A wide-band prime-focus horn for low-noise receiver applications

Author

Thomas, B. Maca ; Greene, K.J. ; James, G.L.

Author_Institution

Div. of Radiophys., CSIRO, Epping, NSW, Australia

Volume

38

Issue

11

fYear

1990

fDate

11/1/1990 12:00:00 AM

Firstpage

1898

Lastpage

1900

Abstract

A horn suitable for a prime-focus antenna requiring low cross polarization, wide bandwidth, and low spillover is described. The design is particularly suited for low-noise applications such as high-quality satellite earth-station antennas and radio telescopes. The horn has a return loss substantially better than 20 dB, a cross polar sidelobe level better than -20 dB, a beamwidth variation of 40% and negligible phase center shift

Keywords

directive antennas; radiotelescopes; receiving antennas; satellite antennas; satellite ground stations; beamwidth variation; cross polar sidelobe level; design; low cross polarization; low spillover; low-noise receiver; phase center shift; prime-focus antenna; radio telescopes; return loss; satellite earth-station antennas; wide bandwidth; wideband prime focus horn; Antennas and propagation; Eigenvalues and eigenfunctions; Electromagnetic diffraction; Electromagnetic propagation; Electromagnetic scattering; Microwave antenna arrays; Microwave propagation; Physical theory of diffraction; Radar antennas; Wideband;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.102759

Filename

102759