Frequency-Based Predistortion Signal Generation

    公开(公告)号:US20230318636A1

    公开(公告)日:2023-10-05

    申请号:US17657336

    申请日:2022-03-30

    CPC classification number: H04B1/0458 H04L5/0048 H04B1/525 H04B2001/0425

    Abstract: An apparatus is disclosed for frequency-based predistortion signal generation. In an example aspect, the apparatus includes a predistortion linearizer circuit configured to be coupled to an input of an amplifier. The amplifier has non-linearities associated with multiple frequencies. The multiple frequencies include a first subset of frequencies and a second subset of frequencies. The predistortion linearizer circuit is also configured to accept an input signal. The predistortion linearizer circuit is additionally configured to generate, based on the input signal, a compensation signal to attenuate the non-linearities existing within the first subset of frequencies more than the non-linearities existing within the second subset of frequencies. The predistortion linearizer circuit is further configured to generate a pre-distorted signal based on the input signal and the compensation signal.

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