Earth terminal for satellite communication

Communications: radio wave antennas – Antennas – Wave guide type

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343713, 343851, 343915, H01Q 1914

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048334847

ABSTRACT:
An earth terminal for a satellite communication system incorporates an oval or eliptical shaped antenna 1 whose horizontal dimension d.sub.1 is greater than it's vertical dimension d.sub.2. The relatively small dimension d.sub.2 allows the antenna to be transported by road while at the same time giving a beam shape which is broader in elevation than in azimuth. This special beam shape gives certain advantages which are described in the specification.

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patent: 4309708 (1982-01-01), Sayovitz
patent: 4314253 (1982-02-01), Sayovitz
B. H. Burdine et al, "A Low Sidelobe Earth Station Antenna for the 4/6 GHz Band", Microwave Journal, vol. 23, No. 11, Nov. 1980, pp. 53-58.
H. P. Coleman et al, "Low Sidelobe Antennas for Millimeter Wave Communications Systems", AP-S International Symposium, IEEE, 1975, pp. 240-243.
Kenichi Kagoshima et al, "A 30/20 GHz Band High-Efficiency Small Earth-Station Anteena with Elliptical Beam", ICC'81 International Conference on Communications, vol. 2, Jun. 14-18th, 1981, pp. 26.41.1-26.4.5.
G. P. Heckert, "Readily Transportable Earth Stations for Satellite Communications", ICC'80 International Conference on Communications, vol. 3, Jun. 8th-12th, 1980, pp. 36.4.3-36.4.4.
R. B. Dybdal et al, "Horn Antenna Sidelobe Reduction Using Absorber Tunnels", IEEE AP-S International Symposium, 1977, pp. 324-327.

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