Power limiting characteristics of a plasma-loaded evanescent-mode cavity resonator

Abbas Semnani, Hee Jun Yang, Michael Sinanis, Sung Jin Park, J. Gary Eden, Sergey O. Macheret, Dimitrios Peroulis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Power limiting behavior of a cold plasma jet when introduced in an evanescent-mode (EVA) resonator is experimentally investigated in this paper. The plasma jet generates a pre-ionized region over the post of the cavity where most of the electric field is concentrated on. Due to pre-ionization, microwave breakdown occurs at a lower power level compared with the no-plasma case. During microwave breakdown the high electron density in the cavity causes high RF loss and consequently results in a power limiting behavior. The proposed technique has been examined in a 7.36-GHz EVA cavity resonator tested with incident power up to 56 W. Arc discharge occurs beyond 56 W causing high reflection levels of the RF signal. The proposed plasma-based approach can be employed in the future as a power limiting technology particularly in challenging applications where conventional techniques cannot be used due to temperature, power, or linearity constraints.

Original languageEnglish (US)
Title of host publicationEuropean Microwave Week 2016
Subtitle of host publication"Microwaves Everywhere", EuMW 2016 - Conference Proceedings; 46th European Microwave Conference, EuMC 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages627-630
Number of pages4
ISBN (Electronic)9782874870439
DOIs
StatePublished - Jan 1 2016
Event46th European Microwave Conference, EuMC 2016 - London, United Kingdom
Duration: Oct 4 2016Oct 6 2016

Publication series

NameEuropean Microwave Week 2016: "Microwaves Everywhere", EuMW 2016 - Conference Proceedings; 46th European Microwave Conference, EuMC 2016

Other

Other46th European Microwave Conference, EuMC 2016
CountryUnited Kingdom
CityLondon
Period10/4/1610/6/16

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ASJC Scopus subject areas

  • Radiation
  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Instrumentation

Cite this

Semnani, A., Yang, H. J., Sinanis, M., Park, S. J., Eden, J. G., Macheret, S. O., & Peroulis, D. (2016). Power limiting characteristics of a plasma-loaded evanescent-mode cavity resonator. In European Microwave Week 2016: "Microwaves Everywhere", EuMW 2016 - Conference Proceedings; 46th European Microwave Conference, EuMC 2016 (pp. 627-630). [7824421] (European Microwave Week 2016: "Microwaves Everywhere", EuMW 2016 - Conference Proceedings; 46th European Microwave Conference, EuMC 2016). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/EuMC.2016.7824421