Coaxial horn antenna system
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United States of America Patent
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Jan 3, 2006
Grant Date -
Apr 28, 2005
app pub date -
Oct 27, 2003
filing date -
Oct 27, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An antenna feed system includes a plurality of RF horn antennas (201, 202) for operating on a plurality of RF frequency bands. A first one of the feed horns (202) can have a boresight axis and is configured for operating at a first one of the frequency bands. A second one of the feed horns (201) is positioned coaxially within the first one of the feed horns (202) and is configured for operating at least at a second one of the frequency bands. Further, the first one of the feed horns (202) is a corrugated horn that has a plurality of corrugations (204) formed on an interior surface defining a profile. The profile extends substantially from a throat (205) of the first feed horn and along a tapered portion of the first feed horn. The profile substantially minimizes an interaction of the corrugations with the second feed horn.
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