Highly Directive Leaky-Wave Antennas Based on PT-Symmetric Metasurfaces

被引：0

作者：

Hajizadegan, Mehdi ^{[1
]}

Zhu, Liang ^{[1
]}

Chen, Pai-Yen ^{[1
]}

机构：

[1] Univ Illinois, Dept Elect & Comp Engn, Chicago, IL 60680 USA

来源：

PROCEEDINGS OF THE 2019 INTERNATIONAL CONFERENCE ON ELECTROMAGNETICS IN ADVANCED APPLICATIONS (ICEAA) | 2019年

关键词：

parity-time (PT)-symmetry; metachannel; super-directivity; epsilon-near-zero (ENZ); leaky-wave antennas;

D O I：

10.1109/iceaa.2019.8879306

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：

We present here parity-time (PT)-symmetric metasurfaces that effectively form an artificial channel (or metachannel) with exotic zero- or low-index characteristics. We show that this PT-synthetic metachannel locked at the coherent perfect absorber-laser (CPAL) point can support an almost nonattenuated fast-wave propagation, thus resulting in a highly directive radiation leakage. Further, the directive beam can be steered from broadside to end-fire by varying the gain-loss parameter (or non-Hermiticity) of the PT system.

引用

页码：891 / 893

页数：3

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