机电可调谐低损耗毫米波LP到LHCP或RHCP转换超表面

2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (USNC-URSI) Pub Date : 2023-07-23 DOI:10.1109/USNC-URSI52151.2023.10237855

E. Vassos, Alexandros Feresidis

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引用次数: 0

摘要

提出了一种新型毫米波机电可调谐反射偏振转换超表面的设计。可调性是通过各向异性阻抗表面和地平面之间的可变空腔来实现的。空腔高度的变化提供了从线性偏振到右手圆偏振或左手圆偏振的偏振转换。利用CST Microwave Studio进行了仿真，以评估所提出的超表面的反射特性和可调性。仿真结果表明，在76 GHz波段，两种圆偏振态之间的转换是可控的，反射损耗极低。

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Electro-Mechanically Tunable Low-Loss mm-Wave LP to LHCP or RHCP Conversion Metasurface

The design of a novel electro-mechanically tunable reflection polarization conversion metasurface at millimetre-wave frequencies is presented. Tunability is achieved via a variable air cavity between an anisotropic impedance surface and a ground plane. The air cavity height variation provides a polarization conversion from linear polarization to right-handed circular polarization or left-handed circular polarization. Simulations have been carried out using CST Microwave Studio to evaluate the proposed metasurface's reflection characteristics and tunability. Simulations demonstrate a controllable transition between the two circular polarization states at 76 GHz with extremely low reflection losses.

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来源期刊

2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (USNC-URSI)

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