Regenerative rf bidirectional amplifier system

Details Regenerative rf bidirectional amplifier system Regenerative rf bidirectional amplifier system

H - Electricity

04

B

325/10

H04B 7/155 (2006.01) H04B 3/38 (2006.01) H04B 5/00 (2006.01)

Patent

CA 2033796

A regenerative RF bi-directional communications system is provided for establishing RF coverage within a RF block tunnel area. The system uses a plurality of cascaded amplifier stages for periodically regenerating signals which are transmitted and received along a series of radiating cable length which link base station transceivers to hand-held or like mobile communication units. An intermediate frequency distribution system is used so that the required level of amplification is achieved through the several cascaded amplifier stages at the level of low-power IF signals generated from the original RF signals in conjunction with the appropriate oscillator and pilot signals. The IF distribution system restricts the cascading effect occurring due to the plurality of cascaded amplifier stages on the relatively low-power IF signals, thereby producing a negligible amount of intermodulation.

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