Bulletin of the American Physical Society
76th Annual Gaseous Electronics Conference
Volume 68, Number 9
Monday–Friday, October 9–13, 2023; Michigan League, Ann Arbor, Michigan
Session DR4: Plasma Semiconductor & RF Applications
1:30 PM–3:30 PM,
Thursday, October 12, 2023
Room: Michigan League, Hussey
Chair: Uwe Czarnetzki, Ruhr-University Bochum, Faculty of Physics and Astronomy
Abstract: DR4.00004 : Design and Analysis of a Plasma-Based Reconfigurable and Frequency-Selective Rasorber*
2:30 PM–2:45 PM
Presenter:
Md Tanvir Ahmed
(University of Toledo)
Authors:
Md Tanvir Ahmed
(University of Toledo)
Krushna Kanth Varikuntla
(The University of Toledo)
Abbas Semnani
(University of Toledo)
This study focuses on investigating a frequency-selective absorber that exhibits a nearly transparent window between two absorption bands. The rasorber structure comprises a resistive sheet and a bandpass frequency-selective surface (FSS) with an air gap positioned in between. Gas discharge tubes (GDTs) have been employed as plasma cells to achieve parallel resonance within the resistive element. This unique configuration enables the rasorber to be reconfigured when incoming high-power microwave signals ignite the plasmas within the system. Additionally, the structure's bottom layer is optimized to align with the transmission band of the resistive sheet, ensuring efficient performance. Simulated results demonstrate the successful implementation of this technique. The forthcoming discussion will delve into the fabrication details and provide experimental findings to complement the study.
*This work was supported by the Office of Naval Research under Grant Number N00014-21-1-2441.
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