Distortion network with channelized resistors
AssigneeSkyworks Solutions, Inc.
InventorDouglas M. Johnson
Life of this patent
Estimating the term…
Abstract
Apparatus and methods for power amplifier distortion networks are disclosed. In one aspect, there is provided a power amplifier system including a power amplifier configured to amplify a radio frequency input signal. The power amplifier including an input configured to receive the radio frequency input signal and an output configured to generate an amplified radio frequency signal. The power amplifier system further includes a distortion network electrically coupled to either the input or the output of the power amplifier. The distortion network including a plurality of channelized resistors. The channelized resistors connected in series to either an input or an output of the power amplifier.
Claims20
A power amplifier system comprising:
- a power amplifier including an input configured to receive a radio frequency input signal and an output configured to output an amplified radio frequency signal;
- and
- a distortion network electrically coupled to either the input or the output of the power amplifier, the distortion network including one or more semiconductor resistors each including a body portion doped with a first doping type, a first terminal region doped with a second doping type, and a second terminal region doped with the second doping type, a conductivity of a channel formed in the body portion between the first terminal region and the second terminal region being controlled by a voltage applied between the first terminal region and the second terminal region, and a relationship of a current of the channel vs. the voltage applied between the first terminal region and the second terminal region forming a hyperbolic curve.
A power amplifier system comprising:
- a power amplifier including an input configured to receive a radio frequency input signal and an output configured to output an amplified radio frequency signal;
- and
- a distortion network electrically coupled to either the input or the output of the power amplifier, the distortion network including one or more semiconductor resistors each including a body portion doped with a first doping type, a first terminal region doped with a second doping type, and a second terminal region doped with the second doping type, and each having a resistance that increases as a voltage applied between the first terminal region and the second terminal region increases until a point at which a channel of the semiconductor resistor saturates.
A power amplifier system comprising:
- a power amplifier including an input configured to receive a radio frequency input signal and an output configured to output an amplified radio frequency signal, the input of the power amplifier including a pair of differential inputs, and the output of the power amplifier including a pair of differential outputs;
- and
- a distortion network electrically coupled to either the input or the output of the power amplifier, the distortion network including one or more semiconductor resistors, each including a body portion doped with a first doping type, a first terminal region doped with a second doping type, and a second terminal region doped with the second doping type, a conductivity of a channel formed in the body portion between the first terminal region and the second terminal region being controlled by a voltage applied between the first terminal region and the second terminal region, and the distortion network connected between either the differential inputs or the differential outputs.
Dependencies are inferred from the claim text.