公开(公告)号：US06661382B2

公开(公告)日：2003-12-09

申请号：US09961324

申请日：2001-09-25

申请人： Shuichi Sekine ,  Hiroshi Watanabe ,  Motoji Noda ,  Noriaki Odachi

发明人： Shuichi Sekine ,  Hiroshi Watanabe ,  Motoji Noda ,  Noriaki Odachi

IPC分类号： H01Q124

CPC分类号： H01Q1/242 ,  H01Q9/32

摘要： An antenna apparatus coupled to a feeding point arranged on a cavity is disclosed. The apparatus includes a linear element extending from the feeding point and having a physical length that is shorter than a one-quarter wavelength. A half-wave antenna element is connected to an end of the linear element. The apparatus also includes a metal conductor piece including a connecting point between the linear element and the half-wave antenna element and located close to one surface of the cavity. The linear element includes a first portion extending in a first direction opposite to that of the half-wave element from the feeding point and in parallel with one surface of the cavity and a second portion extending in a second direction, which is equal to a direction in which the half-wave antenna element extends, and in parallel with one surface of the cavity.

公开(公告)号：US06970136B2

公开(公告)日：2005-11-29

申请号：US10661594

申请日：2003-09-15

申请人： Shuichi Sekine ,  Hiroshi Watanabe ,  Motoji Noda ,  Noriaki Odachi

发明人： Shuichi Sekine ,  Hiroshi Watanabe ,  Motoji Noda ,  Noriaki Odachi

IPC分类号： H01Q1/24 ,  H01Q1/32 ,  H01Q9/30 ,  H01Q9/32

CPC分类号： H01Q1/242 ,  H01Q9/32

摘要： An antenna apparatus coupled to a feeding point arranged on a cavity is disclosed. The apparatus includes a linear element extending from the feeding point and having a physical length that is shorter than a one-quarter wavelength. A half-wave antenna element is connected to an end of the linear element. The apparatus also includes a metal conductor piece including a connecting point between the linear element and the half-wave antenna element and located close to one surface of the cavity. The linear element includes a first portion extending in a first direction opposite to that of the half-wave element from the feeding point and in parallel with one surface of the cavity and a second portion extending in a second direction, which is equal to a direction in which the half-wave antenna element extends, and in parallel with one surface of the cavity.

摘要翻译： 公开了耦合到布置在空腔上的馈电点的天线装置。 该装置包括从馈电点延伸并具有短于四分之一波长的物理长度的线性元件。 半波天线元件连接到线性元件的端部。 该装置还包括金属导体件，其包括在线性元件和半波天线元件之间的连接点并且靠近空腔的一个表面。 线性元件包括第一部分，该第一部分从与馈送点相反的第一方向延伸，并且与空腔的一个表面平行;第二部分沿第二方向延伸，第二部分等于方向 其中半波天线元件延伸并与空腔的一个表面平行。

公开(公告)号：US06701167B2

公开(公告)日：2004-03-02

申请号：US09777911

申请日：2001-02-07

申请人： Noriaki Odachi ,  Syuichi Sekine

发明人： Noriaki Odachi ,  Syuichi Sekine

IPC分类号： H04B138

CPC分类号： H01Q1/244 ,  H01Q1/242

摘要： A portable radio terminal comprises a housing, a radio circuit included in the housing, a matching circuit mounted on the top of the housing at a position which is offset from the longitudinal center line of the housing, a load connected to the tip of the matching circuit, and a linear antenna connected to the load. This portable radio terminal further comprises load changing means for changing the value of the load. The matching circuit may comprise a meander matching element, a zigzag-shaped matching element, a helical matching element, a conical matching element, a rectangular helical matching element or a pyramid helical matching element which are formed so as to a predetermined shape, such as a meander shape, a zigzag shape, a helical shape, a conical shape, a rectangular helical shape or pyramid helical shape. Thus, even if the terminal is held in a user's left or right hand, it is possible to increase the quantity of radiation of vertically polarized waves, so that it is possible to provide the optimum antenna construction to carry out good radio communication.

公开(公告)号：US06934557B2

公开(公告)日：2005-08-23

申请号：US10256080

申请日：2002-09-27

申请人： Shu-ichi Sekine ,  Takayoshi Itoh ,  Yuji Iseki ,  Naoko Ono ,  Keiichi Yamaguchi ,  Hiroyuki Kayano ,  Akihiro Tsujimura ,  Kazuhiro Inoue ,  Noriaki Odachi ,  Yasushi Murakami

发明人： Shu-ichi Sekine ,  Takayoshi Itoh ,  Yuji Iseki ,  Naoko Ono ,  Keiichi Yamaguchi ,  Hiroyuki Kayano ,  Akihiro Tsujimura ,  Kazuhiro Inoue ,  Noriaki Odachi ,  Yasushi Murakami

IPC分类号： H01Q1/24 ,  H03H7/40 ,  H04B1/04 ,  H04M1/00

CPC分类号： H03H7/40 ,  H01Q1/242 ,  H04B1/0458

摘要： In a radio equipment of portable type, the impedance of an antenna is optimized by adjusting a matching circuit which has the adjustment function and is connected to an antenna, based on a reflection phase sent back from the antenna, outputted from a reflection phase detector, and a current supplied to a transmitter-receiver which generates a transmitting signal.

摘要翻译： 在便携式无线电设备中，通过基于从反射相位检测器输出的从天线发回的反射相位调整具有调整功能并连接到天线的匹配电路来优化天线的阻抗， 以及提供给产生发送信号的收发器的电流。

公开(公告)号：US06336037B1

公开(公告)日：2002-01-01

申请号：US09264135

申请日：1999-03-05

申请人： Syuuichi Sekine ,  Noriaki Odachi ,  Toshiki Miyasaka

发明人： Syuuichi Sekine ,  Noriaki Odachi ,  Toshiki Miyasaka

IPC分类号： H04B138

CPC分类号： H04B1/3833 ,  H01Q1/244

摘要： A case with a shape of a thin rectangular parallelepiped which incorporates a radio signal processing circuit is provided with a data input/output section disposed on its surface and a microphone and a speaker disposed on either longitudinal end of the surface. Disposed inside of the case is a linear antenna, which longitudinally extends and goes out of the case from its side, and is placed adjacent to the surface of the case. Thus, the antenna characteristics are protected from deterioration even when the device is used on the desk. Further, the speaker is disposed in one of the sections divided by the longitudinal center line on the case surface and the linear antenna is disposed in the other section. Thus, the antenna gain fluctuation caused by the human body can be prevented so that the stable antenna characteristics can be maintained without being affected by the environment of utilization.

摘要翻译： 具有包括无线电信号处理电路的薄的长方体形状的壳体设置有设置在其表面上的数据输入/输出部分和设置在表面的任一纵向端上的麦克风和扬声器。 设置在壳体内部的是线性天线，其从其侧面纵向延伸并远离壳体，并且被放置在与壳体的表面相邻的位置。 因此，即使在桌面上使用该装置，也可以防止天线特性劣化。 此外，扬声器设置在由壳体表面上的纵向中心线划分的部分之一中，并且线性天线设置在另一部分中。 因此，可以防止由人体引起的天线增益波动，从而可以保持稳定的天线特性而不受利用环境的影响。

公开(公告)号：US07079878B2

公开(公告)日：2006-07-18

申请号：US10761328

申请日：2004-01-22

申请人： Noriaki Odachi ,  Syuichi Sekine

发明人： Noriaki Odachi ,  Syuichi Sekine

IPC分类号： H04M1/00

CPC分类号： H01Q1/244 ,  H01Q1/242

摘要： A portable radio terminal comprises a housing, a radio circuit included in the housing, a matching circuit mounted on the top of the housing at a position which is offset from the longitudinal center line of the housing, a load connected to the tip of the matching circuit, and a linear antenna connected to the load. This portable radio terminal further comprises load changing means for changing the value of the load. The matching circuit may comprise a meander matching element, a zigzag-shaped matching element, a helical matching element, a conical matching element, a rectangular helical matching element or a pyramid helical matching element which are formed so as to a predetermined shape, such as a meander shape, a zigzag shape, a helical shape, a conical shape, a rectangular helical shape or pyramid helical shape. Thus, even if the terminal is held in a user's left or right hand, it is possible to increase the quantity of radiation of vertically polarized waves, so that it is possible to provide the optimum antenna construction to carry out good radio communication.

摘要翻译： 便携式无线电终端包括壳体，包括在壳体中的无线电电路，匹配电路，其在与壳体的纵向中心线偏移的位置处安装在壳体的顶部，负载连接到匹配的尖端 电路和连接到负载的线性天线。 该便携式无线电终端还包括用于改变负载值的负载改变装置。 匹配电路可以包括形成为预定形状的曲折匹配元件，之字形匹配元件，螺旋匹配元件，锥形匹配元件，矩形螺旋匹配元件或棱锥形螺旋匹配元件，例如 曲折形状，曲折形状，螺旋形状，圆锥形，矩形螺旋形或棱锥形螺旋形状。 因此，即使终端被保持在用户的左手或右手中，也可以增加垂直极化波的辐射量，从而可以提供最佳的天线结构来进行良好的无线电通信。

公开(公告)号：US06377213B1

公开(公告)日：2002-04-23

申请号：US09472809

申请日：1999-12-28

申请人： Noriaki Odachi ,  Hiroki Shoki

发明人： Noriaki Odachi ,  Hiroki Shoki

IPC分类号： G01S316

CPC分类号： G01S3/48 ,  G01S3/74 ,  H01Q25/002

摘要： A method for estimating an arrival direction of an electromagnetic wave by the BS-MUSIC, by inputting into one receiver arrival wave reception signals received by a plurality of antenna elements constituting an array antenna. At first, a wide range is scanned in a plurality of directions with a wide antenna beam and a first estimation of arrival direction is carried out. Next, a plurality of directions are scanned with a narrow antenna beam to cover only the directions obtained as a result of the first estimation of arrival direction. Thus, a second estimation of arrival direction is carried out. With this arrangement, it is possible to provide a method of estimating an arrival direction by using a small number of receivers in a small apparatus at low cost. Further, based on this method, it is also possible to estimate an arrival direction in a small calculation volume even under the unknown environment of waves.

摘要翻译： 一种用于通过输入由构成阵列天线的多个天线元件接收的一个接收机到达波接收信号中来估计BS-MUSIC的电磁波到达方向的方法。 首先，用宽天线波束在多个方向上扫描宽范围，并且执行到达方向的第一估计。 接下来，用窄天线波束扫描多个方向，以仅覆盖作为到达方向的第一估计结果获得的方向。 因此，进行到达方向的第二估计。 通过这种布置，可以提供一种通过在小型装置中以低成本使用少数接收器来估计到达方向的方法。 此外，基于该方法，即使在未知的波浪环境下，也可以在小的计算量中估计到达方向。

公开(公告)号：US20050261036A1

公开(公告)日：2005-11-24

申请号：US11183009

申请日：2005-07-18

申请人： Shu-ichi Sekine ,  Takayoshi Itoh ,  Yuji Iseki ,  Naoko Ono ,  Keiichi Yamaguchi ,  Hiroyuki Kayano ,  Akihiro Tsujimura ,  Kazuhiro Inoue ,  Noriaki Odachi ,  Yasushi Murakami

发明人： Shu-ichi Sekine ,  Takayoshi Itoh ,  Yuji Iseki ,  Naoko Ono ,  Keiichi Yamaguchi ,  Hiroyuki Kayano ,  Akihiro Tsujimura ,  Kazuhiro Inoue ,  Noriaki Odachi ,  Yasushi Murakami

IPC分类号： H01Q1/24 ,  H03H7/40 ,  H04B1/04 ,  H04B1/46

CPC分类号： H03H7/40 ,  H01Q1/242 ,  H04B1/0458

摘要： In a radio equipment of portable type, the impedance of an antenna is optimized by adjusting a matching circuit which has the adjustment function and is connected to an antenna, based on a reflection phase sent back from the antenna, outputted from a reflection phase detector, and a current supplied to a transmitter-receiver which generates a transmitting signal.

公开(公告)号：US06346916B1

公开(公告)日：2002-02-12

申请号：US09512824

申请日：2000-02-25

申请人： Noriaki Odachi ,  Syuichi Sekine

发明人： Noriaki Odachi ,  Syuichi Sekine

IPC分类号： H01Q124

CPC分类号： H01Q1/243 ,  H01Q9/16

摘要： Antenna apparatus is comprised of dipole antenna arranged proximate to a surface of metal housing including radio device circuit and having two quarter wavelength elements having opposite end portions being feed points, short-circuit element short-circuiting the quarter wavelength elements, and coaxial feed line having outer conductor and central conductor having one ends connected to the feed points, respectively, and connecting the feed points to radio device circuit. The coaxial feed line is arranged along part of the quarter wavelength element and part of the short-circuit element and branched from central portion of the short-circuit element. The outer conductor is electrically connected to part of the quarter wavelength element and part of the short-circuit element. Currents leaked onto the feed line and flowing through the two quarter wavelength elements are also divided to the short-circuit element. The currents are mixed at a position at which the coaxial feed line is branched and flow into the outer conductor of the coaxial feed line as a leak current from the dipole antenna. The currents branched from the two quarter wavelength elements to the short-circuit element are almost opposite in phase to each other. Thus, the currents cancel each other and the leak current becomes zero.

摘要翻译： 天线装置包括靠近金属外壳的表面设置的偶极天线，包括无线电设备电路，并且具有两个四分之一波长元件，其两端具有馈电点，短路元件使四分之一波长元件短路，同轴馈线具有 外导体和中心导体，其一端分别连接到馈电点，并将馈电点连接到无线电设备电路。 同轴馈电线沿着四分之一波长元件的一部分和短路元件的一部分布置并且从短路元件的中心部分分支。 外部导体电连接到四分之一波长元件的一部分和短路元件的一部分。 泄漏到馈电线上并流过两个四分之一波长元件的电流也被划分为短路元件。 电流在同轴馈电线分支的位置处混合，并且作为来自偶极天线的泄漏电流流入同轴馈电线的外导体。 从两个四分之一波长元件分支到短路元件的电流几乎彼此相位相反。 因此，电流相互抵消，漏电流变为零。