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A Wide Passband Frequency Selective Absorber Based on Cascading Different Parallel Resonators

  • Dengshuang Yi
  • , Qirui Yu
  • , Jiahui Fu*
  • , Jiakai Zhang
  • , Yizhi Zhang
  • , Wentao Liang
  • , Yiding Liu
  • *Corresponding author for this work
  • School of Electronics and Information Engineering, Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This letter proposes a wide transmission band frequency-selective rasorber (FSR) which has a lower absorption band and higher reflection band. The FSR consists of a resistive sheet and a bandpass frequency-selective surface (FSS). Under simple guideline of equivalent circuit model (ECM), a wide-transparent window can be achieved through cascading three interdigital resonator. Lumped resistors are loaded at the corner of resistive sheet to absorb the incident wave at lower band. When the resistive sheet is in series resonance, the incident wave is nearly reflected. The simulation results indicate that a -3 dB transmission window can be obtained from 7.9 GHz to 12.2 GHz while a 90% absorption band is from 3.4 GHz to 7.2 GHz and a -1 dB reflection band is from 13GHz to 16GHz.

Original languageEnglish
Title of host publication2025 International Symposium on Antennas and Propagation, ISAP 2025
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9784885523588
DOIs
StatePublished - 2025
Externally publishedYes
Event2025 International Symposium on Antennas and Propagation, ISAP 2025 - Fukuoka, Japan
Duration: 27 Oct 202531 Oct 2025

Publication series

Name2025 International Symposium on Antennas and Propagation, ISAP 2025

Conference

Conference2025 International Symposium on Antennas and Propagation, ISAP 2025
Country/TerritoryJapan
CityFukuoka
Period27/10/2531/10/25

Keywords

  • Equivalent circuit model (ECM)
  • Frequency-selective rasorber (FSR)
  • Wide passband

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