Multi-beam feeding apparatus
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United States of America Patent
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Aug 10, 1999
Grant Date -
N/A
app pub date -
Mar 6, 1997
filing date -
Apr 11, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A multi-beam feeding apparatus according to the present invention is a feeding apparatus for a multi-beam antenna comprising a reflector and a primary radiator comprising a plurality of element antennas, and the apparatus is provided with a plurality of beam forming networks for setting an excitation distribution relative to the element antenna necessary for every beam. Each beam forming network is connected via a combiner (a divider) disposed to every of all the element antennas. According to this construction, not only there is such an advantage that a variation of capacity of communication between the beams and the like can be flexibly responded, but also there are such effects that a beam forming network can be so simply constructed that the same systems are only combined, a power can be more effectively used, such a problem as a heat generation and the like can be reduced. Moreover, a plurality of missions can be easily fused. Thereby, communication can be more flexible, a power loss relating to a large power transmission can be easily solved, and an necessary excitation distribution can be easily set at a low cost.
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