TRANSCEIVER DROOP CALIBRATION
    1.
    发明申请

    公开(公告)号:WO2023003667A1

    公开(公告)日:2023-01-26

    申请号:PCT/US2022/034608

    申请日:2022-06-22

    Abstract: A transceiver is configured for a calibration mode of operation in which an impedance of a transmit chain is tuned responsive to a power measurement of a mixed RF calibration signal to form a tuned transmit chain. A direct conversion mixes an RF calibration signal with a DC offset signal to form the mixed calibration signal. During a normal mode of operation, a heterodyne mixer mixes an LO signal with an IF signal to produce an RF signal that is amplified through the tuned transmit chain.

    AMPLIFIER WITH SWITCHABLE TRANSFORMER
    9.
    发明申请

    公开(公告)号:WO2022159305A1

    公开(公告)日:2022-07-28

    申请号:PCT/US2022/012010

    申请日:2022-01-11

    Abstract: In certain aspects, an apparatus includes a first amplifier having a first output and a second output, and a transformer. The transformer includes a first switchable inductor coupled between the first output and the second output, a first capacitor coupled in parallel with the first switchable inductor, a second switchable inductor magnetically coupled to the first switchable inductor, a second capacitor coupled in parallel with the second switchable inductor, a third switchable inductor magnetically coupled to the first switchable inductor, and a third capacitor coupled in parallel with the third switchable inductor.

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