H - Electricity – 01 – Q
Patent
H - Electricity
01
Q
H01Q 21/00 (2006.01) H01Q 13/10 (2006.01) H01Q 25/02 (2006.01)
Patent
CA 2095052
A compact wide-band panel antenna is modified to provide a dual-mode antenna system with improved operation, particularly in the presence of interfering signals and varying reception conditions in mobile communications applications. A hybrid junction arrangement is used to combine received signals in sum and difference modes suitable for adaptive processing. Signal transmission is provided by reciprocal operation, with a circulator incorporated for signal isolation. The dual mode capability provides previously unavailable performance in a small, economical broad-band antenna.
Bae Systems Aerospace Inc.
Hazeltine Corporation
Johnson Douglas S. Q.c.
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