Tunable thin radar absorber using artificial magnetic ground plane with variable backplane

被引：47

作者：

Simms, S. ^{[1
]}

Fusco, V. ^{[1
]}

机构：

[1] Queens Univ Belfast, Inst Elect Commun & IT, High Frequency Labs, Belfast BT3 9DT, Antrim, North Ireland

来源：

ELECTRONICS LETTERS | 2006年 / 42卷 / 21期

关键词：

D O I：

10.1049/el:20061989

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Experimental verification is provided of the frequency tuning capability of a low-profile radar absorber material based on the high impedance surface principle. The absorber consists of an artificial magnetic ground plane with surface mount resistors interconnecting a textured surface of square patches. It is shown that by displacing the ground plane of the textured surface substrate from 0 to 0.04 lambda(0) better than -15 dB return loss, -42 dB best case, from 3.55 to 5.47 GHz can be obtained when the surface is illuminated by a linearly polarised signal at normal incidence to the surface. In addition, the response of the surface in terms of its axial ratio performance under circular polarised signal excitation at normal incidence is investigated for a fixed ground displacement.

引用

页码：1197 / 1199

页数：3

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