High-Efficiency Dual-Frequency Reflective Linear Polarization Converter Based on Metasurface for Microwave Bands

Applied Sciences

Zhijie Sun¹  Changfeng Fu¹  PaulK. Chu²  Tao Sun³  Lianfu Han⁴  Chao Liu⁴ 

[1] College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China;Department of Physics and Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong 999077, China;Media Lab, Massachusetts Institute of Technology, Cambridge, MA 02139, USA;School of Electronics Science, Northeast Petroleum University, Daqing 163318, China;

关键词: dual-frequency;    polarization converter;    metasurface;    high-efficiency;   

DOI  :  10.3390/app9091910

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown