Method and System for a Highly Efficient Power Amplifier Utilizing Dynamic Biasing and Predistortion
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Accused Products
Abstract
Aspects of a method and system for a highly efficient power amplifier (PA) utilizing dynamic biasing and predistortion are presented. Aspects of the system may include a processor that enables computation of a value of a variable bias component of a bias current based on a bias slope value and an amplitude of an envelope input signal. The processor may enable computation of a value of the bias current based on the selected constant bias current component value and the variable bias current component value. A PA may enable generation of an output signal in response to a generated baseband signal by utilizing the bias current to amplify an amplifier input signal. The bias current may be generated based on the envelope input signal. A feedback signal may be generated based on the output signal, which may be used to predistort a subsequent baseband signal.
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Citations
68 Claims
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1-31. -31. (canceled)
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31. A method for biasing of a power amplifier circuit, the method comprising:
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computing a value for a variable bias current based on a selected bias slope value; and generating an output signal by amplifying an amplifier input signal, wherein a level for said amplifying is determined based on at least said variable bias current, wherein a level for said variable bias current is determined based on said computed value. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49)
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50. A system for biasing of a power amplifier circuit, the system comprising:
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one or more circuits that enable computation of a value for a variable bias current based on a selected bias slope value; and said one or more circuits enable generation of an output signal by amplifying an amplifier input signal, wherein a level for said amplifying is determined based on at least said variable bias current, wherein a level for said variable bias current is determined based on said computed value. - View Dependent Claims (51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68)
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Specification