Time domain analysis of patch antennas in a magnetized plasma by the spatial network method

Author

Kashiwa, Tatsuya ; Yoshida, Norinobu ; Fukai, Ichiro

Author_Institution

Dept. of Electr. Eng., Hokkaido Univ., Sapporo, Japan

Volume

39

Issue

2

fYear

1991

fDate

2/1/1991 12:00:00 AM

Firstpage

147

Lastpage

150

Abstract

The near field of a patch antenna in a magnetized plasma is simulated by use of the spatial network method, which is a three-dimensional time domain simulation method. Two fundamental cases are examined in the radiated field: where the direction of the constant magnetic field is perpendicular to the patch plane, and where it is parallel. Results show that radiation characteristics of patch antennas in a magnetized plasma are different from those in free space. It was also confirmed that the Faraday effect is shown in the near field when a perpendicular constant magnetic field is applied to the antenna. In this analysis, the free boundary condition is approximated by terminating the volume with the free space characteristic impedance. A stricter model is necessary, if a reflectionless boundary is to be realized

Keywords

Faraday effect; antenna radiation patterns; antennas in plasma; microstrip antennas; time-domain analysis; 3D simulation; Faraday effect; free boundary condition; free space characteristic impedance; magnetic field; magnetized plasma; microstrip antennas; near field; patch antennas; radiation characteristics; spatial network method; time domain analysis; Boundary conditions; Faraday effect; Impedance; Magnetic analysis; Magnetic domains; Magnetic fields; Patch antennas; Plasma properties; Plasma simulation; Time domain analysis;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.68175

Filename

68175