Numerical analysis of plasma structure observed in atmospheric millimeter-wave discharge at under-critical intensity

2018 ◽  
Vol 124 (3) ◽  
pp. 033303 ◽  
Author(s):  
Yusuke Nakamura ◽  
Kimiya Komurasaki ◽  
Masafumi Fukunari ◽  
Hiroyuki Koizumi
Keyword(s):  
Numerical Analysis ◽  
Millimeter Wave ◽  
Plasma Structure ◽  
Wave Discharge ◽  
Critical Intensity

scholarly journals Electron density and gas density measurements in a millimeter-wave discharge

2016 ◽  
Vol 23 (8) ◽  
pp. 083512 ◽  
Author(s):  
S. C. Schaub ◽  
J. S. Hummelt ◽  
W. C. Guss ◽  
M. A. Shapiro ◽  
R. J. Temkin
Keyword(s):  
Electron Density ◽  
Millimeter Wave ◽  
Gas Density ◽  
Density Measurements ◽  
Wave Discharge

scholarly journals A numerical analysis of a microwave induced coaxial surface wave discharge fed with a mixture of oxygen and hexamethyldisiloxane for the purpose of deposition

2019 ◽  
Vol 28 (11) ◽  
pp. 115003 ◽  
Author(s):  
Efe Kemaneci ◽  
Felix Mitschker ◽  
Jan Benedikt ◽  
Denis Eremin ◽  
Peter Awakowicz ◽  
...  
Keyword(s):  
Surface Wave ◽  
Numerical Analysis ◽  
Wave Discharge

scholarly journals Development of a Novel Launch System Microwave Rocket Powered by Millimeter-Wave Discharge

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Kimiya Komurasaki ◽  
Kuniyoshi Tabata
Keyword(s):  
Millimeter Wave ◽  
Cost Reduction ◽  
Wave Beam ◽  
Design History ◽  
Filamentary Structure ◽  
History Of Development ◽  
Quarter Wavelength ◽  
Atmospheric Discharge ◽  
History Of ◽  
Wave Discharge

This paper presents the state of art of Microwave Rocket development and related researches on atmospheric discharge in a high-power millimeter-wave beam. Its operational mechanisms, thruster design, history of development, and flight path and cost analyses are introduced along with millimeter-wave discharge observations and numerical simulations. A thruster model of 126 g weight with no on-board propellant was launched to 1.2 m altitude using a 1 MW class gyrotron. A flight analysis that shows 77% cost reduction is possible using Microwave Rocket as the first stage of H-IIB heavy. A millimeter-wave discharge with unique plasma structure such as a quarter-wavelength microstructure and a comb-shaped filamentary structure was observed and reproduced by a two-dimensional numerical model.

Spatial and Temporal Non-Equilibrium of Millimeter-Wave Discharge Plasma in Microwave Rocket

2021 ◽  
Author(s):  
Kuniyoshi Tabata ◽  
Hanco Britz ◽  
Kimiya Komurasaki ◽  
Rei Kawashima ◽  
Hiroyuki Koizumi
Keyword(s):  
Millimeter Wave ◽  
Discharge Plasma ◽  
Wave Discharge ◽  
Non Equilibrium
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