Ultra-thin tunable microwave absorber using liquid crystals

被引：20

作者：

Fusco, V. F. ^{[1
]}

Cahill, R. ^{[1
]}

Hu, W. ^{[1
]}

Simms, S. ^{[1
]}

机构：

[1] Queens Univ Belfast, Inst Elect Commun & Informat Technol, Belfast BT3 9DT, Antrim, North Ireland

来源：

ELECTRONICS LETTERS | 2008年 / 44卷 / 01期

关键词：

D O I：

10.1049/el:20082191

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：

A dynamically adaptive radar absorber is described which is based on a periodic array of microstrip patches that are printed on a 500 mu m-thick liquid crystal substrate. The measured reflectivity of the structure is less than -38 dB with a 200 MHz -10 dB bandwidth at 10.19 GHz when a +4 DC bias is applied. It is shown that a 34 dB reduction in signal loss occurs when the bias voltage is increased to 20 V.

引用

页码：37 / U47

页数：2

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