X-band polarization rotator and feed horns for 150-foot paraboloid at the Algonquin Radio Observaotory

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DOIResolve DOI: http://doi.org/10.4224/21274538
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TypeTechnical Report
Series titleReport (National Research Council of Canada. Radio and Electrical Engineering Division : ERB); no. ERB-735
Physical description30 p.
AbstractA series of four feed horns and an X-band polarization rotator were required for prime focus testing of the 150-foot paraboloid at the Algonquin Radio Observatory. The specified restriction on variation in loss or VSWR with polarization rotation was quite severe in order that source polarization measurements could be made. The design bandwidth was ten percent, centered at 10.690 GHz. The series of four feed horns gave a maximum and minimum edge illumination of -9.9 and -20.1 db, respectively. Secondary patterns of the paraboloid were calculated, both with and without feed-leg shadowing being considered. Over-all gain and aperture efficiency calculations were made, considering each of the feed horns.
Publication date
PublisherNational Research Council of Canada, Radio and Electrical Engineering Division
LanguageEnglish
AffiliationNational Research Council Canada
Peer reviewedNo
NPARC number21274538
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Record identifierf8f99787-cf52-4962-8e12-72b6f765b345
Record created2015-03-16
Record modified2017-03-27
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