A caustic corrected UTD solution for a short monopole near a curved edge on a flat plate

Author

Meloling, J.H. ; Marhefka, R.J.

Author_Institution

Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA

Volume

1

fYear

1994

fDate

20-24 June 1994

Firstpage

606

Abstract

Corrections to the uniform geometrical theory of diffraction (UTD) that account for the caustics caused by the coalescence of the diffraction points are derived. This creates a new curvature dependent diffraction coefficient that has not been previously accounted for in the UTD. The far-zone radiation by a short monopole mounted on an elliptic disk is analyzed using this caustic corrected UTD solution. Theoretical results are verified in the principal plane by comparison with a method of moments solution. The resulting solution for the radiated field is accurate and fast to compute.<>

Keywords

antenna radiation patterns; geometrical theory of diffraction; monopole antennas; caustic corrected UTD solution; curvature dependent diffraction coefficient; curved edge; diffraction points; elliptic disk; far-zone radiation; flat plate; method of moments solution; principal plane; radiated field; short monopole; uniform geometrical theory of diffraction; Frequency; Geometry; Laboratories; Moment methods; Optical diffraction; Physical optics; Physical theory of diffraction;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1994. AP-S. Digest

Conference_Location

Seattle, WA, USA

Print_ISBN

0-7803-2009-3

Type

conf

DOI

10.1109/APS.1994.407680

Filename

407680