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Plasma-based microwave power limitation in a printed transmission line: a self-consistent model compared with experimental data

Fuster, Lucas and Hagelaar, Gerjan and Pascaud, Romain and Simon, Antoine and Hoffmann, Patrick and Liard, Laurent and Pascal, Olivier and Callegari, Thierry Plasma-based microwave power limitation in a printed transmission line: a self-consistent model compared with experimental data. (2022) Plasma Sources Science and Technology, 31 (2). 025009. ISSN 0963-0252

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Official URL: https://doi.org/10.1088/1361-6595/ac4848

Abstract

Plasma-based microwave power limitation in a suspended microstrip transmission line integrating a micro hollow cathode discharge (MHCD) in its center is experimentally and numerically studied. Transient and steady state microwave power measurements exhibit a limitation threshold of 28 dBm and time responses of 25 microseconds. Intensified charge-coupled device (ICCD) imaging shows that microwave breakdown occurs at the top of the MHCD. The plasma then extends towards the microwave source within the suspended microstrip transmission line. Besides, a self-consistent model is proposed to simulate the non-linear interaction between microwave and plasma. It gives numerical results in agreement with the measurements, and show that the plasma expansion during the transient response is related to a shift between the ionization source term and the electron density maximum. The propagation speed, under the tested conditions, depends mainly on the stepwise ionization from the excited states.

Item Type:Article
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Commissariat à l'Energie Atomique et aux énergies alternatives - CEA (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Anywaves (FRANCE)
Laboratory name:
Funders:
DGA - AID - Région Occitanie Pyrénées-Méditerranée - Agence Nationale de la Recherche
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Deposited On:28 Jun 2022 14:37

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