Power amplifier having analog pre-distortion by adaptive degenerative feedback
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United States of America
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Feb 11, 2025
Grant Date -
Jul 21, 2022
app pub date -
Dec 27, 2021
filing date -
Dec 27, 2021
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Abstract
Power amplifier having analog pre-distortion by adaptive degenerative feedback. In some embodiments, a pre-distortion circuit for an amplifier can include a transistor having an input node for receiving an input signal, an output node for providing an output signal having a gain relative to the input signal, and a common node for coupling to a ground. The pre-distortion circuit can further include a degeneration circuit implemented between the common node and the ground, with the degeneration circuit being configured to introduce a feedback response that reduces the gain when the input signal has a power level at or below a selected level. The degeneration circuit can be further configured to be disabled or provide a reduced feedback response when the input signal has a power level that exceeds the selected level.
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