Radio direction finder
    1.
    发明授权
    Radio direction finder 失效
    无线电测向仪

    公开(公告)号:US4368470A

    公开(公告)日:1983-01-11

    申请号:US131899

    申请日:1980-03-20

    CPC分类号: G01S3/143

    摘要: A radio direction finder, which is designed to determine the direction of arrival of a radio wave by causing the rotation of a directional antenna arrangement or a goniometer, to which the output of the directional antenna arrangement is coupled, or rotating the directivity by an electric means and combining the output of the directional antenna arrangement or goniometer and the output of a non-directional antenna. With this system, it is possible to detect and display the bearing of the received radio wave with a higher place counter and precisely track and display the second bearing of the wave with a lower place counter.

    摘要翻译: 无线电测向器,其被设计成通过使定向天线装置的输出耦合到其上的定向天线装置或测角器的旋转来确定无线电波的到达方向,或者通过电动方向旋转方向性 指向和组合定向天线装置或测角器的输出和非定向天线的输出。 利用该系统,可以用较高的位置计数器检测并显示接收到的无线电波的方位,并用较低的位置计数器精确地跟踪和显示波浪的第二轴承。

    Automatic direction finder
    2.
    发明授权
    Automatic direction finder 失效
    自动取向器

    公开(公告)号:US4573053A

    公开(公告)日:1986-02-25

    申请号:US447097

    申请日:1982-12-06

    申请人: Kenzo Mori Hyo Yasuda

    发明人: Kenzo Mori Hyo Yasuda

    CPC分类号: G01S3/42 G01S3/143

    摘要: An automatic direction finder capable of measuring a direction with a higher accuracy is disclosed. In an initial measurement, loop antennas and a vertical antenna are used in a conventional manner. However, in a final measurement the vertical antenna adversely affected by the surrounding disturbances is not employed and only the loop antennas are used. The disclosed finder includes a switching device for disconnecting the vertical antenna in the final measurement. The finder is also provided with a pair of search coils disposed perpendicular to each other. One of the search coils is connected to a combining circuit via the switching device, while the other is connected to the combining circuit via a balanced modulator.

    摘要翻译: 公开了一种能够以更高精度测量方向的自动取向器。 在初始测量中,以常规方式使用环形天线和垂直天线。 然而,在最终测量中,不采用受周围干扰影响的垂直天线,并且仅使用环形天线。 所公开的取景器包括用于在最终测量中断开垂直天线的开关装置。 取景器还设置有彼此垂直设置的一对搜索线圈。 搜索线圈中的一个通过开关装置连接到组合电路,而另一个通过平衡调制器连接到组合电路。

    Automatic direction finder
    3.
    发明授权
    Automatic direction finder 失效
    自动取向器

    公开(公告)号:US4507663A

    公开(公告)日:1985-03-26

    申请号:US318925

    申请日:1981-11-06

    IPC分类号: G01S3/12 G01S3/42 G01S5/04

    CPC分类号: G01S3/42

    摘要: An automatic direction finder for automatically finding the arriving direction of electric waves by rotating a goniometer or the like with the use of a stepping motor is described. The stepping motor is controlled by means of a digital circuit using a reversible counter. The polarities of the phase of the output demodulated by a receiving circuit are detected in terms of the antinodes thereof.

    摘要翻译: 描述了通过使用步进电机旋转测角器等来自动寻找电波到达方向的自动测向器。 步进电机通过使用可逆计数器的数字电路进行控制。 根据其波腹来检测由接收电路解调的输出的相位的极性。

    Direction finder
    4.
    发明授权
    Direction finder 失效
    方向查找器

    公开(公告)号:US4040058A

    公开(公告)日:1977-08-02

    申请号:US555301

    申请日:1975-03-04

    CPC分类号: H01Q3/04 G01S3/046

    摘要: An automatic direction finder wherein a loop antenna is fitted within a combined handle and index rotatably pivoted at the center of a direction dial, a gear of a diameter large enough is fixed to said index and a pinion meshing with said gear is connected through a frictional power transmission with a direct current servomotor to which an automatically controlled output of said antenna obtained from the output of said antenna is given.

    Slot array antenna
    5.
    发明授权
    Slot array antenna 失效
    插槽阵列天线

    公开(公告)号:US07119753B2

    公开(公告)日:2006-10-10

    申请号:US10918385

    申请日:2004-08-16

    IPC分类号: H01Q13/10 H01Q13/00

    摘要: An object of the invention is to provide a slot array antenna in which unstable factors for contact of an adjustment portion comprising a slot waveguide and a waveguide holder are removed, a number of parts is decreased to save weight, and assembly is simplified. Accordingly, this invention is to constitute a radiation portion (1) unitedly formed of a slot waveguide (1a), a flare holder (1b), and a supporting portion (1d), if necessary, further adding a screen holder (1c) for a screen (4) for cross polarization suppression. Furthermore, this invention is to constitute a reinforcement feeder (2) unitedly formed of a feeder waveguide (2a), a reinforcement portion (2b) and a reinforcement connector (2c) in the case of an open type antenna.

    摘要翻译: 本发明的目的是提供一种缝隙阵列天线,其中除去包括槽波导和波导保持器的调节部分的接触不稳定因素,减少了许多部件以节省重量,并且组装简化。 因此,本发明构成由槽式波导(1a),火炬保持架(1b)和支撑部(1d)组合形成的辐射部(1),如果需要,进一步添加屏幕保持架 1 c)用于屏幕(4)用于交叉极化抑制。 此外,本发明构成在开式天线的情况下由馈电波导(2a),加强部(2b)和加强连接器(2c)组合形成的加强料斗(2)。

    Radio direction finder
    6.
    发明授权
    Radio direction finder 失效
    无线电测向仪

    公开(公告)号:US4302759A

    公开(公告)日:1981-11-24

    申请号:US64872

    申请日:1979-08-08

    申请人: Kenzo Mori Hyo Yasuda

    发明人: Kenzo Mori Hyo Yasuda

    IPC分类号: G01S3/14 G01S5/04

    CPC分类号: G01S3/143

    摘要: A radio direction finder, designed to determine the direction of arrival of radio waves utilizing a nondirectional antenna and a plurality of directional antennas having respective directivities, comprises an oscillator for producing A.C. signals having a phase angle in correspondence to the configuration of each of the directional antennas, modulators for modulating the respective outputs of the directional antennas with respective A.C. signals, a additive circuit for superimposing the respective modulation outputs on the phase-shifted output of the nondirectional antenna, and a receiving circuit for demodulating the added output of the additive circuit to recover the A.C. signals. The radio direction finder is further characterized by an automatic phase tracking counter for following the phase of the output of the receiving circuit, and a display unit for displaying the bearing of the received radio wave numerically. Special circuitry is provided for achieving accelerated automatic phase tracking, for stopping the automatic phase tracking procedure upon the occurrence of certain disturbances, and for restarting the procedure upon disappearance of the disturbances.

    摘要翻译: 无线电测向仪,用于确定利用非定向天线和具有各自方向性的多个定向天线的无线电波的到达方向,包括一个振荡器,用于产生具有相应于每个方向的配置的相位角的交流信号 天线,用于用相应AC信号调制定向天线的相应输出的调制器,用于将各个调制输出叠加在非方位天线的相移输出上的加法电路,以及用于解调加法电路的相加输出的接收电路 恢复交流信号。 无线电测向仪的特征还在于用于跟踪接收电路的输出相位的自动相位跟踪计数器,以及用于以数字方式显示所接收的无线电波的方位的显示单元。 提供特殊电路用于实现加速的自动相位跟踪,用于在发生某些扰动时停止自动相位跟踪程序,以及在干扰消失时重新启动程序。

    Fan-beam antenna
    7.
    发明授权
    Fan-beam antenna 失效
    风扇束天线

    公开(公告)号:US07075496B2

    公开(公告)日:2006-07-11

    申请号:US10939341

    申请日:2004-09-14

    IPC分类号: H01Q19/06 H01Q13/00

    CPC分类号: H01Q1/42 H01Q13/02 H01Q19/08

    摘要: An object of the invention is to provide a fan-beam antenna which comprises a flare which is long in a horizontal direction thereof and whose cross section is horn-shaped, and a water-proof box housing components of said antenna, in which a vertical beam width is made narrow without spreading a vertical size to increase gain. Accordingly, this invention is characterized in that a radome radiation surface is constituted of a plurality of dielectric plates equivalently, and at least one of the dielectric plates is made a dielectric lens having a characteristic similar to a convex lens.

    摘要翻译: 本发明的目的是提供一种风扇束天线,其包括在其水平方向上长并且其横截面为喇叭形的火炬,以及容纳所述天线的部件的防水箱,其中垂直 光束宽度窄而不扩大垂直尺寸以增加增益。 因此,本发明的特征在于,天线罩辐射面由等效的多个电介质板构成,并且至少一个电介质板被制成具有类似于凸透镜的特性的介电透镜。

    Plate antenna for direction finder
    8.
    发明授权
    Plate antenna for direction finder 失效
    测向平板天线

    公开(公告)号:US4510498A

    公开(公告)日:1985-04-09

    申请号:US475358

    申请日:1983-03-14

    CPC分类号: H01Q3/247

    摘要: In an antenna device for a direction finder including an electrically conductive antenna plate of a configuration symmetrical around its center and disposed in parallel with a base plate with a predetermined distance maintained therebetween, a plurality of pairs of connecting portions are provided around the antenna plate so that one in each pair is provided opposite to the other with respect to the center. An electronic switch provided in the device transfers the connection in order that one in a pair thus transferred is grounded through a resistor having the characteristic impedance of the antenna plate while the other in the pair is connected to the receiver of the direction finder through a cable having the characteristic impedance.

    摘要翻译: 在用于取向器的天线装置中,包括导电天线板,其结构以其中心为中心对称并且与基板平行设置,其间保持预定距离,在天线板周围设置多对连接部分, 每对中的一个相对于中心设置成与另一对相对。 设置在设备中的电子开关传输连接,使得一对如此传送的电子开关通过具有天线板的特征阻抗的电阻器接地,而另一个电阻器通过电缆连接到取向器的接收器 具有特征阻抗。

    Bearing measuring system for frequency modulation
    9.
    发明授权
    Bearing measuring system for frequency modulation 失效
    用于调频的轴承测量系统

    公开(公告)号:US4306240A

    公开(公告)日:1981-12-15

    申请号:US062778

    申请日:1979-08-01

    CPC分类号: G01S3/12 G01S3/42

    摘要: A bearing measuring system for determining the direction of arrival of a wave by rotating directional antennas or a goniometer to which the directional antennas are connected or rotating the directivity of such directional antennas or goniometer by electric means. The receiver of bearing measuring system of the type disclosed is usually constructed to determine the bearing of an amplitude modulated wave while confirming information about arriving waves. With a single receiver for frequency modulated waves it has been difficult to determine the bearing from adding the outputs of the directional antennas and the output of a nondirectional antenna while confirming information about arriving waves. With the system according to the present invention, it is possible with a single receiver to determine the bearing of the aforementioned frequency modulated waves while confirming information about the waves.

    摘要翻译: 一种轴承测量系统,用于通过旋转定向天线或定向天线连接的测角仪或通过电气方式旋转这种定向天线或测角器的方向性来确定波的到达方向。 所公开的类型的轴承测量系统的接收机通常被构造成确定幅度调制波的方位,同时确定关于到达波的信息。 对于频率调制波的单个接收机,在确认关于到达波的信息的同时,难以确定方向性天线的输出和非定向天线的输出的方位。 利用根据本发明的系统,单个接收机可以在确认关于波的信息的同时确定上述频率调制波的方位。