Telecommunications – Transmitter and receiver at same station – With frequency stabilization
Patent
1996-10-29
1999-04-27
Eisenzopf, Reinhard J.
Telecommunications
Transmitter and receiver at same station
With frequency stabilization
455 63, 455 87, 455119, 455126, 375296, H04B 140
Patent
active
058989064
ABSTRACT:
A system and method for implementing a cellular radio transmitter device comprises a first oscillator device for generating a first oscillator output signal, a second oscillator device for generating a second oscillator output signal, a power amplifier for amplifying the second oscillator output signal to obtain a transmit signal, a mixer device for combining the first oscillator output signal and the transmit signal to produce a mixer output signal, a phase comparator for comparing the mixer output signal and a transmitter input signal and responsively generating a control signal to control the transmit oscillator, and a feedback path for adding the mixer output signal to the transmitter input signal to compensate for distortion present in the transmit signal.
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Eisenzopf Reinhard J.
GEC Plessey Semiconductors, Inc.
Koerner Gregory J.
To Doris
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