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公开(公告)号：US4500882A
公开(公告)日：1985-02-19
申请号：US317847
申请日：1981-11-03
申请人： Takashi Katagi , Seiji Mano
发明人： Takashi Katagi , Seiji Mano
CPC分类号： H01Q19/027 , H01Q3/2658
摘要： An antenna system includes a reflector and a primary and a subsidiary array antenna which are disposed in front of an aperture of the reflector so as to be positioned back-to-back with each other. An electric power which is supplied to the primary array antenna is also partly supplied to the subsidiary array antenna after it has been controlled in both phase and amplitude in order that a radiant beam from the subsidiary array antenna compensates for that portion of a secondary radiant beam from the reflector which is blocked by the primary array antenna. For example, a transmission source is connected to the primary array antenna through a coupler and a distributor while the coupler is connected to the subsidiary array antenna through a phase and an amplitude regulator and a distributor. The source may also be connected via the distributor to the primary array antenna formed of a plurality of radiating elements which are respectively connected to corresponding radiating elements of the subsidiary array antenna through couplers and delay lines or feeder lines.
摘要翻译： 天线系统包括反射器和主阵列天线和辅助阵列天线，其布置在反射器的孔的前面，以便彼此背对背地定位。 在辅助阵列天线被控制在相位和振幅之后，提供给主阵列天线的电力也被部分地提供给辅助阵列天线，以便来自辅助阵列天线的辐射束补偿第二辐射束的那部分 从被主阵列天线阻挡的反射器。 例如，通过耦合器和分配器将发送源连接到主阵列天线，而耦合器通过相位和幅度调节器和分配器连接到辅助阵列天线。 源极还可以经由分配器连接到由多个辐射元件形成的主阵列天线，所述主阵列天线通过耦合器和延迟线或馈线分别连接到辅助阵列天线的相应辐射元件。
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公开(公告)号：US4644359A
公开(公告)日：1987-02-17
申请号：US556919
申请日：1983-12-01
申请人： Takashi Katagi , Seiji Mano , Isamu Chiba
发明人： Takashi Katagi , Seiji Mano , Isamu Chiba
CPC分类号： H01Q3/2629
摘要： Disclosed is an antenna system having a first antenna directed to receive a desired signal wave and a second antenna directed to receive only an interference signal wave superposed on the desired signal wave. Both signals received by the first and second antennas are combined and the amplitude and phase shift necessary for the second antenna signal to cancel the interference signal component existing in the first antenna signal is calculated from the combined signal. By combining the controlled second antenna signal with the first antenna signal, the desired reception signal having an improved S/N ratio can be obtained.
摘要翻译： 公开了一种天线系统，其具有用于接收所需信号波的第一天线和仅接收叠加在期望信号波上的干扰信号波的第二天线。 由第一和第二天线接收的两个信号被组合，并且根据组合的信号计算第二天线信号消除存在于第一天线信号中的干扰信号分量所需的振幅和相移。 通过将受控的第二天线信号与第一天线信号组合，可以获得具有改善的S / N比的期望的接收信号。
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公开(公告)号：US5717410A
公开(公告)日：1998-02-10
申请号：US340153
申请日：1994-11-15
CPC分类号： H01Q21/205 , H01Q13/10 , H01Q13/12
摘要： There is provided a small-sized and simplified horizontally polarized antenna apparatus which forms an omnidirectional pattern in the horizontal plane. The radiation field in the horizontal plane becomes continuous and a horizontally polarized omnidirectional radiation pattern can be obtained in the horizontal plane by forming radiation slots at opposing positions on a grounded hollow body and exciting the slots out of phase.
摘要翻译： 提供了一种在水平面上形成全向图案的小尺寸和简化的水平极化天线装置。 在水平面上的辐射场变得连续，并且通过在接地空心体上的相对位置处形成辐射狭缝并在相位上激发槽，可以在水平面上获得水平极化的全向辐射图。
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公开(公告)号：US06426730B1
公开(公告)日：2002-07-30
申请号：US09926081
申请日：2001-08-27
IPC分类号： H01Q136
CPC分类号： H01Q5/00 , H01Q5/42 , H01Q9/16 , H01Q9/26 , H01Q9/36 , H01Q21/061 , H01Q21/062 , H01Q21/28
摘要： An array antenna includes systematically arranged linear antennas belonging to two or more groups consisting of linear antennas operating at respective frequencies, so that the array antenna can operate at two or more operating frequencies. Each linear antenna that operates at a relatively low frequency includes antenna elements having cranks formed thereon.
摘要翻译： 阵列天线包括属于两个或更多组的系统地布置的线性天线，其由在相应频率下工作的线性天线组成，使得阵列天线可以在两个或更多个工作频率下操作。 以相对较低频率操作的每个线性天线包括其上形成有曲柄的天线元件。
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公开(公告)号：US5374934A
公开(公告)日：1994-12-20
申请号：US848325
申请日：1992-03-09
CPC分类号： G01B15/04
摘要： A positioner supports an antenna at an optional rotating angle and the mirror surface of the antenna at different rotating angles is measured. A computer expands the measured value into series using polar coordinates system associated with the measuring system, whereby the intrinsic deformation of the mirror surface under the zero-gravity condition and the deformation due to gravity are separately measured.
摘要翻译： 定位器以可选的旋转角度支撑天线，并测量天线的不同旋转角度的镜面。 计算机使用与测量系统相关联的极坐标系统将测量值扩展成串联，由此分别测量零重力条件下的镜面在零重力条件下的固有变形和由重力引起的变形。
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6.发明授权Method of measuring the null angle of a monopulse antenna and apparatus therefor 失效测量单极天线及其装置的空角的方法
公开(公告)号：US5181040A
公开(公告)日：1993-01-19
申请号：US601264
申请日：1990-10-22
申请人： Masato Inoue , Minoru Tajima , Nobutake Orime , Takashi Katagi
发明人： Masato Inoue , Minoru Tajima , Nobutake Orime , Takashi Katagi
IPC分类号： G01R29/10
CPC分类号： G01R29/10
摘要： A method of and an apparatus for measuring the null angle in the difference vs. sum pattern and in the difference pattern of a monopulse antenna. The null angle of the monopulse antenna in the radiation pattern is acquired by transmitting an RF signal from a plurality of antenna elements to the monopulse antenna, acquiring the sum signal and difference signals in the directions of the respective antenna elements and acquiring the null angle in accordance with the sum and difference signals. The apparatus comprises a rotator for changing the direction of the monopulse antenna and a transmitting antenna facing the monopulse antenna for transmitting a test signal to the monopulse antenna.
摘要翻译： 用于测量差分 - 和图案和单脉冲天线的差分图案中的零角度的方法和装置。 通过从多个天线元件向单脉冲天线发送RF信号，获取辐射图中的单脉冲天线的零角度，获取各个天线元件的方向上的和信号和差分信号，并获取零角度 按照和差分信号。 该装置包括用于改变单脉冲天线的方向的旋转器和面向单脉冲天线的发送天线，用于将测试信号发送到单脉冲天线。
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公开(公告)号：US4827270A
公开(公告)日：1989-05-02
申请号：US130646
申请日：1987-12-09
摘要： Antenna device for detecting a direction of an object lying in a low angle direction, which is constructed with a plurality of antenna elements, feeds, and so forth, and comprises a central feed for feeding RF signals to one or a plurality of central antenna elements, and a peripheral feed for feeding RF signals to a plurality of peripheral antenna elements, and that one of input terminals of the central feed and one of input terminals of the peripheral feed are connected together by a hybrid circuit.
摘要翻译： 用于检测由多个天线元件构成的低角度方向的物体的方向的天线装置，馈电等，并且包括用于将RF信号馈送到一个或多个中央天线元件的中央馈送 以及用于将RF信号馈送到多个外围天线元件的外围馈电，并且通过混合电路将中央馈电的输入端和外围馈电的输入端中的一个连接在一起。
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公开(公告)号：US5784034A
公开(公告)日：1998-07-21
申请号：US789685
申请日：1997-01-27
申请人： Yoshihiko Konishi , Masataka Ohtsuka , Yoshiyuki Chatani , Makoto Matsunaga , Shuji Urasaki , Takashi Katagi
发明人： Yoshihiko Konishi , Masataka Ohtsuka , Yoshiyuki Chatani , Makoto Matsunaga , Shuji Urasaki , Takashi Katagi
IPC分类号： H01Q21/08 , H01Q1/32 , H01Q1/36 , H01Q9/30 , H01Q9/32 , H01Q9/42 , H01Q11/08 , H01Q13/08 , H01Q21/00 , H01Q21/24 , H01Q21/29
摘要： Herein is revealed a helical antenna apparatus wherein the direction of beam radiation hardly changes even if the frequency in use changes. Two helical antennas which are wound with two conductive wires spirally, respectively, at equal intervals with a specified pitch .alpha. in the form of a cylinder are disposed along the length of the helical antennas so that the axes thereof substantially coincide with each other. By determining the lengths of the feeders of the respective helical antennas appropriately in order to set the phase of supplied power, it is possible to form the beam of signals radiated into space in the shape of conical beam having a directivity oriented obliquely upward. Additionally, it is possible to obtain the conical beam in which the direction of beam radiation does not change even if the frequency in use is changed.
摘要翻译： 这里揭示了一种螺旋天线装置，其中即使所使用的频率发生变化，射束辐射的方向也几乎不变化。 沿着螺旋天线的长度，以螺旋形的方式螺旋地缠绕有两个螺旋天线的两个螺旋天线分别以等间隔以特定的圆柱形形式的间距α设置，使得其轴线基本上彼此重合。 通过适当地确定各个螺旋天线的馈线的长度以设定所提供的功率的相位，可以形成辐射到具有倾斜向上定向的锥形束形状的空间中的信号光束。 此外，即使改变使用频率，也可以获得束辐射方向不变化的锥形束。
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公开(公告)号：US5430451A
公开(公告)日：1995-07-04
申请号：US117240
申请日：1993-09-07
CPC分类号： B64G1/22 , H01Q1/08 , H01Q1/288 , H01Q21/061 , Y10S343/02
摘要： An array antenna mounted on a spacecraft in its stowed state. After the spacecraft is launched in a predetermined position or on a predetermined orbit, the array antenna is extended to a flat plate form or a curved surface form. The array antenna has a structure that a plurality of subarrays are connected by plate springs or the like. The array antenna is extended in a kite form by using cables for connecting a spacecraft body and the subarrays or is extended by using an extension pole mounted on the spacecraft body. Each subarray includes a variable phase shifter to switch a shape and a direction of a directivity beam. A feeder line, a power supply line, a control signal line and the like connect the spacecraft body and each subarray.
摘要翻译： 安装在航天器处于收起状态的阵列天线。 在航天器在预定位置或预定轨道上发射之后，阵列天线被延伸到平板形式或曲面形式。 阵列天线具有多个子阵列通过板簧等连接的结构。 阵列天线通过使用用于连接航天器主体和子阵列的电缆以风筝形式延伸，或者通过使用安装在航天器主体上的延伸杆来延伸。 每个子阵列包括用于切换形状和方向性束的方向的可变移相器。 馈线，电源线，控制信号线等连接航天器本体和每个子阵列。
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公开(公告)号：US5257030A
公开(公告)日：1993-10-26
申请号：US27926
申请日：1993-03-05
申请人： Toshihiko Aoki , Takashi Katagi , Nobutake Orime , Susumu Hishinuma , Koushi Ogiso , Yasuhiko Nishioka
发明人： Toshihiko Aoki , Takashi Katagi , Nobutake Orime , Susumu Hishinuma , Koushi Ogiso , Yasuhiko Nishioka
CPC分类号： H01Q3/2647
摘要： An antenna system for transmitting radio waves in the same direction as the direction of arrival of incoming radio waves. The arrival direction is detected by a fast Fourier transform processor. The transmitting direction is adjusted by phase-shifting radio waves from a feeder on the basis of the detected arrival direction. Further, signals in the system are transmitted through optical fibers in order to decrease the processing time.
摘要翻译： 一种天线系统，用于以与进入的无线电波的到达方向相同的方向发射无线电波。 到达方向由快速傅里叶变换处理器检测。 基于检测到的到达方向，通过从馈线相移无线电波来调整发送方向。 此外，系统中的信号通过光纤传输，以减少处理时间。
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