TY - JOUR
T1 - Calculations of Multipactor Growth in Rectangular Waveguides
AU - Nguyen, Hieu K.A.
AU - Mankowski, John
AU - Dickens, James C.
AU - Neuber, Andreas A.
AU - Joshi, Ravi P.
N1 - Funding Information:
Manuscript received June 21, 2018; revised October 27, 2018; accepted December 7, 2018. Date of publication January 1, 2019; date of current version February 11, 2019. This work was supported by the Department of Defense MURI on “Multipactor and Breakdown Susceptibility and Mitigation in Space-Based RF Systems” under Grant FA9550-18-1-0062. The review of this paper was arranged by Senior Editor W. Jiang. (Corresponding author: Ravi P. Joshi.) The authors are with the Department of Electrical Engineering, Texas Tech University, Lubbock, TX 79409 USA (e-mail: hieu.nguyen@ttu.edu; john.mankowski@ttu.edu; james.dickens@ttu.edu; andreas.neuber@ttu.edu; ravi.joshi@ttu.edu).
Publisher Copyright:
© 1973-2012 IEEE.
PY - 2019/2
Y1 - 2019/2
N2 - Multipactor growth in rectangular waveguides is probed based on a kinetic approach. Unlike most studies relying on the Vaughan model, a probabilitic approach for random multiple secondary particle emissions is used. Spread in electron emission velocities, the angular dependence of secondary emission yields, and an external radio frequency (RF) driving field due to a TE10 mode, were all built in. The calculations predict the secondary emission yield for copper, probe the population growth dynamics, and obtain the susceptibility diagram. Despite a maximum field at the waveguide center from the RF excitation, maximum electron densities are predicted at locations symmetrically displaced from the center. The secondary electron yield (SEY) characteristics, its local maxima, and the role of oblique incident angles, collectively lead to multipactor finding its place at off-center locations.
AB - Multipactor growth in rectangular waveguides is probed based on a kinetic approach. Unlike most studies relying on the Vaughan model, a probabilitic approach for random multiple secondary particle emissions is used. Spread in electron emission velocities, the angular dependence of secondary emission yields, and an external radio frequency (RF) driving field due to a TE10 mode, were all built in. The calculations predict the secondary emission yield for copper, probe the population growth dynamics, and obtain the susceptibility diagram. Despite a maximum field at the waveguide center from the RF excitation, maximum electron densities are predicted at locations symmetrically displaced from the center. The secondary electron yield (SEY) characteristics, its local maxima, and the role of oblique incident angles, collectively lead to multipactor finding its place at off-center locations.
KW - Monte Carlo
KW - multipactor
KW - pulsed power application
KW - secondary electron emission
KW - simulation
KW - waveguide
UR - http://www.scopus.com/inward/record.url?scp=85061398079&partnerID=8YFLogxK
U2 - 10.1109/TPS.2018.2887048
DO - 10.1109/TPS.2018.2887048
M3 - Article
AN - SCOPUS:85061398079
VL - 47
SP - 1364
EP - 1371
JO - IEEE Transactions on Plasma Science
JF - IEEE Transactions on Plasma Science
SN - 0093-3813
IS - 2
M1 - 8599158
ER -