High-efficiency dual-frequency reflective linear polarization converter based on metasurface for microwave bands
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applsci-09-01910-v2.pdf
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3.78 MB
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Author(s)
Fu, Changfeng
Sun, Zhijie
Han, Lianfu
Liu, Chao
Sun, Tao
Chu, Paul K.
Date Issued
May 9, 2019
Journal
Applied Sciences
Publisher
Multidisciplinary Digital Publishing Institute
Citation
Fu, Changfeng, et al., "High-efficiency dual-frequency reflective linear polarization converter based on metasurface for microwave bands." Applied Sciences 9, 9 (May 2019): no. 1910 doi 10.3390/app9091910 ©2019 Author(s)
Version
Final published version
Abstract
A dual-broadband and high-efficiency reflective linear polarization converter based on an anisotropic metasurface is presented. The device consists of two symmetrical, double-slotted metallic split-rings and one criss-cross structure, a dielectric layer, and a completely reflective metallic ground. The converter exhibits four resonances and can near-perfectly convert x- or y-polarized incident waves into cross-polarized waves in the frequency ranges of 9.38–13.36 GHz and 14.84–20.36 GHz. The polarization conversion ratios (PCRs) of the two bands are 98.21% and 99.32%, respectively. The energy conversion ratio (ECR) for energy loss measurement is almost 100% in these frequency bands. The polarization conversion principle is studied. The bandwidths and PCRs of the two bands are determined by varying the dielectric layer thickness. The simulation results are consistent with experimental observations. The designed dual-broadband and high-efficiency metasurface has great potential in the application of electromagnetic polarization control. Keywords: dual-frequency; polarization converter; metasurface; high-efficiency
MIT Department
Massachusetts Institute of Technology. Media Laboratory
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Creative Commons Attribution
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DOI of Published Version
https://doi.org/10.3390/app9091910
