A cross polarization suppression of circular patch array absorber with perturbation elements

IEICE Electronics Express

Ryosuke Suga¹  Osamu Hashimoto¹  Daisuke Kitahara¹  Kiyomichi Araki² 

[1] Department of Electrical Engineering and Electronics, Aoyama Gakuin University;Department of Electrical and Electronics Engineering, Tokyo Institute of Technology

关键词: wave absorber;    circular patch;    perturbation elements;    bandwidth;    polarization conversion;   

DOI  :  10.1587/elex.14.20171071

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

It is known that perturbation elements realize sub-resonance and they can be applied to a circular patch array absorber for improving its bandwidth. The considerable polarization conversion, however, occur due to the perturbation elements. In this paper, the polarization conversion is suppressed by applying the rotation symmetry arrangement of the elements. As the result, the polarization conversion level less than −30 dB was measured with maintenance of three times bandwidth of the absorber without perturbation elements.

【 授权许可】

CC BY