Microwave Gas Breakdown in Tunable Evanescent-Mode Cavity Resonators

Microwave Gas Breakdown in Tunable Evanescent-Mode Cavity Resonators

Microwave gas breakdown in strongly-coupled evanescent-mode cavity resonators in atmospheric pressure and room temperature is investigated both numerically and experimentally. This high- Q resonator is widely tunable by changing the gap between its loading post and top wall. In this letter, we study...

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Veröffentlicht in:IEEE microwave and wireless components letters 2014-05, Vol.24 (5), p.351-353
Hauptverfasser: Semnani, Abbas, Kenle Chen, Peroulis, Dimitrios
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Barometric pressure
Breakdown
Cavity resonators
Circuit properties
Discharges (electric)
Electric, optical and optoelectronic circuits
Electronic circuits
Electronics
Evanescent-mode cavity resonator
Exact sciences and technology
Frequency measurement
Frequency ranges
Gas breakdown
high power
micro-plasma
Microwaves
Oscillators, resonators, synthetizers
Power measurement
Radio frequency
Resonant frequency
Resonators
Walls
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Zusammenfassung:Microwave gas breakdown in strongly-coupled evanescent-mode cavity resonators in atmospheric pressure and room temperature is investigated both numerically and experimentally. This high- Q resonator is widely tunable by changing the gap between its loading post and top wall. In this letter, we study the effect of different gap spacings on breakdown characteristics of this resonator. Good agreement is observed between measured breakdown powers and ones by plasma simulations for resonators with gaps of 14.8-51.2 μm, working in the 6-8.25 GHz frequency range with input breakdown power in the range of 45-48 dBm.
ISSN:1531-1309
2771-957X
1558-1764
2771-9588
DOI:10.1109/LMWC.2014.2306897