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Proceedings Paper

Adaptive radar absorbing structures with active FSS
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Paper Abstract

A brief description of the theory of passive and active absorbers is presented followed by details of an experimental study into a new design of adaptive absorber. The absorber is a single-layer planar structure based upon the topology of a Salisbury screen, but in which the conventional resistive layer is replaced by an active frequency selective surface (FSS) controlled by pin diodes. The resulting structure has superior reflectivity-bandwidth characteristics compared to conventional passive absorbers of corresponding thickness. Experimental results are presented and compared to those obtained from a transmission line model, and show that the reflectivity response of the absorber can be dynamically controlled over the frequency band from 9-13GHz

Paper Details

Date Published: 13 November 2002
PDF: 10 pages
Proc. SPIE 4934, Smart Materials II, (13 November 2002); doi: 10.1117/12.468647
Show Author Affiliations
Alan Tennant, Univ. of Sheffield (United Kingdom)
Barry Chambers, Univ. of Sheffield (United Kingdom)

Published in SPIE Proceedings Vol. 4934:
Smart Materials II
Alan R. Wilson, Editor(s)

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