DocumentCode
807778
Title
Broadband compact horn feed for prime-focus reflectors
Author
Ying, Z. ; Kishk, A.A. ; Kildal, P-.S
Author_Institution
Dept. of Microwave Technol., Chalmers Univ. of Technol., Goteborg, Sweden
Volume
31
Issue
14
fYear
1995
fDate
7/6/1995 12:00:00 AM
Firstpage
1114
Lastpage
1115
Abstract
A compact flare angle controlled corrugated horn antenna with a 60° half beamwidth is optimised by using a moment method for bodies of revolution. The horn has corrugations with simple rectangular cross-sections and is excited by a smooth wall circular waveguide. The resulting 15 dB beamwidth varies by <18% and the crosspolar sidelobe levels are more than 26 dB below the mainlobe, both over a 1.8:1 bandwidth. All results are confirmed by measurements. The horn is suited for broadband feeding of e.g. prime-focus reflectors in radioastronomy applications
Keywords
antenna radiation patterns; horn antennas; method of moments; reflector antenna feeds; broadband feeding; broadband horn feed; compact horn feed; corrugated horn; flare angle controlled horn; microwave antennas; moment method; prime-focus reflectors; smooth wall circular waveguide;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19950782
Filename
398564
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