A double-layer Huygens’ metasurface with complete phase coverage and its dual-polarized meta-lens antenna application

Frontiers in Physics

Physics

Zhiyan Bin¹  Chunhua Xue¹  Qichang Peng¹  Jianhe Zhou¹  Yingxiang Xiong² 

[1] Guangxi Colleges and Universities Key Laboratory of Microwave Communication and Micro–Nano Photoelectric Technology, School of Electronic Engineering, Guangxi University of Science and Technology, Liuzhou, China;null;

关键词: Huygens’ metasurface;    complete phase coverage;    induced magnetism;    meta-lens;    dual-polarized;   

DOI  :  10.3389/fphy.2023.1271969

 received in 2023-08-03, accepted in 2023-09-12,  发布年份 2023

来源: Frontiers

【 摘 要 】

A novel double-layer Huygens’ unit with dual-polarized response and complete phase coverage has been proposed for highly efficient meta-lens antenna application. The designed unit is a symmetric structure in which the double-layer metallic patterns not only act as the electric dipoles but also induce the magnetic dipoles. The balance between the initial electric dipole and the induced magnetic dipole makes the impedance of the metasurface match with that of free space, thus allowing efficient transmission of electromagnetic waves. Moreover, full transmission phase shift and near-unit transmission amplitude can be achieved simultaneously by change the structural parameters of the unit. Utilizing such electromagnetic properties, a dual-polarized meta-lens consisting of 35 × 35 units with size of 161 × 161 mm2 is designed, fabricated and measured. The results exhibit its good radiation performance. The maximum gain at a frequency of 28 GHz reaches 30.8 dBi, with an aperture efficiency of 42.3%. The 3-dB gain bandwidth reaches 12.5%, covering the frequency range of 26.7–30.2 GHz. The simple structure of the designed dual-polarized metasurface, high gain and high antenna efficiency make it an important antenna engineering role.

【 授权许可】

Unknown   
Copyright © 2023 Zhou, Xiong, Peng, Bin and Xue.