Systems and methods of RF power transmission, modulation and amplification
First Claim
1. A method for real-time amplifier class control in a power amplifier, comprising:
- determining a power level of an output waveform;
determining a desired amplifier class of operation according to said determined power level; and
controlling said power amplifier to operate according to said desired amplifier class of operation;
wherein controlling said power amplifier comprises providing a logic function by biasing said power amplifier into a non-linear switch mode.
1 Assignment
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Accused Products
Abstract
Methods and systems for vector combining power amplification are disclosed herein. In one embodiment, a plurality of signals are individually amplified, then summed to form a desired time-varying complex envelope signal. Phase and/or frequency characteristics of one or more of the signals are controlled to provide the desired phase, frequency, and/or amplitude characteristics of the desired time-varying complex envelope signal. In another embodiment, a time-varying complex envelope signal is decomposed into a plurality of constant envelope constituent signals. The constituent signals are amplified equally or substantially equally, and then summed to construct an amplified version of the original time-varying envelope signal. Embodiments also perform frequency up-conversion.
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Citations
8 Claims
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1. A method for real-time amplifier class control in a power amplifier, comprising:
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determining a power level of an output waveform; determining a desired amplifier class of operation according to said determined power level; and controlling said power amplifier to operate according to said desired amplifier class of operation; wherein controlling said power amplifier comprises providing a logic function by biasing said power amplifier into a non-linear switch mode. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus for real-time amplifier class control in a power amplifier, comprising:
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a module operable to determine a power level of an output waveform; a module operable to determine a desired amplifier class of operation according to said determined power level; and a module operable to control said power amplifier to operate according to said desired amplifier class of operation; wherein said module operable to control comprises a module operable to provide a logic function by biasing said power amplifier into a non-linear switch mode.
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Specification