Design and validation of a novel 2.5‐D miniaturized FSS with angular and superior polarization stability for mobile technology

Author:

Li Yan1ORCID,Wang Pei1,Xu Shaojie2,Yu Guoliang1,Qiu Yang1,Zhu Mingmin1,Zhou Haomiao,Li Erping2

Affiliation:

1. Key Laboratory of Electromagnetic Wave Information Technology and Metrology of Zhejiang Province College of Information Engineering, China Jiliang University Hangzhou China

2. Zhejiang Key Laboratory of Advanced Micro/Nano Electronic Smart Systems and Applications College of Information Science and Electronic Engineering, Zhejiang University Hangzhou China

Abstract

AbstractThis paper presents a novel 2.5D miniaturized frequency‐selective surface (FSS) measuring 6.1 mm × 6.1 mm, designed to effectively shield smartphones and tablets from unwanted electromagnetic radiation. The FSS is notable for its stable attenuation peaks in the high‐frequency stopband under transverse magnetic (TM) polarization, offering dual‐frequency response and exceptional angular stability in both transverse electric and TM modes. An equivalent circuit analysis, prototype fabrication, and empirical evaluation confirmed its effectiveness. The prototype exhibits superior polarization stability and minimal peak attenuation reduction of just 1.9 dB (10%) across a 0°–60° incidence angle, outperforming similar studies.

Funder

National Natural Science Foundation of China

Publisher

Wiley

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