DocumentCode
1004068
Title
Diffraction theory techniques applied to aperture antennas on finite circular and square ground planes
Author
Cockrell, C.R. ; Pathak, Prabhakar H.
Author_Institution
NASA-Langley Research Center, Hampton, VA, USA
Volume
22
Issue
3
fYear
1974
fDate
5/1/1974 12:00:00 AM
Firstpage
443
Lastpage
448
Abstract
Expressions which represent the elevation-plane patterns of a large TEM mode coax aperture and a 
mode circular aperture on finite circular and square ground planes have been derived using geometrical theory of diffraction; design curves for the coax case are presented. The expressions for the field pattern were obtained by superposing the infinite ground plane solutions, the first-order diffracted field solutions and the axial caustic solutions in their respective regions of validity. The pattern analyses for the coax and circular apertures are verified experimentally.
mode circular aperture on finite circular and square ground planes have been derived using geometrical theory of diffraction; design curves for the coax case are presented. The expressions for the field pattern were obtained by superposing the infinite ground plane solutions, the first-order diffracted field solutions and the axial caustic solutions in their respective regions of validity. The pattern analyses for the coax and circular apertures are verified experimentally.Keywords
Aperture antennas; Coaxial aperture antennas; Geometrical diffraction theory; Aircraft; Antenna theory; Aperture antennas; Coaxial components; Helium; Laboratories; Pattern analysis; Physical theory of diffraction; Shape; Space vehicles;
fLanguage
English
Journal_Title
Antennas and Propagation, IEEE Transactions on
Publisher
ieee
ISSN
0018-926X
Type
jour
DOI
10.1109/TAP.1974.1140817
Filename
1140817
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