Multi-fold geometric phase metasurface with versatile operations for transmission and reflection

Faizan Faraz; Yuanqing Huang; Zhengping Zhang; Xiangming Wu; Guoping Chu; Taufeeq Ur Rehman Abbasi; Xiong Wang; Liming Si; Weiren Zhu

Materials & Design (Jul 2024)

Multi-fold geometric phase metasurface with versatile operations for transmission and reflection

Faizan Faraz,
Yuanqing Huang,
Zhengping Zhang,
Xiangming Wu,
Guoping Chu,
Taufeeq Ur Rehman Abbasi,
Xiong Wang,
Liming Si,
Weiren Zhu

Affiliations

Faizan Faraz: Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Yuanqing Huang: Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Zhengping Zhang: School of Information Science and Technology, ShanghaiTech University, Shanghai 201210, China
Xiangming Wu: Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Guoping Chu: School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Taufeeq Ur Rehman Abbasi: Key Lab of CAD & CG, Laboratory of Soft Machines and Smart Devices of Zhejiang Province & Department of Engineering Mechanics, Zhejiang University, Hangzhou 310027, China
Xiong Wang: School of Information Science and Technology, ShanghaiTech University, Shanghai 201210, China
Liming Si: Beijing Key Laboratory of Millimeter Wave and Terahertz Technology, School of Integrated Circuits and Electronics, Beijing Institute of Technology, Beijing 100081, China; Corresponding author at: Beijing Key Laboratory of Millimeter Wave and Terahertz Technology, School of Integrated Circuits and Electronics, Beijing Institute of Technology, Beijing 100081, China.
Weiren Zhu: Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; Corresponding author at: Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.

Journal volume & issue: Vol. 243
p. 113090

Abstract

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We propose a high efficiency wideband three-fold geometric phase metasurface for versatile operation of transmission and reflection. The transmission coefficient as high as 87 % is achieved in the frequency range of f1 (15.4–15.8 GHz), while equal transmission and reflection are achieved in two frequency bands represented by f2 (14.6–15.2 GHz & 16–17 GHz) with maximum coefficient reaches 49 %. With geometric rotation, the phase shifts of the cross-polarized transmission and co-polarized reflection are six times the rotation angle within the frequency range of 14.6–17 GHz. Furthermore, by elaborately breaking the mirror symmetry while preserving rotational symmetry, interesting features of resonance frequency shift and mode splitting are observed, offering a more fruitful approach for versatile operations. To substantiate the proposed design, a metasurface prototype for vortex beam generation is fabricated and verified by microwave measurement.

Published in Materials & Design

ISSN: 0264-1275 (Print); 1873-4197 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.journals.elsevier.com/materials-and-design

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