Excitation of whistler modes guided by a lossy anisotropic plasma column

Author

Es´kin, Vasiliy A. ; Kudrin, Alexander V. ; Zaboronkova, Tatyana M.

Author_Institution

Dept. of Radiophys., Univ. of Nizhny, Novgorod

fYear

2007

Firstpage

160

Lastpage

166

Abstract

A study is made of the excitation of electromagnetic waves by spatially bounded given electric currents in the presence of an axially magnetized cylindrical plasma column surrounded by free space. A rigorous solution for the total field comprising both the discrete and continuous parts of the spatial spectrum of the excited waves is found. Using the obtained field representation, the contributions of guided and unguided modes of the column to the impedance of a loop antenna are determined for the whistler frequency range. It is shown that allowance for relatively small collisional losses in the plasma can result in appreciable redistribution of the antenna- launched power among the excited modes.

Keywords

electric current; electric impedance; loop antennas; plasma collision processes; plasma waves; whistlers; electric currents; electromagnetic waves; excited waves; impedance; loop antenna; lossy anisotropic plasma column; rigorous solution; small collisional losses; spatial spectrum; whistler frequency range; whistler modes; Anisotropic magnetoresistance; Diffraction; Electrons; Frequency; Magnetic anisotropy; Perpendicular magnetic anisotropy; Plasma density; Plasma properties; Plasma sources; Plasma waves;

fLanguage

English

Publisher

ieee

Conference_Titel

Days on Diffraction, 2007 International Conference

Conference_Location

St. Petersburg

Print_ISBN

5-9651-0118-X

Type

conf

DOI

10.1109/DD.2007.4532009

Filename

4532009