Performance of two linearly-polarized broadband horns on a small circular platform

Author

Radway, Matthew J. ; Filipovic, Dejan S.

Author_Institution

Dept. of Electr., Comput., & Energy Eng., Univ. of Colorado Boulder, Boulder, CO, USA

fYear

2012

fDate

8-14 July 2012

Firstpage

1

Lastpage

2

Abstract

The patterns and fundamental-mode port-to-port isolation of a pair of linearly-polarized 18-40 GHz horn antennas mounted in a cross-polarized configuration on a circular platform is studied, and compared to the case of a single aperture center-mounted. The first configuration is one where the apertures are mounted along the platform centerline, and the apertures are moved off the centerline in the second configuration. It is found that despite fabrication errors near the radiating aperture causing a break in symmetry, the centerline-mounted configuration has over 50 dB isolation, which is an acceptable level when both apertures are transmit-only. The broadside gain and WoW of the two configurations were found to differ by less than 1 dB.

Keywords

UHF antennas; aperture antennas; broadband antennas; horn antennas; cross-polarized configuration; fabrication errors; frequency 18 GHz to 40 GHz; fundamental-mode port-to-port isolation; linearly-polarized broadband horn antenna; radiating aperture; single aperture center-mounted antenna; small circular platform; Aperture antennas; Broadband antennas; Fabrication; Face; Gain;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE

Conference_Location

Chicago, IL

ISSN

1522-3965

Print_ISBN

978-1-4673-0461-0

Type

conf

DOI

10.1109/APS.2012.6347982

Filename

6347982