High efficiency autotrack feed

Author

Cipolla, F. ; Seck, G.

Author_Institution

Datron Syst. Inc., Simi Valley, CA, USA

fYear

1989

fDate

15-18 Oct 1989

Firstpage

316

Abstract

A high efficiency autotrack feed series that uses a tracking mode coupler to generate track error signals has been developed. The mode coupler allows the use of a corrugated feed horn in doubly shaped or Cassegrain geometries to achieve extremely high overall antenna efficiencies. The extremely low loss in the mode coupler allows the incorporation of the autotrack function in an antenna system without degradation of the overall G/T or EIRP (effective isotropically radiated power). Another feature of this feed is the very low crosstalk performance, that is the cross coupling of track error signal from azimuth to elevation. Feeds of this type have been designed and built at both S- and C-band frequencies, and an X-band version is currently being designed. Other components, such as filters, amplifiers, and downconverters, have also been integrated into the feed assembly

Keywords

antenna feeders; waveguide components; C-band; Cassegrain geometry; EIRP; S-band; X-band; amplifiers; antenna efficiencies; antenna feeders; autotrack feed; azimuth; corrugated feed horn; cross coupling; doubly shaped geometry; downconverters; effective isotropically radiated power; elevation; feed assembly; filters; low crosstalk performance; low loss; track error signals; tracking mode coupler; Antenna feeds; Assembly; Azimuth; Crosstalk; Degradation; Filters; Frequency; Geometry; Horn antennas; Signal generators;

fLanguage

English

Publisher

ieee

Conference_Titel

Military Communications Conference, 1989. MILCOM '89. Conference Record. Bridging the Gap. Interoperability, Survivability, Security., 1989 IEEE

Conference_Location

Boston, MA

Type

conf

DOI

10.1109/MILCOM.1989.103946

Filename

103946