Cut-off wave number and dispersion characteristics of eccentric annular guide with dielectric support

Author

Dey, Ranajit ; Agnihotri, Ila ; Chakrabarty, Soumybrata ; Sharma, Shashi

Author_Institution

Antenna Syst. Area, Space Applic. Centre, Ahmedabad

fYear

2007

fDate

19-20 Dec. 2007

Firstpage

1

Lastpage

4

Abstract

The paper presents a rigorous analysis of a uniform waveguide with circular outer conductor and eccentric inner conductor supported by dielectric slab between the inner and outer conductors. A vector finite element approach in which non-physical spurious solutions do not appear has been followed to study the cut-off frequencies of higher-order modes as well as dispersion characteristics of this guiding structure. Numerical data on cut-off wave numbers and dispersion characteristics have been presented.

Keywords

circular waveguides; conducting bodies; dielectric bodies; dielectric waveguides; finite element analysis; permittivity; slabs; circular outer conductor; cut-off wave number; dielectric slab; dielectric support; dispersion characteristics; eccentric annular guide; eccentric inner conductor; higher-order modes; nonphysical spurious solution; uniform waveguide; vector finite element approach; Conductors; Cutoff frequency; Dielectrics; Finite element methods; Geometry; Partial differential equations; Permeability; Permittivity; Slabs; Transmission line matrix methods; Eccentric annular cross-section; Helmholtz equation; edge elements; vector finite element;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Electromagnetics Conference, 2007. AEMC 2007. IEEE

Conference_Location

Kolkata

Print_ISBN

978-1-4244-1863-3

Electronic_ISBN

978-1-4244-1864-0

Type

conf

DOI

10.1109/AEMC.2007.4638043

Filename

4638043