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Transient Analysis of High-Power Microwave Air Breakdown under External DC Magnetic Field
- Source :
- IEEE Transactions on Antennas and Propagation. 68:4894-4903
- Publication Year :
- 2020
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2020.
-
Abstract
- This article concentrates on the high-power microwave (HPM) breakdown process and behaviors in air-filled rectangular waveguide under the external dc magnetic field. To solve the persuasive issue, a three-dimensional (3-D) multiphysics model coupling full-wave Maxwell’s equations with plasma fluid equations is established and solved by the spectral-element time-domain (SETD) method. In our simulation, the Galerkin’s method is employed for the space discretization and the central difference scheme is used for the temporal discretization during the SETD process. The numerical results reveal that the external dc magnetic field applied in breakdown volume can significantly enhance the breakdown threshold to suppress the HPM breakdown, which is beneficial for the propagation of HPM pulse in air-filled waveguide. Our research provides theoretical guidance for suppressing the impact of HPM breakdown for HPM devices protection.
- Subjects :
- Physics
Discretization
Multiphysics
Finite difference
020206 networking & telecommunications
02 engineering and technology
Plasma
Mechanics
Magnetic field
0202 electrical engineering, electronic engineering, information engineering
Electrical and Electronic Engineering
Temporal discretization
Galerkin method
Microwave
Subjects
Details
- ISSN :
- 15582221 and 0018926X
- Volume :
- 68
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Antennas and Propagation
- Accession number :
- edsair.doi...........75a848a23b74c50acd34836dc8bb5ad9