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The government of Laos with a group of private investors, called Asia Broadcasting and Communication Network Company Limited (ABCN), have purchased two satellites from Space Systems/Loral to provide satellite communications that will include direct to home (DTH) TV broadcast and VSAT across Asia Pacific. The satellites, LSTAR-1 and LSTAR-2, will be the most powerful satellites to be launched for DTH...
The conventional design approach to provide a shaped beam antenna pattern has been to illuminate a paraboloid reflector with a multielement feed array. The beam shaping is achieved by selection of the size and placement of the feed elements in the focal plane of the reflector, and the excitation coefficient which drive the elements. Recent developments at Space Systems/Loral have proven the benefits...
Shaped reflector antennas have become the standard for communication satellite antenna applications for more than five years. Another trend which is becoming evident is the requirement to provide higher power on the satellites. This requires that more beams be provided by the antenna system to make effective use of this increased power. In order to do this, more apertures, or more beams per aperture,...
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