DocumentCode :
2761592
Title :
Metallic posts in a radial waveguide
Author :
Sengupta, Dipak L. ; Martins-Camelo, Luis F.
Author_Institution :
University of Michigan, Ann Arbor, MI, USA
Volume :
18
fYear :
1980
fDate :
29373
Firstpage :
40
Lastpage :
43
Abstract :
The calculation of input impedance of Dielectric-Filled Edge-Slot (DFES) antennas [1] requires the knowledge of the effects of passive metallic posts in a radial waveguide. The present paper describes a method to determine the equivalent circuit parameters for a number of 
-directed passive metallic posts, uniformly distributed along 
, within an 
-type radial waveguide, extending from 
to 
and whose axis is oriented along the -axis. The waveguide is excited at its center by a -directed coaxial stub of radius , the waveguide dimension (d) in the -direction is sufficiently small so that only the dominant mode fields ( 
) can propagate everywhere.
-directed passive metallic posts, uniformly distributed along , within an -type radial waveguide, extending from to and whose axis is oriented along the -axis. The waveguide is excited at its center by a -directed coaxial stub of radius , the waveguide dimension (d) in the -direction is sufficiently small so that only the dominant mode fields ( ) can propagate everywhere.Keywords :
Coaxial components; Dielectrics; Distributed parameter circuits; Equivalent circuits; Impedance; Laboratories; Magnetic fields; Slot antennas; Transmission line discontinuities; Voltage;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Antennas and Propagation Society International Symposium, 1980
Type :
conf
DOI :
10.1109/APS.1980.1148361
Filename :
1148361
Link To Document :
