INTELSAT VII hemi/zone antennas (design and results)

Author

Ersoy, L. ; Schennum, G. ; Fenner, G. ; Bilenko, H. ; Lee, B.

fYear

1992

fDate

18-25 June 1992

Firstpage

1348

Abstract

The authors describe the design of the INTELSAT VII (I-VII) hemi/zone (H/Z) antennas, and the results of the proto-flight model acceptance testing. The correlations between the measured and calculated data, and a discussion of the results are also presented. the I-VII H/Z antennas operate at C-band and consist of two antennas, one for the receive band and the other for the transmit band. Each antenna has a single offset reflector fed by a multifeed array with over 100 feed horns. The antennas produce circular polarization. The antennas have a sixfold frequency reuse, serving four zone and two hemi coverage areas. The hemis are spatially isolated, as are the zone beams. Hemis and zones are isolated from each other via polarization. Measured and calculated farfield patterns for the largest receive (alpha) zone coverage are presented.<>

Keywords

antenna feeders; antenna radiation patterns; microwave antenna arrays; reflector antennas; satellite antennas; C-band; INTELSAT VII hemi/zone antennas; alpha receive zone coverage; circular polarization; farfield patterns; feed horns; hemi coverage areas; multifeed array; offset reflector; proto-flight model acceptance testing; receive band; sixfold frequency reuse; spatially isolated beams; transmit band; zone coverage areas; Antenna arrays; Antenna feeds; Antenna measurements; Frequency; Horn antennas; Polarization; Receiving antennas; Reflector antennas; Testing; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1992. AP-S. 1992 Digest. Held in Conjuction with: URSI Radio Science Meeting and Nuclear EMP Meeting., IEEE

Conference_Location

Chicago, IL, USA

Print_ISBN

0-7803-0730-5

Type

conf

DOI

10.1109/APS.1992.221647

Filename

221647