Design of A Novel Wideband Microwave Absorber with High Absorptance

Zhi Wen Chen*, Wu Ren, Zheng Hui Xue, Wei Ming Li

*Corresponding author for this work

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

Abstract

In this paper, a wideband microwave absorber with high absorptance based on double layer structure is proposed. Two similar metal rings loaded with resistances are attached to the upper and lower surfaces of the dielectric substrate. Its bandwidth is mainly determined by the two high resonant points of lower layer and two low resonant points of upper layer. The size of unit is 40mm× 40mm× 11mm. The simulated results show that the absorber can achieve more than 95% absorption rate from 2.67GHz-6.88GHz under normal incidence, the fractional bandwidth is 88.1% and the band-in average absorption rate is 97.1%. The total thickness is only 0.097λL, where λL is the wavelength at 2.67GHz. Meanwhile, the absorber maintains good absorptance within the range of 40° at oblique incidence.

Original languageEnglish
Title of host publication2023 IEEE 11th Asia-Pacific Conference on Antennas and Propagation, APCAP 2023 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798350326277
DOIs
Publication statusPublished - 2023
Event11th IEEE Asia-Pacific Conference on Antennas and Propagation, APCAP 2023 - Proceedings - Guangzhou, China
Duration: 22 Nov 202324 Nov 2023

Publication series

Name2023 IEEE 11th Asia-Pacific Conference on Antennas and Propagation, APCAP 2023 - Proceedings

Conference

Conference11th IEEE Asia-Pacific Conference on Antennas and Propagation, APCAP 2023 - Proceedings
Country/TerritoryChina
CityGuangzhou
Period22/11/2324/11/23

Keywords

  • Equivalent Circuit
  • Metamaterial
  • Wideband Absorber

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