Amplifiers – With amplifier condition indicating or testing means
Patent
1996-01-30
1998-04-21
Mullins, James B.
Amplifiers
With amplifier condition indicating or testing means
330136, 330149, H03F 132
Patent
active
057422010
ABSTRACT:
Linearity of an RF/microwave power amplifier is enhanced by an amplitude and phase distortion correction mechanism based upon signal envelope feedback, that operates directly on the RF signal passing through the power amplifier. A phase-amplitude controller responds to changes in gain and phase through the RF/microwave power amplifier signal path caused by changes in RF input power, DC power supply voltages, time, temperature and other variables, and controls the operation of a gain and phase adjustment circuit, so as to maintain constant gain and transmission phase through the RF/microwave power amplifier.
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Baskin Brian L.
Brubaker David Lee
Eisenberg John A.
Mucenieks Lance Todd
Robertson, III Charles Stuart
Mullins James B.
Spectrian
Wands Charles E.
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