A Low-Profile Transmissive Metasurface for Transformation of Plane Wave to Contour Beam Pattern Using 4-Arm Spiral Element

Abdul Aziz; Fan Yang; Shenheng Xu; Maokun Li

doi:10.1109/ACCESS.2021.3064703

IEEE Access (Jan 2021)

A Low-Profile Transmissive Metasurface for Transformation of Plane Wave to Contour Beam Pattern Using 4-Arm Spiral Element

Abdul Aziz,
Fan Yang,
Shenheng Xu,
Maokun Li

Affiliations

Abdul Aziz: ORCiD; Department of Information and Communication Engineering, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
Fan Yang: ORCiD; Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology, Tsinghua University, Beijing, China
Shenheng Xu: ORCiD; Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology, Tsinghua University, Beijing, China
Maokun Li: ORCiD; Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology, Tsinghua University, Beijing, China

DOI: https://doi.org/10.1109/ACCESS.2021.3064703
Journal volume & issue: Vol. 9
pp. 39792 – 39797

Abstract

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A low-profile transmissive metasurface is proposed to synthesize contour beam pattern for a European region. A slot array feed is used to illuminate same size metasurface aperture with a plane wave at a near field distance of 24 mm. A two step optimization process is proposed to solve asymmetric and complicated pattern synthesis problem for transformation of plane wave to contour beam pattern using modified Alternating Projection Method (APM). A new subwavelength 4-arm spiral element is proposed to achieve desired performance for contour beam pattern synthesis in $Ku$ band centered at 12.5 GHz. A prototype of low profile transmissive metasurface is also fabricated and measured to verify its gain and bandwidth performance for contour beam pattern synthesis for the European region.

Published in IEEE Access

ISSN: 2169-3536 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering
Website: https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6287639

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