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Broadband EM-wave absorber based on integrated circuit concept

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2 Author(s)
Y. Kotsuka ; Dept. of Commun. Eng., Tokai Univ., Kanagawa, Japan ; M. Amano

A broadband EM-wave absorber based on the structural concept of microwave integrated circuit is proposed. Following the fundamental principle and construction, the method of converting the actual microwave circuit into the integrated circuit type absorber is clarified. The problem of fine control of the resistance on the circuit is resolved by changing the configuration of a unit circuit element in a cross shape. Broadband matching characteristics with an absorption band 1.9 times as broad as a conventional Salisbury screen absorber with resistance and capacitance, and 2.6 times as a typical Salisbury absorber are obtained. The thickness of the present absorber is further reduced by introducing a ferrite material, while keeping almost the same broadband matching frequency.

Published in:

Microwave Symposium Digest, 2003 IEEE MTT-S International  (Volume:2 )

Date of Conference:

8-13 June 2003