Patent
Co-located multi-band antenna
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TLDR
In this article, a multi-band reflector antenna having a main reflector, a sub-reflector, an antenna, a first feed and a second feed is presented. But the sub reflector may be shaped to distribute the output of the first feed reflecting off the sub- reflector onto the main reflectors, whereby a central area of the primary reflector has a lower illumination than a surrounding outer area.Abstract:
A multi-band reflector antenna having a main reflector, a sub reflector, a first feed and a second feed. The first feed, the sub reflector and the main reflector positioned in a Gregorian optic configuration wherein an output of the first feed is directed to the sub reflector, from the sub reflector to the main reflector and from the main reflector into a first beam. The sub reflector may be shaped to distribute the output of the first feed reflecting off the sub reflector onto the main reflector whereby a central area of the main reflector has a lower illumination than a surrounding outer area of the main reflector and or elongated vertically. The second feed projecting from a hole in the sub reflector is oriented whereby an output of the second feed is directed to the main reflector and from the main reflector into a second beam.read more
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Patent
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References
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Patent
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