IEICE Electronics Express
Online ISSN : 1349-2543
ISSN-L : 1349-2543
LETTER
A cross polarization suppression of circular patch array absorber with perturbation elements
Daisuke KitaharaRyosuke SugaKiyomichi ArakiOsamu Hashimoto
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2018 Volume 15 Issue 2 Pages 20171071

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Abstract

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.

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© 2018 by The Institute of Electronics, Information and Communication Engineers
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