A Switchable Circular Polarizer Based On Active Metasurface At 30 Ghz

Qian Jiang,Jieyun Shen,Chenglong Wang,Xidong Wu,Jinfang Zhou

2020 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION AND NORTH AMERICAN RADIO SCIENCE MEETING（2020）

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摘要

In this paper, a switchable circular polarizer based on varactor-loaded metasurface is proposed. With an incident wave of 45 degrees linear polarization (LP) plane wave, the polarization of the transmission wave through this polarizer can be switched between left-hand circular polarization (LHCP) and right-hand circular polarization (RHCP) by controlling the bias voltage of the varactors. Simulation results show that the designed circular polarizer exhibits transmission loss better than -1 dB, and phase error within +/- 5 degrees in frequency band 29.4 - 30.8 GHz.

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关键词

switchable circular polarizer,varactor-loaded metasurface,linear polarization plane wave,right-hand circular polarization,circular polarizer,left-hand circular polarization,transmission wave polarization,LHCP,RHCP,frequency 29.4 GHz to 30.8 GHz

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