A conformal miniaturized frequency selective surface with high angular stability for EMI shielding in 5G n258 band applications

IF 2.5 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Journal of Computational Electronics Pub Date : 2025-08-31 DOI:10.1007/s10825-025-02413-3

Nigar Berna Teşneli, Fehmi Sandıkçı

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引用次数: 0

Abstract

We present the design and analysis of a polarization-insensitive, angular stable, conformal, miniaturized stopband frequency selective surface (FSS) for fifth-generation (5G), n258 (26 GHz) band electromagnetic (EM) shielding applications. The unit cell of the FSS comprises a basic square-loop resonator with four stub arms placed on inside of each edge. The optimized FSS resonates at 26.02 GHz, with a bandwidth (BW) of 7.43 GHz (21.96–29.39 GHz), effectively covering the desired 5G n258 band. The presented FSS exhibits a stable frequency response, enabling a well BW stability merit across a wide range of incidence angles, from 0° to 80°, for both transverse electric (TE) and transverse magnetic (TM) polarizations. Due to the thin-profile flexible substrate, FSS provides a high conformity and maintains a stable transmission response up to 180° conformal angle. To validate the simulation results, an equivalent circuit model was determined, and measurements were performed on a manufactured prototype of the FSS. And good agreement is observed between the full wave and equivalent circuit simulations, and measurement results. Finally, the novel FSS is proposed as a potential candidate for n258 band electromagnetic interference (EMI) shielding, owing to its presented advantages.

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用于5G n258频段电磁干扰屏蔽的高角稳定性保形小型化频率选择表面

我们提出了一种用于第五代（5G）， n258 （26 GHz）频段电磁（EM）屏蔽应用的偏振不敏感，角稳定，共形，小型化阻带频率选择表面（FSS）的设计和分析。FSS的单元包括一个基本的方环谐振器，每个边缘的内部有四个短臂。优化后的FSS谐振频率为26.02 GHz，带宽（BW）为7.43 GHz (21.96 ~ 29.39 GHz)，有效覆盖了期望的5G n258频段。该FSS具有稳定的频率响应，在宽入射角范围内（从0°到80°），无论是横向电（TE）极化还是横向磁（TM）极化，都具有良好的BW稳定性。由于采用薄型柔性衬底，FSS提供了高一致性，并在高达180°保形角的情况下保持稳定的传输响应。为了验证仿真结果，确定了等效电路模型，并在制造的FSS样机上进行了测量。仿真结果与实测结果吻合较好。最后，由于该新型FSS的优点，被提出作为n258波段电磁干扰（EMI）屏蔽的潜在候选者。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Computational Electronics ENGINEERING, ELECTRICAL & ELECTRONIC-PHYSICS, APPLIED

CiteScore

4.50

自引率

4.80%

发文量

142

审稿时长

>12 weeks

期刊介绍： he Journal of Computational Electronics brings together research on all aspects of modeling and simulation of modern electronics. This includes optical, electronic, mechanical, and quantum mechanical aspects, as well as research on the underlying mathematical algorithms and computational details. The related areas of energy conversion/storage and of molecular and biological systems, in which the thrust is on the charge transport, electronic, mechanical, and optical properties, are also covered. In particular, we encourage manuscripts dealing with device simulation; with optical and optoelectronic systems and photonics; with energy storage (e.g. batteries, fuel cells) and harvesting (e.g. photovoltaic), with simulation of circuits, VLSI layout, logic and architecture (based on, for example, CMOS devices, quantum-cellular automata, QBITs, or single-electron transistors); with electromagnetic simulations (such as microwave electronics and components); or with molecular and biological systems. However, in all these cases, the submitted manuscripts should explicitly address the electronic properties of the relevant systems, materials, or devices and/or present novel contributions to the physical models, computational strategies, or numerical algorithms.