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Design and measurements of dual-polarized wideband constant-beamwidth quadruple-ridged flared horn

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3 Author(s)
Akgiray, A. ; Electr. Eng., California Inst. of Technol., Pasadena, CA, USA ; Weinreb, S. ; Imbriale, W.

A quad-ridged, flared horn achieving nearly constant beamwidth and excellent return loss over a 6-1 frequency bandwidth is presented. Radiation pattern measurements show excellent beamwidth stability from 2 to 12 GHz. Measured return loss is >; 10 dB over the entire band and >; 15 dB from 2.5 to 11 GHz. Using a custom physical optics code, system performance of a radio telescope is computed and predicted performance is average 70% aperture efficiency and 10 Kelvin of antenna noise temperature.

Published in:

Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on

Date of Conference:

3-8 July 2011

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