Transmit-receive switch with integrated power detection

    公开(公告)号:US10998931B2

    公开(公告)日:2021-05-04

    申请号:US16737180

    申请日:2020-01-08

    摘要: An apparatus includes a transmit-receive switch circuit and a detector circuit. The transmit-receive switch circuit may be connected between an input port, an output port, and a common port, and configured to switch a transmit radio-frequency signal from the input port to the common port in a transmit mode and a receive radio-frequency signal from the common port to the output port in a receive mode. The detector circuit may be integrated within the transmit-receive switch and may be configured to generate a power detection signal in response to at least one of the transmit radio-frequency signal or the receive radio-frequency signal.

    90 DEGREE DIFFERENTIAL SIGNAL LAYOUT TRANSITION

    公开(公告)号:US20190123410A1

    公开(公告)日:2019-04-25

    申请号:US15880957

    申请日:2018-01-26

    摘要: An apparatus includes a plurality of conductive layers and a plurality of traces configured to carry a plurality of signals through a change of direction. The traces may be routed parallel to each other in a first trace segment in a first of the conductive layers toward the change of direction. The traces may be routed parallel to each other in a second trace segment in a second of the conductive layers in the change of direction. One of the traces in a third trace segment in the first conductive layer may cross over another of the traces in the second trace segment in the second conductive layer in the change of direction. The traces may be routed parallel to each other in the third trace segment in the first conductive layer away from the change of direction.

    Linear-in-dB log-amp with calibration for power detection

    公开(公告)号:US10763913B1

    公开(公告)日:2020-09-01

    申请号:US16372698

    申请日:2019-04-02

    摘要: An apparatus includes a log amplifier and a calibration circuit. The log amplifier may be configured to generate an output signal in response to an offset between a first voltage and a second voltage. The calibration circuit may be configured to disconnect an input power and perform a cancellation of the offset when the input power is not present. The first voltage may be generated by the apparatus in response to a power detection. The second voltage may be received from a reference circuit. The cancellation of the offset may extend a working range of the apparatus. The output may provide a linear-in-dB power detection.

    WIDEBAND VECTOR MODULATOR AND PHASE SHIFTER
    10.
    发明申请

    公开(公告)号:US20190089308A1

    公开(公告)日:2019-03-21

    申请号:US16131296

    申请日:2018-09-14

    IPC分类号: H03F1/02 H03F3/19

    摘要: An apparatus includes a first circuit and a plurality of second circuits. The first circuit may be configured to generate a pair of quadrature signals from a radio-frequency signal. The second circuits may each comprise a plurality of cascode amplifiers. The cascode amplifiers may be connected in parallel. The cascode amplifiers may be configured to generate a plurality of intermediate signals by modulating the quadrature signals in response to a first control signal and a second control signal. The first control signal generally switches a contribution of the cascode amplifiers in the generation of the intermediate signal. The second control signal may adjusts a total current passing through all of the cascode amplifiers.