DocumentCode :
1419078
Title :
Attenuation characteristics of dominant mode in inhomogeneously filled transmission lines
Author :
Chambers, B. ; Kharadly, M.M.Z.
Author_Institution :
University of British Columbia, Department of Electrical Engineering, Vancouver, Canada
Volume :
117
Issue :
5
fYear :
1970
fDate :
5/1/1970 12:00:00 AM
Firstpage :
897
Lastpage :
902
Abstract :
For a parallel-plate or coaxial transmission line, a dielectric layer of sufficiently high permittivity placed in the space between the conductors, but adjacent to neither, can result in an attenuation coefficient which is significantly lower than that of the air-filled line. The dominant mode in these lines is shown to be a TM mode with no lower cutoff frequency. The expressions for the attenuation coefficient, derived by a perturbational technique, are applicable for any range of line dimensions and dielectric-layer permittivity and thickness.
Keywords :
dielectric properties of substances; transmission line theory;
fLanguage :
English
Journal_Title :
Electrical Engineers, Proceedings of the Institution of
Publisher :
iet
ISSN :
0020-3270
Type :
jour
DOI :
10.1049/piee.1970.0178
Filename :
5248871
Link To Document :
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