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    CURRENT ENHANCED DRIVER FOR HIGH-POWER SOLID-STATE RADIO FREQUENCY POWER AMPLIFIERS
    5.
    发明公开
    CURRENT ENHANCED DRIVER FOR HIGH-POWER SOLID-STATE RADIO FREQUENCY POWER AMPLIFIERS 审中-公开

    公开(公告)号：EP4084343A1

    公开(公告)日：2022-11-02

    申请号：EP22172602.9

    申请日：2016-04-18

    申请人： Eridan Communications, Inc.

    发明人： KHANDAVALLI, Chandra

    IPC分类号： H04B1/16 ,  H04B1/04 ,  H04B1/06 ,  H03F1/02 ,  H03F3/193 ,  H03F3/24 ,  H03F3/30

    摘要： A high-power solid-state RFPA includes an output stage having a power transistor and a current enhanced driver that drives the output stage. The current enhanced driver includes an inductor and first and second transistors arranged in totem-pole-like configuration. When the first transistor is turned on and the second transistor is turned off, the inductor supplies a first charging current to the output stage, to assist in charging the input gate-source capacitor (Cgs) of the power transistor in the output stage. The first transistor further provides a second charging current that supplements the first charging current, thereby enhancing charging of the gate-source capacitor Cgs. Conversely, when the first transistor of the driver is turned off and the second transistor is turned on, the second transistor provides a discharge path through which the gate-source capacitor Cgs can discharge.

    COMPRESSIVE SENSING-BASED SIGNAL PROCESSING METHOD AND DEVICE
    10.
    发明授权
    COMPRESSIVE SENSING-BASED SIGNAL PROCESSING METHOD AND DEVICE 有权

    公开(公告)号：EP3110015B1

    公开(公告)日：2018-09-05

    申请号：EP14886420.0

    申请日：2014-03-20

    申请人： Huawei Technologies Co., Ltd.

    发明人： KONG, Xiangming ,  ZHU, Hufei

    IPC分类号： H04B1/06 ,  H03M7/30

    CPC分类号： H03M7/3062 ,  H03M1/1255 ,  H04B1/66

    摘要： The present invention relates to a compressive sensing-based signal processing method and apparatus. The method includes: determining distribution, of signal components of an input signal on which frequency mixing has been performed, in a baseband spectrum according to spectral distribution of the input signal; dividing the baseband spectrum according to different signal aliasing patterns formed by the distribution of the signal components, to form multiple frequency bands; determining lowest sampling frequency of the input signal according to the signal aliasing patterns in the frequency bands, and performing sampling on the input signal at sampling frequency greater than the lowest sampling frequency, to obtain a sampled signal; and separately restoring a corresponding signal component in each frequency band of the multiple frequency bands according to the sampled signal, and splicing the signal components restored in the frequency bands, to complete restoration of the input signal. In the present invention, more narrowband signals can be processed at a lower sampling rate, and various different frequency-domain sparse signals can be flexibly processed.