Spectral sharing communication system with minimal inter-signal

Details Spectral sharing communication system with minimal inter-signal Spectral sharing communication system with minimal inter-signal

1994-10-19

1996-04-09

Eisenzopf, Reinhard J.

Telecommunications

Receiver or analog modulated signal frequency converter

Plural receivers

455 60, 455 63, 455 69, 455303, 342366, H04B 1702

Patent

active

055070205

ABSTRACT:
A communications system is disclosed for spectrum sharing of a microwave point-to-point system and a PCS system. The invention comprises a microwave communications system. This system includes a transmitter for transmitting a first signal and a second signal. The first signal and the second signal are oppositely circularly polarized electromagnetic waves within a predefined frequency range. The system also includes a receiver for receiving the first and second signals. In the preferred embodiment of the present invention the receiver may further include a first microwave receiver for receiving the first signal. It would then include a second receiver for receiving the second signal. The receiver would also include signal combining circuitry for combining the first signal and the second signal to generate a composite signal. It would then include a signal comparator to generate a comparison signal by comparing the average value of the amplitude of the composite signal with a predetermined value. Finally, the system would include a control circuit responsive to the comparison signal for modifying the operation of the transmitter.

REFERENCES:
patent: 3093824 (1963-06-01), Ammerman
patent: 3784915 (1974-01-01), Oswald et al.
patent: 3883872 (1975-05-01), Fletcher et al.
patent: 4613990 (1986-09-01), Halpern
patent: 4723321 (1988-02-01), Saleh
patent: 5144642 (1992-09-01), Weinberg et al.

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