Numerical studies on nonlinear coupling of high-power microwave pulses into a cylindrical cavity

Author

Wang, Jianguo ; Chen, Yusheng ; Fan, Ruyu ; Yu, Hanqing ; Ge, Debiao

Author_Institution

Inst. of Nucl. Technol., Northwest Univ., Xian, China

Volume

24

Issue

1

fYear

1996

fDate

2/1/1996 12:00:00 AM

Firstpage

193

Lastpage

197

Abstract

In this paper, we use Maxwell´s equations and a set of electron-fluid equations to study the nonlinear coupling processes, which occur when high-power microwave pulses are incident on a cylindrical cavity with a cylindrical aperture. We use Einstein´s theory of relativity to revise the electron equations of momentum conservation. Making use of the finite-difference time-domain method, we simulate nonlinear microwave couplings under different atmospheric conditions. Compared with linear coupling results, some new nonlinear coupling phenomena are observed and explained

Keywords

Maxwell equations; cavity resonators; finite difference time-domain analysis; microwave oscillators; microwave propagation; microwave tubes; Einstein´s theory of relativity; atmospheric conditions; cylindrical aperture; cylindrical cavity; electron equations; electron-fluid equations; finite-difference time-domain method; high-power microwave pulses; momentum conservation; nonlinear coupling processes; nonlinear microwave couplings; numerical studies; simulation; two-dimensional time-dependent Maxwell´s equations; weapons systems; Apertures; Couplings; EMP radiation effects; Electromagnetic waveguides; Electrons; Ionization; Maxwell equations; Microwave devices; Nonlinear equations; Pulse shaping methods;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.491759

Filename

491759