Baseband linearizer for wideband, high power, nonlinear amplifie

Details Baseband linearizer for wideband, high power, nonlinear amplifie Baseband linearizer for wideband, high power, nonlinear amplifie

1982-02-22

1984-07-24

Mullins, James B.

Amplifiers

Hum or noise or distortion bucking introduced into signal...

328163, 375 57, H03F 132

Patent

active

044620012

ABSTRACT:
The baseband linearizer attenuates the amplitude of the in-phase and quadrature phase components of the baseband signal as a function of the transfer characteristic of the high power amplifier and under the control of a baseband signal power level detector. The phase angle of the attenuated signal is rotated as a function of the amplifier transfer characteristic, again under the control of the power level detector.

REFERENCES:
patent: 3675138 (1972-07-01), Standing
patent: 4291277 (1981-09-01), Davis et al.
patent: 4308618 (1981-12-01), Levy et al.
Graeme et al., Operational Amplifiers, Design & Applications, McGraw-Hill 1971, pp. 236-265.
Satoh et al., "Nonlinear Satellite Channel Design for QPSK/TDMA Transmission," Fifth International Conference on Digital Communications by Satellite, Genoa, Italy, 1981, pp. 47-54.

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