Hybrid Field/Transmission-Line Model for the Study of Coaxial Corrugated Waveguides

Author

Savaidis, Stylianos P. ; Ioannidis, Zisis C. ; Stathopoulos, Nikolaos A.

Author_Institution

Dept. of Electron., Technol. Educ. Instn. of Piraeus, Athens, Greece

Volume

60

Issue

10

fYear

2012

Firstpage

2972

Lastpage

2978

Abstract

A transmission-line model is reformulated and combined with field theory to study the propagation characteristics in coaxial waveguides with wedge-shaped corrugations, either on the outer wall or the inner conductor. Numerical results show that this equivalent-circuit approach is in agreement with conventional full-wave methods presented in the literature. Additionally, this formulation overcomes numerical issues in the calculation of higher order Bessel functions, which usually conscript sophisticated expansion techniques.

Keywords

Bessel functions; coaxial waveguides; equivalent circuits; transmission lines; coaxial corrugated waveguides; coaxial waveguides; equivalent-circuit approach; field theory; full-wave methods; higher order Bessel functions; hybrid field/transmission-line model; numerical issues; propagation characteristics; wedge-shaped corrugations; Conductors; Eigenvalues and eigenfunctions; Equations; Impedance; Magnetic resonance; Power transmission lines; Corrugated waveguides; gyro traveling-wave tube (gyro-TWT); magnetron; transmission lines;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/TMTT.2012.2209440

Filename

6262448