H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 7/14 (2006.01) H01Q 1/00 (2006.01) H01Q 3/26 (2006.01) H01Q 21/28 (2006.01) H01Q 21/29 (2006.01) H01Q 23/00 (2006.01) H04B 7/155 (2006.01) H04Q 7/36 (2006.01)
Patent
CA 2313930
A repeater system has at least one donor antenna element for communicating with a base station and at least one link antenna element for communicating with a remote station. A radio frequency uplink path and a radio frequency downlink path are coupled between the donor antenna and the null antenna. An adaptive cancellation circuit in each of the radio frequency uplink path and the radio frequency downlink path generates a cancellation signal, which when added to a radio frequency signal in either of the radio frequency uplink and radio frequency downlink paths, substantially cancels any feedback signal present in the radio frequency signal.
Judd Mano D.
Maca Gergory A.
Andrew Corporation
Marks & Clerk
LandOfFree
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