Open AccessUltra-broadband wide-angle linear polarization converter based on H-shaped metasurface
Author(s) -
Jia Xu,
Rongqiang Li,
Jin Qin,
Shenyun Wang,
Tong Han
Publication year - 2018
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.020913
Subject(s) - broadband , optics , polarization (electrochemistry) , bandwidth (computing) , microwave , linear polarization , fabrication , materials science , circular polarization , physics , optoelectronics , telecommunications , computer science , microstrip , chemistry , alternative medicine , pathology , quantum mechanics , medicine , laser
We report the design, fabrication, and measurement of an ultra-broadband wide-angle reflective cross-polarization convertor using the compact H-shaped metasurface. The significant bandwidth expansion is attributed to the four electromagnetic resonances generated in an H-shaped unit. The simulation results show that the polarization conversion ratio (PCR) of the proposed metasurface is above 90% in the frequency range from 7 to 19.5 GHz and the relative bandwidth reaches 94%. The proposed metasurface is valid for a wide range of incident angles, and the mean polarization conversion ratio remains 80% even though the incident angle reaches 41.5°. The experimental results are in good agreement with the simulation results. Compared with the previous designs, the proposed linear polarization converter has a simple geometry but an excellent performance and hence has potential applications in microwave communications, remote sensors, and imaging systems.