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
Link To Document :
