METHOD FOR MEASURING SENSITIVITY OF RECEIVER

    公开(公告)号:US20240364433A1

    公开(公告)日:2024-10-31

    申请号:US18646748

    申请日:2024-04-25

    申请人: MEDIATEK INC.

    IPC分类号: H04B17/20 H04B17/21

    CPC分类号: H04B17/203 H04B17/21

    摘要: A method for measuring a sensitivity of a receiver is provided. The method includes: during a first stage, controlling a signal generator to transmit an input test signal to an input node of the receiver, wherein the receiver generates an output test signal on a first output node of the receiver according to the input test signal; calculating a path loss from the input node of the receiver to the first output node of the receiver according to the input test signal and the output test signal; during a second stage, measuring an output noise power on a second output node of the receiver after a load is connected to the input node of the receiver; and calculating the sensitivity of the receiver according to the path loss and the output noise power. The load may be an antenna or a 50-ohm impedance load.

    POWER DETECTOR
    6.
    发明公开
    POWER DETECTOR 审中-公开

    公开(公告)号:US20240219439A1

    公开(公告)日:2024-07-04

    申请号:US18541617

    申请日:2023-12-15

    发明人: Alessandro VENCA

    摘要: A power detector for detecting the RMS power of an AC voltage includes a transconductor configured to receive the AC voltage and to provide a first current to a node with a non-linear relation between the first current and the voltage. A current output digital to analog converter is configured to receive a digital signal and to provide a second current to the node. A low pass filter is coupled to the node, and an inverter is coupled to the node and configured to provide a binary signal.

    MEASUREMENT SYSTEM AND METHOD FOR MEASURING AND ANALYZING MODULATED SIGNALS

    公开(公告)号:US20240214084A1

    公开(公告)日:2024-06-27

    申请号:US18362063

    申请日:2023-07-31

    IPC分类号: H04B17/20

    CPC分类号: H04B17/25 H04B17/201

    摘要: The invention relates to a measurement system, including a signal analyzer or monitoring receiver, for measuring and analyzing modulated signals. The system includes a signal acquisition device having input port(s), wherein the signal acquisition device is configured to capture modulated signal(s) applied to the input ports, wherein each captured modulated signal can be represented as an I/Q signal; wherein the signal acquisition device generates at least two digital I/Q data streams based on the one or more modulated signals, wherein the at least two digital I/Q data streams are generated in parallel. The measurement system includes a selection device to select at least one target frequency bandwidth in each of the at least two digital I/Q data streams; and a signal processing device configured to analyze the at least two digital I/Q data streams in the selected target frequency bandwidths.

    METHOD FOR DETERMINING A NONLINEARITY CHARACTERISTIC OF A RECEIVER PATH AND RF DEVICE

    公开(公告)号:US20240137135A1

    公开(公告)日:2024-04-25

    申请号:US18483997

    申请日:2023-10-10

    IPC分类号: H04B17/13 H04B17/14 H04B17/20

    摘要: A method for determining a nonlinearity characteristic of a receiver path includes generating a set of N×M digital samples by repeating N times selecting an scaling factor from a set of N scaling factors, generating a version of a test signal, the version of the test signal corresponding to a test signal scaled by the respective scaling factor, processing the respective version of the test signal in at least a part of the receiver path to generate a respective processed signal, and storing M digital samples corresponding to the respective processed signal. Fourier-transformed data are generated using at least a portion of the set of N×M digital samples and a nonlinearity characteristic of the receiver path is determined based on the Fourier-transformed data.