Communications: radio wave antennas – Antennas – Wave guide type
Reexamination Certificate
2006-01-03
2006-01-03
Chen, Shih-Chao (Department: 2821)
Communications: radio wave antennas
Antennas
Wave guide type
C343S7810CA, C343S786000
Reexamination Certificate
active
06982679
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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Durham Timothy E.
Gothard Griffin K.
Kralovec Jay A.
Chen Shih-Chao
Harris Corporation
Sacco & Associates PA
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