Higher order plasma-based tunable absorber using magneto-dielectric substrates

Komlan Payne, Jay K. Lee, Kevin Xu, Jun H. Choi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents a multilayer absorber based on the technique previously developed for the design of a thickness customizable high-order bandpass frequency selective surface (FSS). Lossy substrates are used to absorb the electromagnetic energy in the FSS backed by a ground plane. Such technique allows simple integration of the tuning elements, while simultaneously providing the design option to realize the absorber with specific/desired thicknesses. The lossy substrates are perforated to host discrete electrically tunable ceramic gas-encapsulating chambers (plasma-shells). These plasma-shells enable dynamic control of the absorption spectral band. To demonstrate the design flexibility and performance, a second order frequency selective absorber operating at the C-band (center frequency at f0 = 6 GHz with 17% fractional bandwidth) is designed with different thickness configurations. Then the plasma-shells are strategically integrated in the design in order to control the location of both absorption resonant frequencies by applying different plasma frequencies. Full-wave electromagnetic simulations are carried out to validate the proposed concepts.

Original languageEnglish (US)
Title of host publication2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2027-2028
Number of pages2
ISBN (Electronic)9781728106922
DOIs
StatePublished - Jul 2019
Event2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019 - Atlanta, United States
Duration: Jul 7 2019Jul 12 2019

Publication series

Name2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019 - Proceedings

Conference

Conference2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019
CountryUnited States
CityAtlanta
Period7/7/197/12/19

Keywords

  • Circuit analog absorber
  • Lossy frequency selective surfaces
  • RF plasma discharge
  • Radar cross section
  • Tunable absorber

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Signal Processing
  • Instrumentation

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  • Cite this

    Payne, K., Lee, J. K., Xu, K., & Choi, J. H. (2019). Higher order plasma-based tunable absorber using magneto-dielectric substrates. In 2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019 - Proceedings (pp. 2027-2028). [8889341] (2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APUSNCURSINRSM.2019.8889341