TRANSMIT-RECEIVE SWITCH WITH INTEGRATED POWER DETECTION

    公开(公告)号:US20200295798A1

    公开(公告)日:2020-09-17

    申请号:US16737180

    申请日:2020-01-08

    Abstract: 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.

    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

    Abstract: 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.

    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

    Abstract: 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.

    Multi-mode control with fast-access lookup table implementation

    公开(公告)号:US10750377B1

    公开(公告)日:2020-08-18

    申请号:US16367711

    申请日:2019-03-28

    Abstract: An apparatus comprises a plurality of transceiver circuits, a memory, and an interface circuit. The memory generally embodies a table associating a plurality of index values with corresponding gain and phase values for each channel of each of the transceiver circuits. In a first mode, the interface circuit may be configured to receive the corresponding gain and phase values associated with each of the plurality of index values and store the corresponding gain and phase values in the table. In a second mode, the interface circuit, in response to receiving one of the index values, configures each channel of each of the transceiver circuits with the corresponding gain and phase values from the table.

    Transmit-receive switch with integrated power detection

    公开(公告)号:US10536186B1

    公开(公告)日:2020-01-14

    申请号:US16354650

    申请日:2019-03-15

    Abstract: An apparatus includes a plurality of impedance matching networks, a common port, a first switch circuit and a second switch circuit. The impedance matching networks may be (i) connected in series between an input port and an output port and (ii) configured to generate a power detection signal in response to a radio-frequency signal. The radio-frequency signal may be a transmit signal or a receive signal. The common port may be (i) connected to the impedance matching networks and (ii) connectable to an antenna. The first switch circuit may be configured to switch the input port and a circuit ground potential. The second switch circuit may be configured to switch the output port and the circuit ground potential.

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