Microwave integrated circuit device for transmission/reception of a
signal
    2.
    发明授权
    Microwave integrated circuit device for transmission/reception of a signal 失效
    用于发送/接收信号的微波集成电路装置

    公开(公告)号:US4251817A

    公开(公告)日:1981-02-17

    申请号:US85952

    申请日:1979-10-18

    Abstract: There is disclosed a microwave integrated circuit device which comprises a waveguide circuit, a short-circuiting member serving as a short-circuiting plane and having a groove in the short-circuiting plane, means for varying the effective dimensions of the groove which have effect on microwave circuit components, a microwave integrated circuit formed on an insulating substrate so disposed as to cover the groove, and a semiconductor element disposed on the microwave integrated circuit to convert the microwave signal in the waveguide circuit into a selected one of a d.c. and a low-frequency, whereby the conversion efficiency may be increased by setting the peak position of the output level characteristic of the device at a desired frequency within a certain frequency band.

    Abstract translation: 公开了一种微波集成电路器件,其包括波导电路,用作短路平面并在短路平面中具有沟槽的短路部件,用于改变有效尺寸的槽的装置 微波电路部件,形成在绝缘基板上的微波集成电路,被设置为覆盖该沟槽;以及半导体元件,设置在微波集成电路上,以将波导电路中的微波信号转换为直流 和低频,从而通过将设备的输出电平特性的峰值位置设置在特定频带内的期望频率,可以提高转换效率。

    Ground-speed Doppler radar for vehicles
    3.
    发明授权
    Ground-speed Doppler radar for vehicles 失效
    车载地面多普勒雷达

    公开(公告)号:US4354191A

    公开(公告)日:1982-10-12

    申请号:US168158

    申请日:1980-07-14

    CPC classification number: G01S7/023 G01S13/60 G01S7/36

    Abstract: A Doppler radar wherein, in order to measure the ground speed of an automobile, microwaves are radiated to the ground and the Doppler shift of reflected waves from the ground is detected, characterized in that to the end of avoiding a malfunction ascribable to an external microwave interference, when the differentiated output of the Doppler radar is greater than a threshold value, the frequency of the microwaves of the Doppler radar is controlled so as to prevent the microwave interference from taking place.

    Abstract translation: 一种多普勒雷达,其中为了测量汽车的地面速度,微波被辐射到地面,并且检测到来自地面的反射波的多普勒偏移,其特征在于,为了避免归因于外部微波的故障 干扰,当多普勒雷达的微分输出大于阈值时,控制多普勒雷达的微波频率,以防止微波干扰发生。

    Short-range doppler radar
    4.
    发明授权
    Short-range doppler radar 失效
    短程多普勒雷达

    公开(公告)号:US4319244A

    公开(公告)日:1982-03-09

    申请号:US112744

    申请日:1980-01-17

    CPC classification number: G01S13/92 G01S7/032

    Abstract: In a Doppler radar system for measuring the velocity of a vehicle, such as an automobile, in order to lessen interference with external electric wave appliances, such as radios and televisions, caused by transmitting microwaves, one of the higher harmonics generated from a mixer diode driven by the fundamental waves of a local oscillator is selected by a filter for transmission and is used as the transmission output wave, whereby the power of the transmission waves is remarkably reduced in comparison with the mixer driving power.

    Abstract translation: 在用于测量诸如汽车的车辆的速度的多普勒雷达系统中,为了减少由发射微波引起的诸如无线电和电视的外部电波设备的干扰,从混频二极管产生的高次谐波之一 由本地振荡器的基波驱动的滤波器被选择用于传输,并且被用作发射输出波,由此与混频器驱动功率相比,传输波的功率显着降低。

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