Design of profiled corrugated horns

Author

Olver, David A. ; Xiang, Jun

Author_Institution

Queen Mary Coll., London Univ., UK

Volume

36

Issue

7

fYear

1988

fDate

7/1/1988 12:00:00 AM

Firstpage

936

Lastpage

940

Abstract

The design principles used to realize smoothly profiled corrugated horns are described. The smooth profiling causes power to be converted to higher order HE/sub 12/ modes which radiate to produce high sidelobes in the copolarization patterns. A computer-aided spherical modal-matching technique is used to study the higher-order mode conversion. The results show good agreement with measurements. A profiled horn using a series of discrete conical sections is proposed to eliminate most of the mode conversion. A horn designed in this way is presented and shown to possess improved performance characteristics in comparison to a smoothly profiled design.<>

Keywords

antenna feeders; antenna radiation patterns; waveguide antennas; computer-aided spherical modal-matching technique; copolarization patterns; corrugated horns; design principles; discrete conical sections; feed horn; high sidelobes; higher order HE/sub 12/ modes; higher-order mode conversion; horn antenna; smooth profiling; Apertures; Feeds; Frequency; Horn antennas; Impedance; Planar waveguides; Polarization; Reflector antennas; Space vehicles; Waveguide transitions;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.7198

Filename

7198