Phase adjusted feedforward error correction

Details Phase adjusted feedforward error correction Phase adjusted feedforward error correction

1984-05-30

1986-06-17

Mullins, James B.

Amplifiers

With amplifier bypass means

330149, 330304, H03F 126

Patent

active

045958823

ABSTRACT:
There is disclosed a phase adjusted feedforward error correction system with improved linearity and bandwidth for use in high frequency systems. The feedforward system includes phase and amplitude equalizer circuits which cause a main amplifier output signal to be equal in amplitude and phase with the input signal and a second phase and amplitude equalizer circuit which causes the distortion products generated by the main amplifier to be equal in amplitude and phase with the distortion products from the main amplifier output before subtracting the distortion products from the main amplifier output signal. The phase and amplitude equalizer circuits simplify the construction of the feedforward circuit while maintaining inherent stability over the bandwidth and frequency of operation.

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