Design and Experimental Demonstration of Non-Foster Active Absorber

被引：39

作者：

Mou, Jinchao ^{[1
]}

Shen, Zhongxiang ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2017年 / 65卷 / 02期

关键词：

Microwave absorber; negative impedance converter (NIC); non-Foster active absorber; BAND; FREQUENCY; JAUMANN; THIN;

D O I：

10.1109/TAP.2016.2639012

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：

This paper presents a non-Foster active absorber with ultrawideband and extremely low profile, which can effectively break the Rozanov limit for passive absorbers. The design concept is explained using transmission line theory and the matching process is interpreted by plotting field distributions. To facilitate the design and optimization of the active absorber, a cosimulation method and simple guidelines are proposed. Measured results show that the absorber can achieve a wide bandwidth with at least -10 dB reflectivity from 150 to 900 MHz and its thickness is only 1/100 lambda(0) at the lowest operating frequency. This is the first experimental demonstration of the non-Foster active absorber.

引用

页码：696 / 704

页数：9

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