DocumentCode :
891246
Title :
An approximate but accurate analysis of the dielectric wedge antenna fed by a slab waveguide using the local mode theory and Schelkunoff equivalence principle
Author :
Whitman, Gerald M. ; Pinthong, Chairat ; Triolo, Anthony A. ; Schwering, Felix K.
Author_Institution :
Electr. & Comput. Eng. Dept., Polytech. Univ., Newark, NJ, USA
Volume :
54
Issue :
4
fYear :
2006
fDate :
4/1/2006 12:00:00 AM
Firstpage :
1111
Lastpage :
1121
Abstract :
A computationally efficient method to obtain design parameters for tapered radiators is presented. The method uses a local mode theory in conjunction with the Schelkunoff equivalence principle. Radiation patterns of directive gain for dielectric wedge antennas of varying lengths and different dielectric constants are presented. Both the TE and TM cases are considered. The method is validated by comparison with data obtained from a recently developed more rigorous mode-matching method. Excellent agreement is obtained over the physically important angular range from endfire to broadside for the TE case and over the angular range spanned by the major lobe for the TM case.
Keywords :
antenna feeds; antenna radiation patterns; dielectric-loaded antennas; directive antennas; mode matching; permittivity; waveguide transitions; Schelkunoff equivalence principle; TE mode; TM mode; dielectric constant; dielectric wedge antenna feed; directive gain; local mode theory; mode-matching method; radiation pattern; slab waveguide; Antenna radiation patterns; Antenna theory; Dielectrics; Directive antennas; Integral equations; Microwave antennas; Optical waveguides; Slabs; Tellurium; Waveguide theory; Dielectric antenna; dielectric rod antenna; dielectric wedge; local mode theory; mode matching;
fLanguage :
English
Journal_Title :
Antennas and Propagation, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-926X
Type :
jour
DOI :
10.1109/TAP.2006.872653
Filename :
1614167
Link To Document :
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