Guided electromagnetic waves in gyrotropic chirowaveguides

Author

Wenyan, Yin ; Wenbing, Wang ; Pao, Li

Author_Institution

Dept. of Electron. Eng., Northwestern Polytech. Univ., Xian, China

Volume

42

Issue

11

fYear

1994

fDate

11/1/1994 12:00:00 AM

Firstpage

2156

Lastpage

2163

Abstract

The propagation characteristics of hybrid modes in the circular cylindrical and coaxial line gyrotropic chirowaveguides are studied using the technique of separation variables. First, the transverse components of electric and magnetic fields are expressed in terms of the longitudinal components of E and H¯. Then, numerical results are presented for the dispersion behavior and cut-off frequencies as well as the field distributions of hybrid EH_0,1 and HE_n,1, with the effects of different electromagnetic parameters of gyrotropic chiral material taken into consideration. It is shown that the process of mode bifurcation also takes place in the gyrotropic chirowaveguides; this is similar to the cases of reciprocal chirowaveguides. But, gyrotropic chirowaveguides are nonreciprocal bianisotropic devices

Keywords

bifurcation; chirowaveguides; circular waveguides; coaxial waveguides; dispersion (wave); electromagnetic wave propagation; waveguide theory; circular cylindrical chirowaveguides; coaxial line chirowaveguides; cutoff frequencies; dispersion behavior; electromagnetic parameters; field distributions; guided EM waves; gyrotropic chiral material; gyrotropic chirowaveguides; hybrid modes; mode bifurcation; nonreciprocal bianisotropic devices; propagation characteristics; separation variables technique; Bifurcation; Coaxial components; Cutoff frequency; Dispersion; Electromagnetic fields; Electromagnetic propagation; Electromagnetic scattering; Gyrotropism; Helium; Magnetic fields;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.330132

Filename

330132