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: DR4.00007 : A Conformal Plasma Frequency Selective Surface with Tunable and Switching Performance*
3:15 PM–3:30 PM
Presenter:
Krushna Kanth Varikuntla
(The University of Toledo)
Authors:
Krushna Kanth Varikuntla
(The University of Toledo)
Abbas Semnani
(University of Toledo)
This study introduces a plasma-based flexible frequency selective surface (FSS) with switchable and tunable performance. The proposed structure exhibits tunable transmission frequency response under normal power levels (OFF mode). However, when exposed to high powers (ON mode), the plasma cells ignite and effectively block the transmission, providing more than 15 dB shielding with a rapid response. The shielding performance is influenced by factors such as gas constant and pressure. The ultrathin and compact design of the proposed FSS enables high flexibility while maintaining stable electromagnetic performance, even for higher oblique incident electromagnetic waves. The fabrication procedure of a prototype will be discussed, along with experimental results illustrating the performance of both the OFF and ON modes. Furthermore, the study will investigate the power handling capabilities of the proposed design, providing insights into its ability to manage high-power scenarios effectively.
* This work was supported by the Office of Naval Research under Grant Number N00014-21-1-2441.
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