H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 7/02 (2006.01) H04B 7/12 (2006.01) H04B 10/12 (2006.01)
Patent
CA 2270608
An apparatus for communicating, over a single transmission medium, two signals of substantially the same center frequency. The apparatus offsets in frequency one of the signals by combining the signal with the signal from a local oscillator. The apparatus then transmits the two signals, one offset from the other, as well as the signal from the local oscillator to allow for recovery of the two signals with a precise correction for the offset. In particular, the transmission medium is an optical fiber and the two signals are a main RF signal and a diversity RF signal received, respectively, by a main element and a diversity element of a diversity antenna system. The invention is of use, for example, in providing to a microbase station a main RF signal and its diversity RF signal received at a diversity antenna system remote from the microbase station and connected to the microbase station by an optical fiber.
Farris Robert L.
Larkin Robert S.
Wu Qiang
Radio Frequency Systems Inc.
Robic
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