Abstract: A linearizer for an amplifier includes an adaptation controller having M monitor signals as inputs. The controller outputs M control settings. The adaptation controller determines M uncorrelated adjustment settings from the M monitor signal inputs. Using the M uncorrelated adjustment settings, the controller adjusts the M control settings for the linearizer.

Abstract: An amplifier linearizer includes a signal adjuster having an internal signal, and an adaptation controller for monitoring the signal adjuster. The internal signal at an input to the adaptation controller is deemed a monitor signal. The adaptation controller generates a control signal for the signal adjuster by accounting for a difference between the internal and monitor signals.

Abstract: Procedures for decorrelating the branch signals of a signal adjuster of an amplifier linearizer are presented herein. The decorrelation procedures can be performed with or without self-calibration.

Abstract: A feedforward amplifier is disclosed in which either the main amplifier or the auxiliary amplifier includes at least three parallel signal paths. Each of the signal paths includes a complex gain adjuster. In addition, a feedforward amplifier is disclosed in which a plurality of control linearizers compensate for nonlinearities in the response of signal adjusters to control inputs.

Abstract: An amplifier linearizer includes a signal adjuster having an internal signal, and an adaptation controller for monitoring the signal adjuster. The internal signal at an input to the adaptation controller is deemed a monitor signal. The adaptation controller generates a control signal for the signal adjuster by accounting for a difference between the internal and monitor signals.

Abstract: A feedforward amplifier is disclosed in which either the main amplifier or the auxiliary amplifier includes at least three parallel signal paths. Each of the signal paths includes a complex gain adjuster. In addition, a feedforward amplifier is disclosed in which a plurality of control linearizers compensate for nonlinearities in the response of signal adjusters to control inputs.

Abstract: An amplifier linearizer includes a signal adjuster having an internal signal, and an adaptation controller for monitoring the signal adjuster. The internal signal at an input to the adaptation controller is deemed a monitor signal. The adaptation controller generates a control signal for the signal adjuster by accounting for a difference between the internal and monitor signals.

Abstract: Procedures for decorrelating the branch signals of a signal adjuster of an amplifier linearizer are presented herein. The decorrelation procedures can be performed with or without self-calibration.

Abstract: An amplifier linearizer circuit has a signal cancellation circuit including a signal adjuster having M branch signals (M≧1), and a distortion cancellation circuit including a signal adjuster having N branch signals (N≧1). The linearizer has a controller for adaptively controlling the M-branch and N-branch signal adjusters. The controller has only one monitor receiver to monitor the M branch signals and only one monitor receiver to monitor the N branch signals.

Abstract: A feedforward amplifier is disclosed in which either the main amplifier or the auxiliary amplifier includes at least three parallel signal paths. Each of the signal paths includes a complex gain adjuster. In addition, a feedforward amplifier is disclosed in which a plurality of control linearizers compensate for nonlinearities in the response of signal adjusters to control inputs.

Abstract: An amplifier linearizer includes a signal adjuster having an internal signal, and an adaptation controller for monitoring the signal adjuster. The internal signal at an input to the adaptation controller is deemed a monitor signal. The adaptation controller generates a control signal for the signal adjuster by accounting for a difference between the internal and monitor signals.

Abstract: An amplifier linearizer circuit has a signal cancellation circuit including a signal adjuster having M branch signals (M≧1), and a distortion cancellation circuit including a signal adjuster having N branch signals (N≧1). The linearizer has a controller for adaptively controlling the M-branch and N-branch signal adjusters. The controller has only one monitor receiver to monitor the M branch signals and only one monitor receiver to monitor the N branch signals.

Abstract: An amplifier linearizer circuit has a signal cancellation circuit including a signal adjuster having M branch signals (M≧1), and a distortion cancellation circuit including a signal adjuster having N branch signals (N≧1). The linearizer has a controller for adaptively controlling the M-branch and N-branch signal adjusters. The controller has only one monitor receiver to monitor the M branch signals and only one monitor receiver to monitor the N branch signals.

Abstract: Procedures for decorrelating the branch signals of a signal adjuster of an amplifier linearizer are presented herein. The decorrelation procedures can be performed with or without self-calibration.

Abstract: An amplifier linearizer includes a signal adjuster having an internal signal, and an adaptation controller for monitoring the signal adjuster. The internal signal at an input to the adaptation controller is deemed a monitor signal. The adaptation controller generates a control signal for the signal adjuster by accounting for a difference between the internal and monitor signals.

Abstract: A feedforward amplifier is disclosed in which either the main amplifier or the auxiliary amplifier includes at least three parallel signal paths. Each of the signal paths includes a complex gain adjuster. In addition, a feedforward amplifier is disclosed in which a plurality of control linearizers compensate for nonlinearities in the response of signal adjusters to control inputs.

Abstract: A feedforward amplifier is disclosed in which either the main amplifier or the auxiliary amplifier includes at least three parallel signal paths. Each of the signal paths includes a complex gain adjuster. In addition, a feedforward amplifier is disclosed in which a plurality of control linearizers compensate for nonlinearities in the response of signal adjusters to control inputs.

Abstract: A feedforward amplifier is disclosed in which either the main amplifier or the auxiliary amplifier includes at least three parallel signal paths. Each of the signal paths includes a complex gain adjuster. In addition, a feedforward amplifier is disclosed in which a plurality of control linearizers compensate for nonlinearities in the response of signal adjusters to control inputs.

Abstract: A feedforward amplifier is disclosed in which either the main amplifier or the auxiliary amplifier includes at least three parallel signal paths. Each of the signal paths includes a complex gain adjuster. In addition, a feedforward amplifier is disclosed in which a plurality of control linearizers compensate for nonlinearities in the response of signal adjusters to control inputs.

Abstract: A feed forward amplifier circuit for amplifying an input signal to produce an amplified replica thereof. A first splitter splits the input signal into first and second signal cancellation branches. The first signal cancellation branch contains an amplifier and a first "delay, gain and phase adjuster" (DGPA) connected in series between a-first output of the first splitter and the amplifier; and, a second splitter connected in series with the amplifier's output for splitting the amplified output signal into first and second distortion cancellation branches. The second signal cancellation branch contains a first delay line connected in series between a second output of the first splitter and a first input of a first combiner. The second splitter has a first output coupled to a second input of the first combiner. The first distortion cancellation branch contains a second delay line connected in series between a second output of the second splitter and a first input of a second combiner.