Qian Chen,Hongtao Zhang,Xiaolin Zhang,Mouping Jin,Wei Wang

2017 INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION (ISAP 2017)（2017）

Cited 9|Views6
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Abstract
In this letter, a Vivaldi antenna with wideband RCS reduction using Electromagnetic Band Gap Absorbing Structure (EBGAS) is designed. The EBGAS cuveres on the antenna ground. The EBGAS constructed by split rectangular ring loaded with resistors and dielectric spacer. Compared with the metal ground Vivaldi antenna, RCS has reduced about 15 dB in the frequency band of 4-18 GHz and almost without gain loss. This antenna has wideband scanning ability, can be used for phased array antenna stealth design.
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Key words
Electromagnetic Band Gap Absorbing Structure (EBGAS), Vivaldi antenna, Radar Cross Section (RCS)
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