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 GR2: Inductively Coupled Plasmas
10:00 AM–12:00 PM,
Thursday, October 12, 2023
Room: Michigan League, Henderson
Chair: De-Qi Wen, Department of Computational Mathematics Science and Engineering, Michigan State University
Abstract: GR2.00006 : A Plasma-Based Frequency-Selective Limiting Reflectarray*
11:15 AM–11:30 AM
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 novel frequency-selective limiting reflectarray, utilizing an innovative approach of integrating plasma cells into an absorptive resonant topology. The proposed design offers a distinctive response characteristic where the limiter transitions from a reflection state to selective narrowband absorption once the input power exceeds the threshold required for gas breakdown within the plasma cells. This mode change occurs due to a shift from constructive interference in the reflection mode to destructive interference in the absorption mode, facilitated by the altered dielectric properties of the plasma cell. The experimental results of the plasma-based frequency-selective limiting reflectarray will be discussed, showcasing its capability to effectively manage high input powers exceeding 100s of Watts. This power is substantially higher than what other limiting technologies can provide.
*This work was supported by the Office of Naval Research under Grant Number N00014-21-1-2441.
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