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13 条记录 (耗时 0.021 秒)

    Antenna device
    1.
    发明授权
    Antenna device 有权
    天线设备

    公开(公告)号：US06707433B2

    公开(公告)日：2004-03-16

    申请号：US10258484

    申请日：2002-10-25

    申请人： Masataka Ohtsuka ,  Isamu Chiba ,  Shuji Urasaki

    发明人： Masataka Ohtsuka ,  Isamu Chiba ,  Shuji Urasaki

    IPC分类号： H01Q2100

    CPC分类号： H01Q3/26 ,  H01Q21/061 ,  H01Q21/20 ,  H01Q21/22

    摘要： A plurality of concentric circle array antennas each having a different radius are disposed on an identical plane, and a plurality of element antennas are arranged circumferentially in each of the concentric circle array antennas. The plurality of concentric circle array antennas are arranged at regular intervals d in most part thereof, and the concentric circle array antennas corresponding to a remaining part of the plurality of concentric circle array antennas are arranged at intervals d±0.4 to 0.6d. The radii of the part of plural concentric circles change by ±(0.4 to 0.6)d, so that it is possible to reduce a wide-angle side lobe.

    摘要翻译： 每个具有不同半径的多个同心圆阵列天线设置在同一平面上，并且多个元件天线在每个同心圆阵列天线中周向布置。 多个同心圆阵列天线在其大部分以规则的间隔d布置，并且与多个同心圆阵列天线的剩余部分相对应的同心圆阵列天线以间隔d±0.4至0.6d排列。 多个同心圆的一部分的半径变化±（0.4〜0.6）d，使得可以减小广角旁瓣。

    Composite antenna apparatus
    2.
    发明授权
    Composite antenna apparatus 失效
    复合天线装置

    公开(公告)号：US06222505B1

    公开(公告)日：2001-04-24

    申请号：US09308333

    申请日：1999-05-19

    申请人： Tsutomu Endo ,  Isamu Chiba ,  Masataka Ohtsuka ,  Yoshihiko Konishi ,  Shuji Urasaki

    发明人： Tsutomu Endo ,  Isamu Chiba ,  Masataka Ohtsuka ,  Yoshihiko Konishi ,  Shuji Urasaki

    IPC分类号： H01Q136

    CPC分类号： H01Q21/30 ,  H01Q1/242 ,  H01Q1/243 ,  H01Q1/244 ,  H01Q5/35 ,  H01Q5/50 ,  H01Q9/30 ,  H01Q11/08 ,  H01Q21/29

    摘要： A composite antenna apparatus comprising a balun connected to an inner conductor at the upper end of a coaxial line 11, one end of a helical element formed by a pair of wire conductors is connected to the balun, the other end is wound symmetrically around the coaxial line using the the coaxial line as a center so as to face the balun and is connected to the outer conductor 13 at the lower end of the coaxial line. The provision of an outer conductor connecting terminal connected to the outer conductor and an inner conductor connecting terminal connected to the inner conductor at the lower end of the coaxial line, allows the formation, on the same axis, of a helical antenna fed by the coaxial line via the helical element and a monopole antenna formed by the outer conductor of the coaxial line. Thereby equivalent gain in the horizontal plane and a reduction in the occupied volume is achieved.

    摘要翻译： 一种复合天线装置，包括连接到同轴线路11的上端的内导体的平衡 - 不平衡转换器，由一对线导体形成的螺旋形元件的一端连接到平衡 - 不平衡变换器，另一端围绕同轴线对称地卷绕 使用同轴线作为中心，以面对平衡 - 不平衡变换器，并连接到同轴线下端的外导体13。 设置连接到外导体的外导体连接端子和连接到同轴线下端的内导体的内导体连接端子允许在相同轴线上形成由同轴线馈送的螺旋天线 经由螺旋元件的线和由同轴线的外导体形成的单极天线。 因此，实现了水平面中的等效增益和占用体积的减小。

    Antenna apparatus
    3.
    发明授权
    Antenna apparatus 失效
    天线装置

    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

    CPC分类号： H01Q1/362 ,  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。

    Antenna
    4.
    发明授权
    Antenna 有权

    公开(公告)号：US06768475B2

    公开(公告)日：2004-07-27

    申请号：US10250520

    申请日：2003-07-03

    申请人： Masataka Ohtsuka ,  Isamu Chiba

    发明人： Masataka Ohtsuka ,  Isamu Chiba

    IPC分类号： H01Q2100

    CPC分类号： H01Q3/242 ,  H01Q3/26 ,  H01Q21/061 ,  H01Q21/062 ,  H01Q21/20

    摘要： An antenna apparatus arranged in accordance with the invention has a plurality of element antennas 1 arranged on a plurality of concentric circles 2 assumed to exist on a plane and differs in radius from each other, and forms a beam in a direction inclined by &thgr;0 at the maximum from a direction perpendicular to the plane. If the radius of the n-th concentric circle 2 from the inner side is an; the number of element antennas 1 arranged on the n-th concentric circle 2 from the inner side is Mn, and the number of waves is k, the number Mn of element antennas 1 arranged on each concentric circle 2 is determined so as to satisfy the following equation: Mn+0.8·Mn1/3>k·an·(1+sin &thgr;0) Also, the element antennas 1 are arranged on each concentric circle 2 by being generally equally spaced apart from each other in the circumferential direction of the concentric circle.

    Radio Tag Communication System
    5.
    发明申请
    Radio Tag Communication System 失效
    无线标签通信系统

    公开(公告)号：US20070273526A1

    公开(公告)日：2007-11-29

    申请号：US10592131

    申请日：2004-07-23

    申请人： Toru Fukasawa ,  Masataka Ohtsuka

    发明人： Toru Fukasawa ,  Masataka Ohtsuka

    IPC分类号： H04B5/02

    CPC分类号： G06K7/0008 ,  G06K7/10316 ,  G06K7/10356 ,  G06K7/10435 ,  H04B7/10

    摘要： A radio tag communication system, when a plurality of RW apparatuses are arranged in such a manner that communication areas of adjacent RW apparatuses overlap one another, makes the polarized waves of the adjacent RW apparatuses orthogonal to each other, and causes the tag to switch the polarization direction with the movement of the tag. This makes it possible to prevent signal interference even when the communication areas are expanded.

    摘要翻译： 一种无线电标签通信系统，当以相邻RW装置的通信区域彼此重叠的方式布置多个RW装置时，使相邻RW装置的极化波彼此正交，并使标签切换 偏振方向随着标签的移动。 这使得即使当通信区域被扩展时也可以防止信号干扰。

    Radio tag communication system
    6.
    发明授权
    Radio tag communication system 失效
    无线电标签通信系统

    公开(公告)号：US07495557B2

    公开(公告)日：2009-02-24

    申请号：US10592131

    申请日：2004-07-23

    申请人： Toru Fukasawa ,  Masataka Ohtsuka

    发明人： Toru Fukasawa ,  Masataka Ohtsuka

    IPC分类号： G08B13/20

    CPC分类号： G06K7/0008 ,  G06K7/10316 ,  G06K7/10356 ,  G06K7/10435 ,  H04B7/10

    摘要： A radio tag communication system, when a plurality of RW apparatuses are arranged in such a manner that communication areas of adjacent RW apparatuses overlap one another, makes the polarized waves of the adjacent RW apparatuses orthogonal to each other, and causes the tag to switch the polarization direction with the movement of the tag. This makes it possible to prevent signal interference even when the communication areas are expanded.

    摘要翻译： 一种无线电标签通信系统，当以相邻RW装置的通信区域彼此重叠的方式布置多个RW装置时，使相邻RW装置的极化波彼此正交，并使标签切换 偏振方向随着标签的移动。 这使得即使当通信区域被扩展时也可以防止信号干扰。

    Antenna apparatus
    7.
    发明授权
    Antenna apparatus 有权
    天线装置

    公开(公告)号：US07898488B2

    公开(公告)日：2011-03-01

    申请号：US11970636

    申请日：2008-01-08

    申请人： Nobuyasu Takemura ,  Masataka Ohtsuka

    发明人： Nobuyasu Takemura ,  Masataka Ohtsuka

    IPC分类号： H01Q11/12

    CPC分类号： H01Q7/00 ,  H01Q1/2208 ,  H01Q9/42

    摘要： A ground conductor constituting a bottom board and a loop antenna formed of a strip conductor formed separately from and around the ground conductor are provided on one face of a dielectric substrate, and a transmitter-receiver is connected to one end of the loop antenna serving as the power dispatching unit via a first matching circuit, and a second matching circuit is connected to the other end. A conductor formed of the strip conductor is provided on the dielectric substrate on the other face of the dielectric substrate so as to oppose the loop antenna with the intermediary of the dielectric substrate. A third matching circuit is connected to one end of the conductor and a fourth matching circuit is connected to the other end of the conductor. The loop antenna and the conductor are set to have a wavelength shorter than that of the frequency band to be used.

    摘要翻译： 构成底板的接地导体和由与接地导体分开形成的带状导体形成的环形天线设置在电介质基板的一个面上，并且发送器 - 接收器连接到环形天线的一端，用作 功率调度单元经由第一匹配电路和第二匹配电路连接到另一端。 由带状导体形成的导体设置在电介质基板的另一面上，与电介质基板相对的环形天线相对。 第三匹配电路连接到导体的一端，第四匹配电路连接到导体的另一端。 环形天线和导体被设置为具有比要使用的频带短的波长的波长。

    Antenna apparatus
    10.
    发明授权
    Antenna apparatus 失效
    天线装置

    公开(公告)号：US5926136A

    公开(公告)日：1999-07-20

    申请号：US852599

    申请日：1997-05-07

    申请人： Masataka Ohtsuka ,  Yoshihiko Konishi ,  Makoto Matsunaga ,  Shintaro Nakahara

    发明人： Masataka Ohtsuka ,  Yoshihiko Konishi ,  Makoto Matsunaga ,  Shintaro Nakahara

    IPC分类号： H01Q15/08 ,  H01Q1/32 ,  H01Q3/01 ,  H01Q3/02 ,  H01Q9/04 ,  H01Q13/08

    CPC分类号： H01Q9/0407 ,  H01Q3/02 ,  H01Q9/0414

    摘要： In an antenna apparatus in which n dielectric layers with .epsilon..sub.r1 -.epsilon..sub.rn in dielectric constants are respectively stacked between a ground plate and a major radiating conductor, the thickness t.sub.1 -t.sub.n of the dielectric layers are determined so as to satisfy substantially the following equations:(t.sub.1 +t.sub.2 + . . . +t.sub.n)/(t.sub.1 /.epsilon..sub.r1 +t.sub.2 /.epsilon..sub.r2 + . . . +t.sub.n /.epsilon..sub.rn)=.epsilon..sub.reff, andt.sub.1 +t.sub.2 + . . . t.sub.n =t.sub.minwith respect to a dielectric constant .epsilon..sub.reff of the antenna defined for a desired beam width, and the minimum value t.sub.min of the dielectric layers capable of ensuring a desired operation band and low reflection losses in this dielectric constant .epsilon..sub.reff. Thus, the thinnest antenna structure which can ensure a desired radiation in directions of low elevation angles, and desired operation bands and low reflection losses can be made.

    摘要翻译： 在其中介电常数中的ε1〜ε1的n个电介质层分别层叠在接地板和主辐射导体之间的天线装置中，电介质层的厚度t1-tn被确定为基本上满足以下等式 ：（t1 + t2 + ... + tn）/（t1 / epsilon r1 + t2 / epsilon r2 + ... + tn / epsilon rn）=εreff和t1 + t2 +。 。 。 相对于为期望波束宽度定义的天线的介电常数εreff，以及能够确保期望的操作频带的介电层的最小值tmin和在该介电常数εref中的低反射损耗，tn = tmin。 因此，可以制造能够确保在低仰角方向上期望的辐射以及期望的操作带和低反射损耗的最薄的天线结构。