Telecommunications – Transmitter – With feedback of modulated output signal
Patent
1997-06-20
1999-08-10
Bost, Dwayne D.
Telecommunications
Transmitter
With feedback of modulated output signal
455 69, 455127, 455522, H01Q 1112
Patent
active
059373369
ABSTRACT:
A transmission/reception apparatus consists of a transmitter section including a gain amplifier which amplifies a gain of the transmission signal, power amplifier which amplifies the output of the gain amplifier, and transmission monitor signal extractor which extracts a transmission monitor signal from the transmission signal produced by the power amplifier, a receiver section including a coupler which couples the output of the transmission monitor signal extractor to the reception signal, low-noise amplifier which amplifies the output of the coupler, and separator which separates the output of the low-noise amplifier, and a controller including at least a gain controller which controls the gain amplifier based on a prescribed control reference and the output of the separator. The apparatus is capable of controlling the transmission output in a wide range by amplifying a weak transmission monitor signal in the receiver section.
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Bost Dwayne D.
Fujitsu Limited
Vuong Quochien Ba
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