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123 条记录 (耗时 0.026 秒)

    Down-conversion mixer
    2.
    发明授权
    Down-conversion mixer 有权

    公开(公告)号：US11533021B1

    公开(公告)日：2022-12-20

    申请号：US17528307

    申请日：2021-11-17

    申请人： National Chi Nan University

    发明人： Yo-Sheng Lin ,  Kai-Siang Lan

    IPC分类号： H03D7/14 ,  H03D3/00 ,  H04B1/10

    摘要： A down-conversion mixer includes a converting-and-mixing circuit and a load circuit. The converting-and-mixing circuit performs voltage to current conversion and mixing with a differential oscillatory voltage signal pair upon a differential input voltage signal pair to generate a differential mixed current signal pair. The load circuit includes two transistors each having a transconductance that varies according to a control voltage, two resistors each decreasing a threshold voltage of a respective one of the transistors, and a resistor-inductor circuit cooperating with the transistors to convert the differential mixed current signal pair into a differential mixed voltage signal pair.

    Voltage-controlled oscillator
    6.
    发明授权
    Voltage-controlled oscillator 有权

    公开(公告)号：US10389302B2

    公开(公告)日：2019-08-20

    申请号：US15624800

    申请日：2017-06-16

    申请人： National Chi Nan University

    发明人： Yo-Sheng Lin ,  Jin-You Liao

    IPC分类号： H03B5/12

    摘要： A voltage-controlled oscillator includes an oscillation generator, two inductors and two amplifiers. The oscillation generator generates two oscillation voltage signals based on a control voltage. Each inductor receives a respective oscillation voltage signal, and provides a respective input voltage signal. Each amplifier generates a respective current signal based on a respective input voltage signal. When one of the current signals has a magnitude that varies according to a magnitude of the respective input voltage signal, the other of the current signals has a constant magnitude. The current signals are combined into an output current signal at a common node of the amplifiers.

    Injection locked frequency divider
    7.
    发明授权
    Injection locked frequency divider 有权

    公开(公告)号：US10326459B1

    公开(公告)日：2019-06-18

    申请号：US16126881

    申请日：2018-09-10

    申请人： NATIONAL CHI NAN UNIVERSITY

    发明人： Yo-Sheng Lin ,  Shao-Siang Wang

    IPC分类号： H04L25/40 ,  H03L7/185 ,  H03L7/193 ,  H03L7/181 ,  H03H11/32

    摘要： An injection locked frequency divider includes a mixer circuit and a filter circuit. The mixer circuit includes two mixer units and two inductors. The mixer units mix a differential input voltage signal with a reference signal to output a differential current signal. The inductors cooperatively receive the differential current signal from the mixer units. The filter circuit is connected to the inductors, and filters the differential current signal to output a filtered differential voltage signal.

    Mixer
    8.
    发明授权
    Mixer 有权

    公开(公告)号：US10298176B2

    公开(公告)日：2019-05-21

    申请号：US15451024

    申请日：2017-03-06

    申请人： National Chi Nan University

    发明人： Yo-Sheng Lin ,  Ching-Hung Peng

    IPC分类号： G06G7/12 ,  H03D7/12 ,  H03H11/32 ,  H03D7/14 ,  H01P5/10

    摘要： A mixer includes a transconductance circuit and a mixing circuit. The transconductance circuit includes a capacitor and first and second transconductance modules. The first transconductance module converts a single-ended to-be-shifted voltage signal at a first terminal of the capacitor into a first input current signal. The second transconductance module converts a voltage signal at a second terminal of the capacitor into a second input current signal that cooperates with the first input current signal to constitute a differential input current signal pair. The mixing circuit mixes the differential input current signal pair with a differential oscillatory voltage signal pair to generate a differential mixed voltage signal pair.