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Published December 2017 | public
Journal Article

Quadruple-Ridged Flared Horn Operating from 8 to 50 GHz


This communication proposes a compact, high performance, quadruple-ridged flared horn (QRFH) operating from 8 to 50 GHz. A prototype fed by two coaxial connectors has been designed and fabricated based on the combination of a four-petal structure and a back plate. Measurements show that the input reflection coefficients are below -10 dB over more than 6:1 frequency range. Radiation patterns were measured in an anechoic chamber, and good agreement was found with the simulated results. Physical optics calculations predict an average of 68% aperture efficiency with the feed installed on the SKA-shaped offset Gregorian reflector. The horn is a good demonstration at very high frequencies of a wideband feed for radio telescopes.

Additional Information

© 2017 IEEE. Manuscript received March 3, 2017; revised September 23, 2017; accepted September 27, 2017. Date of publication October 6, 2017; date of current version November 30, 2017. This work was supported by the National Natural Science Foundation of China under Grant 61427801, Grant 61771127, Grant U1536123, Grant U1536124, and Grant 11403080.

Additional details

August 19, 2023
October 17, 2023