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公开(公告)号：US5349531A
公开(公告)日：1994-09-20
申请号：US848388
申请日：1992-03-09
CPC分类号： G01S19/54
摘要： A navigation apparatus utilizing a global positioning system having at least first and second satellite reception antennas installed on a navigation vehicle with a predetermined distance therebetween, a first azimuth computing unit for computing a first azimuth angle of the navigation vehicle from satellite radio waves received at the first and second antennas and a phase difference therebetween, a second azimuth computing unit for computing a second azimuth angle from a time change of antenna positions calculated from the satellite radio wave received at the first or second reception antenna, first and second multiplying units for multiplying outputs of the first and second azimuth computing units with predetermined coefficients respectively, an adding unit for adding outputs of the first and second multiplying units to produce a third azimuth angle, and a coefficient control unit for varying coefficient values of the first and second multiplying units in accordance with either the satellite arrangement or turning frequency of the navigation vehicle.
摘要翻译： 一种利用全球定位系统的导航装置，其具有至少安装在导航车辆上的第一和第二卫星接收天线，其间具有预定的距离;第一方位计算单元，用于根据在所述导航车载机上接收的卫星无线电波计算导航车辆的第一方位角; 第一和第二天线和它们之间的相位差，第二方位计算单元，用于根据从在第一或第二接收天线处接收的卫星无线电波计算出的天线位置的时间变化来计算第二方位角;第一和第二乘法单元，用于乘法 第一和第二方位计算单元的输出分别具有预定系数;加法单元，用于将第一和第二乘法单元的输出相加以产生第三方位角;以及系数控制单元，用于改变第一和第二乘法单元的系数值 按照sa 卫星排列或导航车辆的转弯频率。
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公开(公告)号：US5065162A
公开(公告)日：1991-11-12
申请号：US533837
申请日：1990-06-06
申请人： Noriyuki Akaba , Hiroshi Yagi , Yoji Miyoshi
发明人： Noriyuki Akaba , Hiroshi Yagi , Yoji Miyoshi
CPC分类号： H04B7/18506 , G01S3/32 , G01S5/0009 , H01Q1/125 , H01Q1/28 , H01Q3/08
摘要： The present invention pertains to a radiowave relay station in which image information or the like is transmitted by a helicopter from a first station to a second station. A direction finding device is provided which detects the direction of a transmitting source, i.e., a first station. The direction finding device calculates the vertical directional angle .phi. representing the direction of an incoming radiowave which is transmitted from the first station. This direction finding device allows the helicopter performing a relay function to fly rapidly to a contact point with the first station, i.e., in a vicinity of the first station. The direction finding device may also provide information to control an antenna driving portion for adjusting a receiving antenna located on the helicopter.
摘要翻译： 本发明涉及一种无线电波中继站，其中图像信息等由直升机从第一站发送到第二站。 提供了一种检测发射源（即，第一站）的方向的测向装置。 方向发现装置计算表示从第一台发送的输入无线电波的方向的垂直方向角度phi。 该方向发现装置允许执行中继功能的直升机快速飞行到与第一站的接触点，即在第一站附近。 方向发现装置还可以提供信息以控制用于调整位于直升机上的接收天线的天线驱动部分。
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公开(公告)号：US5465099A
公开(公告)日：1995-11-07
申请号：US296859
申请日：1994-08-26
IPC分类号： B65G47/49 , G01S13/75 , G01S13/76 , G01S13/79 , G06Q50/00 , G06Q50/16 , G06Q50/26 , H04B7/26 , H04W4/04 , H01Q1/00
CPC分类号： G01S13/753
摘要： A detectable device attachable to a movable item for detecting movement. Radio waves having a predetermined frequency are received by the detectable device, and radio waves having a harmonic frequency of the received waves are reradiated from the detectable device. The detectable device comprises a dipole antenna for receiving radio waves with said predetermined frequency, a diode connected in parallel to feed points of the dipole antenna for generating an electric current having a harmonic frequency of said received radio waves. A loop antenna is provided whose feed points are connected in parallel to feed points of the diode for converting the electric current having the harmonic frequency to radio waves for transmitting the radio waves at the harmonic frequency.
摘要翻译： 可检测的装置，其可移动物件附接到用于检测运动。 具有预定频率的无线电波由可检测装置接收，并且具有接收波的谐波频率的无线电波从可检测装置重新辐射。 可检测装置包括用于接收具有所述预定频率的无线电波的偶极子天线，与偶极子天线的馈电点并联连接的二极管，用于产生具有所接收的无线电波的谐波频率的电流。 提供了一种环形天线，其馈电点并联连接到二极管的馈电点，用于将具有谐波频率的电流转换成用于发射谐波频率的无线电波的无线电波。
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4.发明授权
公开(公告)号：US5334984A
公开(公告)日：1994-08-02
申请号：US920513
申请日：1992-07-28
申请人： Noriyuki Akaba
发明人： Noriyuki Akaba
摘要： A direction finding method and system for locating the direction of a transmission source based on an electromagnetic wave which is transmitted from the transmission source and is received by an antenna means at a receiving end apparatus. The transmission source transmits an angle-modulated wave. Meanwhile, the receiving end apparatus receives the transmitted wave, converts into electrical signals a beat frequency signal which is caused by direct and reflected waves contained in the received wave, and time-averaging the electrical signals, thus minimizing a angle error due to a multipass interference.
摘要翻译： 一种用于基于从发送源发送并由天线装置在接收端装置接收的电磁波来定位发送源的方向的方向和方法。 发送源发送角度调制波。 同时，接收端装置接收发射波，将包含在接收波中的直接波和反射波引起的拍频信号转换为电信号，并且对电信号进行时间平均，从而最小化由于多径的角度误差 干扰。
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公开(公告)号：US5027130A
公开(公告)日：1991-06-25
申请号：US514245
申请日：1990-04-25
申请人： Noriyuki Akaba , Satoshi Itoh
发明人： Noriyuki Akaba , Satoshi Itoh
IPC分类号： H01Q1/42
CPC分类号： H01Q1/421
摘要： A radome includes a radome member formed of a dielectric to protect an antenna element from outside space and a structural member formed of metal for supporting the antenna element at the center thereof and to which the radome member is joined at the periphery of the antenna element to support the radome member. When the radome member is formed of dielectric and the structural member is formed of metal, the junction therebetween serves as a kind of antenna and the radiation characteristic of the ordinary antenna element is disturbed. To solve this problem, a portion of the radome member through which an electric wave is transmitted is formed of material through which an electromagnetic wave having a frequency identical with that of the electric wave is transmitted and a junction formed between the radome member and the structural member has a structure for absorbing the electric wave.
摘要翻译： 天线罩包括由绝缘体形成的天线罩构件，用于保护天线元件免受外部空间的影响，以及由金属形成的结构构件，用于在其中心处支撑天线元件，天线罩构件在天线元件的周围连接到天线罩构件上 支持天线罩成员。 当天线罩构件由电介质构成并且结构构件由金属形成时，它们之间的接合部分用作天线的种类，并且普通天线元件的辐射特性受到干扰。 为了解决这个问题，发射电波的天线罩构件的一部分由与电波频率相同的电磁波传播的材料形成，并且在天线罩构件和结构体之间形成接合点 构件具有用于吸收电波的结构。
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公开(公告)号：US4829312A
公开(公告)日：1989-05-09
申请号：US8148
申请日：1987-01-22
CPC分类号： H01Q1/40 , H01Q13/0233
摘要： The present invention is applied to a slotted waveguide antenna assembly which comprises a slotted waveguide having a plurality of slots, a reflector having an aperture in front of the slotted waveguide and reflecting radiated electromagnetic wave for forming directive beam, and a mounting portion for mounting the antenna assembly onto a place where the antenna assembly is to be installed.In such an antenna assembly, a fixing member is provided on the reflector at a position spaced from the slotted waveguide. The fixing member extends between the opposite walls of the reflector and fixed thereto. The fixing member has an end which projects outwardly from the wall of the reflector to form the mounting portion. The fixing member is sufficiently thin as compared with the working wavelength.The slotted waveguide antenna assembly may have a dielectric wave-guiding arrangement.
摘要翻译： 本发明应用于开槽波导天线组件，其包括具有多个槽的开槽波导，反射器在开槽波导的前面具有孔，并且反射用于形成指向光束的辐射电磁波，以及安装部分 天线组件放置在要安装天线组件的地方。 在这种天线组件中，在与槽形波导间隔开的位置处，在反射器上设置固定构件。 固定构件在反射器的相对壁之间延伸并固定在其上。 固定构件具有从反射器的壁向外突出的端部，以形成安装部分。 与工作波长相比，固定部件足够薄。 开槽波导天线组件可以具有介质波导装置。
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公开(公告)号：US4868520A
公开(公告)日：1989-09-19
申请号：US133660
申请日：1987-12-16
IPC分类号： H03F3/60
CPC分类号： H03F3/602
摘要： A high-frequency power synthesizing apparatus having a plurality of distributors arranged in a plurality of stages, a plurality of amplifiers which are supplied with outputs from a final stage of said power distributors and which amplify these outputs to a predetermined level, and a power synthesizing unit including initial-stage power synthesizers supplied with outputs from said amplifiers and a final-stage synthesizer which outputs power to an external load. The final-stage power distributors and the initial stage synthesizers are constituted by 0.degree.-hybrid modules. The output level of each amplifier is regulated and made constant by being compared with a predetermined level. The output levels of the amplifiers can be displayed on an external display.
摘要翻译： 一种高频功率合成装置，具有以多级布置的多个分配器，多个放大器，从所述功率分配器的最后级提供输出，并将这些输出放大到预定电平;以及功率合成 包括提供有来自所述放大器的输出的初级功率合成器的单元和向外部负载输出功率的最后级合成器。 最后阶段功率分配器和初级合成器由0°混合模块构成。 每个放大器的输出电平通过与预定电平进行比较来调节并保持恒定。 放大器的输出电平可以显示在外部显示器上。
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公开(公告)号：US4488157A
公开(公告)日：1984-12-11
申请号：US350739
申请日：1982-02-22
申请人： Takashige Terakawa , Noriyuki Akaba
发明人： Takashige Terakawa , Noriyuki Akaba
CPC分类号： H01Q13/0233 , H01Q19/06
摘要： Described is an antenna structure which reduces the side lobe level of a slot array antenna of the type using a dielectric plate as a director mechanism. A slot radiator is mounted on the vertical side of a member composed of metal plates and having a C-shaped side sectional shape, and a pair of parallel dielectric plates are projected to extend in the direction of the open end of the C-shaped member. Also, a pair of metal pent roof plates are provided to spread upwardly and downwardly from the open end edges of the C-shaped member on the outer side of the dielectric plates. The metal pent roof plates serve as reflecting plates for the radiation power from the slot radiator and thus the side lobe level is reduced to a practical low level.
摘要翻译： 描述了一种天线结构，其使用电介质板作为导向机构来减小类型的槽阵列天线的旁瓣电平。 槽式散热器安装在由金属板构成的构件的垂直侧上并且具有C形侧截面形状，并且一对平行的电介质板突出地沿着C形构件的开口端的方向延伸 。 另外，设置一对金属顶盖板，以从电介质板的外侧上的C形构件的开口端边缘向上和向下扩展。 金属顶盖板用作来自狭槽散热器的辐射功率的反射板，因此旁瓣水平降低到实用的低水平。
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公开(公告)号：US4901042A
公开(公告)日：1990-02-13
申请号：US169424
申请日：1988-03-17
摘要： A high-frequency power divider having an input line, a pair of input-output lines, and a pair of high-impedance transmission lines diverging from the input line and interconnecting the first and second input-output lines. An isolation resistor is interposed between and connected to a pair of portions of the high-impedance transmission lines proximate the input-output lines. A capacitive component, corresponding to the capacitive component of the resistor, is provided at a diverging point at which the high-impedance transmission lines diverge from the first input-output line. The second capacitive component is defined by a capacitor or electrode surface.
摘要翻译： 一种高频功率分配器，具有输入线，一对输入输出线和一对从输入线发散并互连第一和第二输入 - 输出线的高阻抗传输线。 隔离电阻器插入并连接到靠近输入 - 输出线路的高阻抗传输线路的一对部分。 在高阻抗传输线从第一输入 - 输出线发散的发散点处提供对应于电阻器的电容分量的电容分量。 第二电容部件由电容器或电极表面限定。
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公开(公告)号：US4857869A
公开(公告)日：1989-08-15
申请号：US169423
申请日：1988-03-17
摘要： This invention relates to a push-pull transformer for use in a high frequency push-pull amplifier. This push-pull transformer has a coaxial line whose one end is connected to an input terminal, while the other end thereof is provided with an internal conductor and an outer conductor, the internal and outer conductors being grounded through stubs. A capacitor having a proper capacity is connected between the internal conductor and the outer conductor whereby the push-pull transformer can be properly actuated in a low frequency range other than the frequency used without any necessity to enlarge the size of the stubs.
摘要翻译： 本发明涉及一种用于高频推挽放大器的推挽式变压器。 该推挽式变压器具有同轴线，其一端连接到输入端，而另一端设置有内部导体和外部导体，内部和外部导体通过短截线接地。 具有适当容量的电容器连接在内部导体和外部导体之间，由此推挽变压器可以在所使用频率以外的低频范围内正确地起动，而不需要扩大插座的尺寸。
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