ANALOG AMPLITUDE PRE-DISTORTION CIRCUIT AND METHOD
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United States of America Patent
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Issued Date -
Jan 18, 2024
app pub date -
Jul 7, 2023
filing date -
Jul 13, 2022
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Abstract
An analog amplitude pre-distortion circuit and method. The circuit includes a Radio Frequency, RF, input for receiving an RF signal. The circuit also includes an amplifier stage comprising an amplifier stage input for receiving the RF signal from the RF input, wherein the amplifier stage is operable to amplify the RF signal to produce an amplified RF signal. The circuit further includes a bias circuit. The bias circuit includes a detector stage for detecting an amplitude of the RF signal, and for producing a correction signal based on the amplitude of the RF signal. The bias circuit also includes a bias application stage coupled to the amplifier stage input.
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