Microwave solid-state amplifier
    1.
    发明授权
    Microwave solid-state amplifier 失效
    微波固态放大器

    公开(公告)号:US4647869A

    公开(公告)日:1987-03-03

    申请号:US798441

    申请日:1985-11-15

    CPC分类号: H03F3/602

    摘要: Disclosed is a microwave solid-state amplifier arranged such that a plurality of amplifier units are used in combination of a radial cavity resonator so as to perform power dividing/combining, and that in order to make the microwave solid-state amplifier capable of performing a wide band operation and have less circuit loss, a coupling portion between the radial cavity resonator and each of the amplifier units is formed such that a loop-like conductor constituted by a stripline forming an input/output portion of the amplifier unit is removably inserted through a slot formed in a side wall surface of the cavity resonator.

    摘要翻译: 公开了一种布置成使得多个放大器单元组合使用的径向空腔谐振器以进行功率分配/组合的微波固态放大器,并且为了使微波固态放大器能够执行 宽带操作并且具有较小的电路损耗,形成径向空腔谐振器和每个放大器单元之间的耦合部分,使得由形成放大器单元的输入/输出部分的带状线构成的环状导体可移除地插入通过 形成在空腔谐振器的侧壁表面中的槽。

    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分类号: G01S7/023 G01S13/60 G01S7/36

    摘要: 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.

    摘要翻译: 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分类号: G01S13/92 G01S7/032

    摘要: 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.

    摘要翻译: 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。

    Microwave integrated circuit device for transmission/reception of a
signal
    6.
    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

    摘要: 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.

    摘要翻译: 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。

    Radio station system
    8.
    发明授权
    Radio station system 失效
    广播电台系统

    公开(公告)号:US4231116A

    公开(公告)日:1980-10-28

    申请号:US963431

    申请日:1978-11-24

    IPC分类号: H04B1/50

    CPC分类号: H04B1/50

    摘要: In a radio station system utilizing multi-channel transmission and reception frequencies of the type comprising a transmitter and a receiver wherein the frequency difference between the transmission and reception frequencies is made to be equal to an intermediate frequency, there is provided a source of multi-frequency signal which determines the multi-channel transmission and reception frequencies. The output of the multi-frequency signal source is utilized directly as a local oscillation signal of the receiver and the frequency of the output of the multi-frequency signal source is shifted by a modulated wave having a frequency twice the intermediate frequency and the frequency shifted output is utilized as the transmission frequency.

    摘要翻译: 在使用包括发射机和接收机的类型的多信道发射和接收频率的无线电台站系统中,其中使发射和接收频率之间的频率差等于中间频率, 确定多频道发送和接收频率的频率信号。 多频信号源的输出被直接用作接收机的本地振荡信号,并且多频信号源的输出频率偏移了频率为中频和频偏两倍的调制波 输出用作传输频率。

    Microstrip array antenna
    9.
    发明授权
    Microstrip array antenna 失效
    微带阵列天线

    公开(公告)号:US5181042A

    公开(公告)日:1993-01-19

    申请号:US745272

    申请日:1991-08-12

    IPC分类号: H01Q21/00

    CPC分类号: H01Q21/0075

    摘要: A planar microstrip array antenna with a beam tilt, which comprises a plurality of pairs of circularly polarized wave radiating elements, the orientation angles of the two radiating elements in each pair being different by a predetermined angle within the plane of the planar antenna. The antenna further comprises a feed line for supplying electric power to the radiating elements. The feed line is provided with a plurality of pairs of terminal feeding portions which diverge corresponding individually to the pairs of circularly polarized wave radiating elements. The paired feeding portions are equal in electrical length. Since the respective orientation angles of the paired radiating elements are different, a phase difference is produced between the radiating elements, thus providing a beam tilt. Since no phase shift portion for producing a phase difference is formed between the paired terminal feeding portions, the configuration of the feed line is simple.

    摘要翻译: 具有光束倾斜的平面微带阵列天线,其包括多对圆偏振波辐射元件,每对中的两个辐射元件的取向角在平面天线的平面内不同预定角度。 天线还包括用于向辐射元件供电的馈线。 馈电线设置有多对端子馈电部分,其分别对应于圆偏振波辐射元件对。 成对的馈电部分的电长度相等。 由于成对的辐射元件的各取向角不同,所以在辐射元件之间产生相位差,从而提供光束倾斜。 由于在成对的端子供给部之间没有形成用于产生相位差的相移部,所以供给线的结构简单。

    Microwave heating apparatus
    10.
    发明授权
    Microwave heating apparatus 失效
    微波加热装置

    公开(公告)号:US4176266A

    公开(公告)日:1979-11-27

    申请号:US763088

    申请日:1977-01-27

    IPC分类号: H05B6/72 H05B9/06

    CPC分类号: H05B6/72

    摘要: Microwave heating apparatus comprising a fan beam radiator exhibiting a pattern of microwave radiation which is concentrated in the angular direction and less concentrated in the radial direction with respect to a shaft set substantially at the center of an oven and rotating a microwave beam and an article to-be-heated relative to each other, thereby to uniformly heat the article by applying the rotating beam.

    摘要翻译: 微波加热装置包括:风扇光束辐射器,其呈现微波辐射的图案,该散热器辐射集中在角度方向上,并且相对于基本上位于烘箱中心的轴组件在径向方向上较少集中,并将微波束和物品旋转到 相对于彼此加热,从而通过施加旋转梁来均匀地加热制品。