Amplifiers – With amplifier bypass means
Patent
1999-01-07
2000-12-26
Pascal, Robert
Amplifiers
With amplifier bypass means
330149, H03F 126
Patent
active
061666017
ABSTRACT:
A super-linear feedforward amplifier, for amplifying radio-frequency input signals produced in one or more frequency channels over an input band, includes a radio-frequency power amplifier, which amplifies the signals. A signal cancellation circuit loop generates an error signal responsive to distortion products in the amplified signals. A digital correction block digitally equalizes the input signals responsive to a transfer function of the amplifier, whereby the input signals are substantially canceled out of the error signal over the entire input band. An error cancellation circuit loop subtracts the error signal from the amplified signals to generate a linearized output signal.
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Arison Danny
Kaufman Kalman
Shalom Yuval
Nguyen Khanh Van
Pascal Robert
WiseBand Communications Ltd.
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