POWER AMPLIFIER WITH SELF ALIGNED PEAKING STAGE
First Claim
1. Radio frequency (RF) power amplifier (PA) circuitry comprising:
- an amplifier stage configured to receive and amplify an RF input signal to provide an RF output signal;
gain compensation circuitry coupled in parallel with the amplifier stage and configured to receive the RF input signal and provide a gain compensation signal, wherein the gain compensation signal is configured to linearize at least a portion of a gain response of the amplifier stage; and
an adder coupled between an output of the amplifier stage and the gain compensation circuitry and configured to receive and add the RF output signal and the gain compensation signal to provide a linearized RF output signal.
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Accused Products
Abstract
RF PA circuitry includes an amplifier stage, gain compensation circuitry, and an adder. The amplifier stage is configured to receive and amplify an RF input signal to provide an RF output signal. The gain compensation circuitry is coupled in parallel with the amplifier stage and configured to receive the RF input signal and provide a gain compensation signal, wherein the gain compensation signal is configured to linearize at least a portion of the gain response of the amplifier stage or the RF PA circuitry in general. The adder is coupled between an output of the amplifier stage and the gain compensation stage and is configured to receive and add the RF output signal and the gain compensation signal to provide a linearized RF output signal.
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Citations
22 Claims
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1. Radio frequency (RF) power amplifier (PA) circuitry comprising:
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an amplifier stage configured to receive and amplify an RF input signal to provide an RF output signal; gain compensation circuitry coupled in parallel with the amplifier stage and configured to receive the RF input signal and provide a gain compensation signal, wherein the gain compensation signal is configured to linearize at least a portion of a gain response of the amplifier stage; and an adder coupled between an output of the amplifier stage and the gain compensation circuitry and configured to receive and add the RF output signal and the gain compensation signal to provide a linearized RF output signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 22)
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20. Radio frequency (RF) power amplifier (PA) circuitry comprising:
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a driver amplifier stage configured to receive and amplify an RF input signal to provide an intermediate RF signal; driver stage gain compensation circuitry coupled in parallel with the driver amplifier stage and configured to receive the RF input signal and provide a driver stage gain compensation signal, wherein the driver stage gain compensation signal is configured to linearize at least a portion of a gain response of the driver amplifier stage; a driver stage adder coupled between an output of the driver amplifier stage and the driver stage gain compensation circuitry and configured to receive and add the intermediate RF signal and the driver stage gain compensation signal to provide a linearized intermediate RF signal; an output amplifier stage configured to receive and amplify the linearized intermediate RF signal to provide an RF output signal; output stage gain compensation circuitry coupled in parallel with the driver amplifier stage and configured to receive the linearized intermediate RF signal and provide an output stage gain compensation signal, wherein the output stage gain compensation signal is configured to linearize at least a portion of the gain response of the driver amplifier stage; and an output stage adder coupled between an output of the output amplifier stage and the output stage gain compensation circuitry and configured to receive and add the RF output signal and the output stage gain compensation signal to provide a linearized RF output signal. - View Dependent Claims (21)
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Specification