@inproceedings{85291667b68645a9a4a201f5f852296c,
title = "Higher order plasma-based tunable absorber using magneto-dielectric substrates",
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.",
keywords = "Circuit analog absorber, Lossy frequency selective surfaces, RF plasma discharge, Radar cross section, Tunable absorber",
author = "Komlan Payne and Lee, {Jay K.} and Kevin Xu and Choi, {Jun H.}",
note = "Publisher Copyright: {\textcopyright} 2019 IEEE.; 2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019 ; Conference date: 07-07-2019 Through 12-07-2019",
year = "2019",
month = jul,
doi = "10.1109/APUSNCURSINRSM.2019.8889341",
language = "English (US)",
series = "2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019 - Proceedings",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "2027--2028",
booktitle = "2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019 - Proceedings",
}