Simultaneous Transmit-Receive Horn Antenna Based on a Nonreciprocal Metasurface with Embedded Magnetic Bias

被引：0

作者：

Park, Andrew J. ^{[1
]}

Pfeiffer, Carl C. ^{[2
]}

Chabanov, Andrey A. ^{[3
]}

Grbic, Anthony ^{[4
]}

机构：

[1] Univ Michigan Ann Arbor, Dept Elect Engn & Comp Sci, Ann Arbor, MI 48109 USA

[2] Air Force Res Lab, Sensors Directorate, Wright Patterson AFB, OH 45433 USA

[3] Univ Texas San Antonio, Dept Phys & Astron, San Antonio, TX 78249 USA

[4] Univ Michigan Ann Arbor, Dept Elect Engn & Comp Sci, Ann Arbor, MI 48109 USA

来源：

2024 IEEE INTERNATIONAL WORKSHOP ON ANTENNA TECHNOLOGY, IWAT | 2024年

关键词：

metasurface; nonreciprocal; antenna; Faraday rotation; ferrite; circulator; GROUND PLANE; FERRITE;

D O I：

10.1109/iWAT57102.2024.10535783

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：

Many simultaneous transmit and receive (STAR) antenna systems require a ferrite circulator to separate transmitted and received signals. However, conventional ferrite circulators exhibit drawbacks, such as large size and limited isolation. This paper introduces an X-band STAR antenna consisting of a horn antenna integrated with a novel passive metasurface that exhibits Faraday rotation. The metasurface is composed of a yttrium iron garnet (YIG) wafer with embedded neodymium magnets that are held together by dielectric substrates. The substrates provide impedance matching and extend the operational bandwidth. The metasurface, with embedded magnets, is mounted to the horn's aperture. The proposed antenna is described in detail, including its operating principle, design, and simulated performance.

引用

页码：43 / 46

页数：4

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