Accessible Requires Authentication Published online by De Gruyter October 13, 2021

Miniaturized frequency selective surface with high angular stability

Zain Ul Abidin ORCID logo, Qunsheng Cao, Gulab Shah, Zaheer Ahmed Dayo and Muhammad Ejaz
From the journal Frequenz

Abstract

In this paper, a miniaturized bandstop frequency selective surface (FSS) with high angular stability is presented. Each FSS element consists of four sets each consisting eight octagonal concentric interconnected loops. The four sets are connected with each other through outermost octagonal loop. The unit size is miniaturized to 0.066 λ0 at the resonant frequency of 1.79 GHz. The proposed configuration achieves excellent angular stability (only 0.025 GHz resonant frequency deviation is observed upto 83° oblique angles). The working mechanism of FSS is explained with the help of equivalent circuit model (ECM), electric field distribution, and corresponding surface current distribution. A prototype of the designed bandstop FSS is fabricated to verify the simulated frequency response. The experimental results are consistent with the simulation results. Simple geometry, low profile, high angular stability, and compact cell size are prominent features of the proposed structure.


Corresponding author: Zain Ul Abidin, College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China, E-mail:

Funding source: Natural Science Foundation of China

Award Identifier / Grant number: 61871219

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: The authors gratefully acknowledge the financial support from the Natural Science Foundation of China under grant No. 61871219.

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2021-05-06
Accepted: 2021-10-01
Published Online: 2021-10-13

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