Scattering by a lossy dielectric cylinder in a rectangular waveguide

Author

Gesche, Roland ; Löchel, Norbert

Author_Institution

Dept. of Theor. Electr. Eng., Tech. Univ. of Darmstadt, West Germany

Volume

36

Issue

1

fYear

1988

fDate

1/1/1988 12:00:00 AM

Firstpage

137

Lastpage

144

Abstract

Electromagnetic fields in a rectangular waveguide containing a lossy dielectric cylinder are investigated by means of the orthogonal expansion method. The calculated results are provided by measurement. Resonance effects become visible through the frequency responses of the scattering parameters and understandable by patterns due to magnetic fields and Poynting vectors. The lowest resonance is nonsymmetric and can be used to realize tunable bandstop filters with a relative 3-dB bandwidth of about 0.04 and an attenuation of more than 40 dB

Keywords

S-parameters; dielectric-loaded waveguides; electromagnetic field theory; frequency response; rectangular waveguides; waveguide theory; EM fields; Poynting vectors; S-parameters; frequency responses; lossy dielectric cylinder; magnetic fields; orthogonal expansion method; rectangular waveguide; scattering parameters; tunable bandstop filters; Dielectric losses; Dielectric measurements; Electromagnetic fields; Electromagnetic measurements; Electromagnetic scattering; Electromagnetic waveguides; Frequency; Magnetic field measurement; Magnetic resonance; Rectangular waveguides;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.3493

Filename

3493