公开(公告)号：US08200302B2

公开(公告)日：2012-06-12

申请号：US12517316

申请日：2008-09-30

申请人： Atsushi Yamamoto ,  Hiroshi Iwai ,  Tsutomu Sakata ,  Yoshio Koyanagi ,  Toshiteru Hayashi

发明人： Atsushi Yamamoto ,  Hiroshi Iwai ,  Tsutomu Sakata ,  Yoshio Koyanagi ,  Toshiteru Hayashi

IPC分类号： H04M1/00

CPC分类号： H01Q1/243 ,  H01Q9/0421 ,  H01Q9/16 ,  H04M1/0216

摘要： A housing antenna is small enough in size so as to be accommodated in a mobile device. The antenna has a number of feeding points that allow the antenna to operate as a number of antenna elements. The antenna is capable of realizing high speed communication by increasing communication capacity.

摘要翻译： 外壳天线的尺寸足够小，以便容纳在移动设备中。 天线具有允许天线作为多个天线元件工作的多个馈电点。 该天线能够通过增加通信能力来实现高速通信。

公开(公告)号：US08190104B2

公开(公告)日：2012-05-29

申请号：US12361770

申请日：2009-01-29

申请人： Atsushi Yamamoto ,  Hiroshi Iwai ,  Tsutomu Sakata ,  Yoshio Koyanagi ,  Toshiteru Hayashi

发明人： Atsushi Yamamoto ,  Hiroshi Iwai ,  Tsutomu Sakata ,  Yoshio Koyanagi ,  Toshiteru Hayashi

IPC分类号： H04B1/44

CPC分类号： H04B7/0808 ,  H04B7/0825 ,  H04B7/0831 ,  H04B7/0874

摘要： A controller of a MIMO antenna apparatus calculates a current transmission capacity based on signal levels detected by a signal level detector circuit. The controller calculates an estimated transmission capacity assuming that at least one of antenna elements currently connected to a MIMO modulator and demodulator circuit is changed to a further antenna element not connected to the MIMO modulator and demodulator circuit, based on the detected signal levels and degrees of electromagnetic coupling stored in a degree-of-coupling memory. The controller controls a switch circuit to connect the further antenna element to the MIMO modulator and demodulator circuit when the current transmission capacity becomes lower than the estimated transmission capacity.

摘要翻译： MIMO天线装置的控制器基于由信号电平检测器电路检测到的信号电平来计算当前传输容量。 控制器计算估计的传输容量，假设当前连接到MIMO调制器和解调器电路的天线元件中的至少一个被改变为未连接到MIMO调制器和解调器电路的另外的天线元件，基于检测到的信号电平和 存储在耦合度存储器中的电磁耦合。 当当前传输容量变得低于估计的传输容量时，控制器控制开关电路将另外的天线元件连接到MIMO调制器和解调器电路。

公开(公告)号：US20120007785A1

公开(公告)日：2012-01-12

申请号：US13257108

申请日：2010-12-20

申请人： Satoru Amari ,  Atsushi Yamamoto ,  Tsutomu Sakata

发明人： Satoru Amari ,  Atsushi Yamamoto ,  Tsutomu Sakata

IPC分类号： H01Q1/50

CPC分类号： H01Q9/0407 ,  H01Q9/0428 ,  H01Q9/0435 ,  H01Q9/0442

摘要： An antenna element has a slit including a first portion and a second portion, the first portion extending in a first direction so as to separate first and second feed points from each other, and the second portion extending in a second direction different from the first direction. The slit is configured to resonate at an isolation frequency to produce isolation between the first and second feed points, and configured to form a current path around the slit. A current distribution along the current path generated by exciting through the first feed point is different from a current distribution along the current path generated by exciting through the second feed point, thus providing different radiation characteristics by the different current distributions.

摘要翻译： 天线元件具有包括第一部分和第二部分的狭缝，所述第一部分沿第一方向延伸以便将第一和第二馈送点彼此分离，并且所述第二部分沿与第一方向不同的第二方向延伸 。 狭缝被配置为以隔离频率谐振以在第一和第二馈电点之间产生隔离，并且被配置成形成围绕狭缝的电流路径。 沿着通过第一馈电点激励产生的电流路径的电流分布不同于沿着通过第二馈电点激励而产生的电流路径的电流分布，从而通过不同的电流分布提供不同的辐射特性。

公开(公告)号：US20110122032A1

公开(公告)日：2011-05-26

申请号：US13003814

申请日：2010-04-28

申请人： Tsutomu Sakata ,  Atsushi Yamamoto ,  Satoru Amari

发明人： Tsutomu Sakata ,  Atsushi Yamamoto ,  Satoru Amari

IPC分类号： G01R29/08

CPC分类号： H01Q3/30 ,  G01R29/10 ,  H01Q1/125 ,  H01Q1/1257 ,  H04B17/104 ,  H04B17/12 ,  H04B17/364

摘要： An antenna evaluation apparatus includes receiving antennas to be evaluated, scatterer antennas surrounding the receiving antennas, a signal generator, a divider, a phase-shift circuit, and a computer. The computer generates first and second initial phase vectors each corresponding to a different set of multipath waves, determines a third initial phase vector including arbitrary initial phases each between a pair of corresponding initial phases in the first and second initial phase vectors, adjusts the phases of the radio frequency signals using the phase-shift circuit such that the phases of the radio frequency signals have corresponding initial phases in the third initial phase vector, and makes the adjusted radio frequency signals radiate.

摘要翻译： 天线评估装置包括接收待评估的天线，围绕接收天线的散射体天线，信号发生器，分频器，相移电路和计算机。 计算机产生每个对应于不同组的多路径波的第一和第二初始相位矢量，确定包括在第一和第二初始相位矢量中的一对对应初始相位之间的任意初始相位的第三初始相位矢量， 使用相移电路的射频信号，使得射频信号的相位在第三初始相位矢量中具有对应的初始相位，并且使调整的射频信号发射。

公开(公告)号：US20110079417A1

公开(公告)日：2011-04-07

申请号：US12995876

申请日：2008-12-18

申请人： Takashi Okuhara ,  Tsutomu Sakata ,  Satoshi Ujita

发明人： Takashi Okuhara ,  Tsutomu Sakata ,  Satoshi Ujita

IPC分类号： H01B17/58

CPC分类号： B60R16/0222

摘要： Even if a wire harness that passes a grommet is bent sharply, a vehicle body latch recess of the grommet is not deformed, thereby enhancing a sealing function. A grommet includes: an inner tube for passing electrical cables in said wire harness in a close contact manner; and an outer tube contiguous with an outer peripheral surface of said inner tube and provided with a slant wall section. The slant wall section of the outer tube is provided with a curved portion at an outer diametrical position having an outer diameter corresponding to an inner diameter of the through-hole. The curved portion has a different inclination angle from the slant wall section. An inclination angle of an outer peripheral surface of the slant wall section at a larger diameter side with respect to the curved portion is set to be smaller than an inclination angle at a smaller diameter side with respect to the curved portion. A larger thickness portion is contiguous with a larger diameter end of the slant wall in parallel to an axial direction of the inner tube. A vehicle body latch recess is provided in an annular manner in an outer peripheral surface of a boundary area between the larger diameter end of the slant wall section and the larger thickness portion. A part from an inner peripheral surface of the larger thickness portion to an inner peripheral surface corresponding to the curved portion of the slant wall section extends in parallel to the axial direction of the inner tube. The part has a larger thickness. The slant wall section is provided on an outer peripheral surface with a plurality of stepped projecting ribs that extend from a smaller diameter end of the slant wall section to the larger diameter end and are spaced apart from one another in a peripheral direction. The slant wall section is provided in an inner peripheral surface of each stepped projecting rib with a recess that extends along a whole longitudinal length of the each stepped projecting rib.

摘要翻译： 即使通过索环的线束急剧地弯曲，护环的车身闩锁凹部也不会变形，从而增强密封功能。 索环包括：用于以紧密接触的方式在所述线束中通过电缆的内管; 以及与所述内管的外周面邻接并具有倾斜壁部的外管。 外管的倾斜壁部在外直径位置具有弯曲部分，其外径对应于通孔的内径。 弯曲部分具有与倾斜壁部分不同的倾斜角度。 相对于弯曲部，较大直径侧的倾斜壁部的外周面的倾斜角度被设定为小于相对于弯曲部的小直径侧的倾斜角度。 较大的厚度部分与平行于内管的轴向方向的倾斜壁的较大直径端连续。 在倾斜壁部分的较大直径端部与较大厚度部分之间的边界区域的外周表面中以环形方式设置车体闩锁凹部。 从较大厚度部分的内周面到对应于倾斜壁部分的弯曲部分的内周面的部分平行于内管的轴向延伸。 该部件的厚度较大。 倾斜壁部设置在外周面上，具有从倾斜壁部的较小直径端延伸到较大直径端的多个阶梯状突出肋，并且在圆周方向上彼此间隔开。 倾斜壁部设置在每个阶梯状突出肋的内周面上，具有沿着各台阶突出肋的整个纵向长度延伸的凹部。

公开(公告)号：US20100195753A1

公开(公告)日：2010-08-05

申请号：US12670200

申请日：2009-05-19

申请人： Atsushi Yamamoto ,  Hiroshi Iwai ,  Satoru Amari ,  Tsutomu Sakata

发明人： Atsushi Yamamoto ,  Hiroshi Iwai ,  Satoru Amari ,  Tsutomu Sakata

IPC分类号： H04L1/02

CPC分类号： H04B7/04 ,  H01Q1/243 ,  H01Q9/0407 ,  H01Q13/10 ,  H01Q21/28

摘要： A MIMO antenna apparatus is provided with: an upper housing having slits; first feed points through which the upper housing itself is excited as first antennas; second feed points through which the slits are excited as second antennas; switch circuits, each of which is connected to one of the first feed points and one of the second feed points, and connects one of the two feed points to an A/D converter circuit-; a signal level detector circuit detecting signal levels of received radio signals; and a controller that controls the switches to change a feed point connected to the A/D converter circuit, when the detected signal level is less than or equal to a predetermined threshold value. The slits are located between the first antennas.

摘要翻译： MIMO天线装置设置有：具有狭缝的上壳体; 第一馈电点，上壳体本身被激发作为第一天线; 狭缝被第二天线激励的第二馈电点; 开关电路，每个开关电路连接到第一馈电点中的一个和第二馈电点中的一个，并将两个馈电点中的一个连接到A / D转换器电路; 信号电平检测电路，检测所接收的无线电信号的信号电平; 以及控制器，当检测到的信号电平小于或等于预定阈值时，控制开关改变连接到A / D转换器电路的馈电点。 狭缝位于第一天线之间。

公开(公告)号：US20090196371A1

公开(公告)日：2009-08-06

申请号：US12361770

申请日：2009-01-29

申请人： Atsushi YAMAMOTO ,  Hiroshi IWAI ,  Tsutomu SAKATA ,  Yoshio KOYANAGI ,  Toshiteru HAYASHI

发明人： Atsushi YAMAMOTO ,  Hiroshi IWAI ,  Tsutomu SAKATA ,  Yoshio KOYANAGI ,  Toshiteru HAYASHI

IPC分类号： H04L1/02

CPC分类号： H04B7/0808 ,  H04B7/0825 ,  H04B7/0831 ,  H04B7/0874

摘要： A controller of a MIMO antenna apparatus calculates a current transmission capacity based on signal levels detected by a signal level detector circuit. The controller calculates an estimated transmission capacity assuming that at least one of antenna elements currently connected to a MIMO modulator and demodulator circuit is changed to a further antenna element not connected to the MIMO modulator and demodulator circuit, based on the detected signal levels and degrees of electromagnetic coupling stored in a degree-of-coupling memory. The controller controls a switch circuit to connect the further antenna element to the MIMO modulator and demodulator circuit when the current transmission capacity becomes lower than the estimated transmission capacity.

摘要翻译： MIMO天线装置的控制器基于由信号电平检测器电路检测到的信号电平来计算当前传输容量。 控制器计算估计的传输容量，假设当前连接到MIMO调制器和解调器电路的天线元件中的至少一个被改变为未连接到MIMO调制器和解调器电路的另外的天线元件，基于检测到的信号电平和 存储在耦合度存储器中的电磁耦合。 当当前传输容量变得低于估计的传输容量时，控制器控制开关电路将另外的天线元件连接到MIMO调制器和解调器电路。

公开(公告)号：US07557761B2

公开(公告)日：2009-07-07

申请号：US12015005

申请日：2008-01-16

申请人： Hiroshi Iwai ,  Atsushi Yamamoto ,  Tsutomu Sakata ,  Toshiteru Hayashi ,  Kenichi Yamada

发明人： Hiroshi Iwai ,  Atsushi Yamamoto ,  Tsutomu Sakata ,  Toshiteru Hayashi ,  Kenichi Yamada

IPC分类号： H01Q1/24

CPC分类号： H01Q1/521 ,  H01Q5/321 ,  H01Q9/30 ,  H01Q21/28

摘要： An array antenna apparatus includes a first feeding element having a first feed point, a second feeding element having a second feed point, and a first parasitic element electrically connected to the respective first and second feeding elements. In a first frequency band, respective resonances in the feeding elements occur independent of each other, by eliminating electromagnetic mutual coupling between the feeding elements, and exciting the first feeding element through the first feed point as well as exciting the second feeding element through the second feed point. In a second frequency band lower than the first frequency band, a loop antenna having a certain electrical length is formed by the first and second feeding elements and the first parasitic element, and a resonance of the loop antenna substantially occurs by exciting the first feeding element through the first feed point.

摘要翻译： 阵列天线装置包括具有第一馈电点的第一馈电元件，具有第二馈电点的第二馈电元件以及电连接到相应的第一和第二馈电元件的第一寄生元件。 在第一频带中，通过消除馈电元件之间的电磁互耦，并且通过第一馈电点激励第一馈电元件以及通过第二馈电元件激励第二馈电元件，馈送元件中的相应谐振彼此独立地发生， 饲料点 在低于第一频带的第二频带中，具有一定电长度的环形天线由第一和第二馈电元件和第一寄生元件形成，并且环形天线的谐振基本上通过激励第一馈电元件 通过第一个饲料点。

公开(公告)号：US20080143613A1

公开(公告)日：2008-06-19

申请号：US11951153

申请日：2007-12-05

申请人： Hiroshi IWAI ,  Atsushi Yamamoto ,  Tsutomu Sakata ,  Satoru Amari

发明人： Hiroshi IWAI ,  Atsushi Yamamoto ,  Tsutomu Sakata ,  Satoru Amari

IPC分类号： H01P5/18 ,  H01Q1/24

CPC分类号： H01Q1/243 ,  H01Q3/2605 ,  H01Q3/28 ,  H01Q3/36 ,  H01Q9/04

摘要： An antenna apparatus includes a first feeding point and a second feeding point provided at respective positions on an antenna element. The antenna element is excited through the first and second feeding points simultaneously so as to operate as a first antenna portion and a second antenna portion simultaneously, the first antenna portion and the second antenna portion correspond to the first and second feeding points, respectively. The antenna element further includes, between the first and second feeding points, an electromagnetic coupling adjuster for making an amount of isolation between the first and second antenna portions.

摘要翻译： 天线装置包括设置在天线元件上的各个位置的第一馈电点和第二馈电点。 天线元件通过第一和第二馈电点同时激励，以便同时作为第一天线部分和第二天线部分工作，第一天线部分和第二天线部分别分别对应于第一和第二馈电点。 天线元件还包括在第一和第二馈电点之间的用于在第一和第二天线部分之间形成隔离量的电磁耦合调节器。

公开(公告)号：US20080062065A1

公开(公告)日：2008-03-13

申请号：US11889742

申请日：2007-08-16

申请人： Atsushi Yamamoto ,  Hiroshi Iwai ,  Tsutomu Sakata

发明人： Atsushi Yamamoto ,  Hiroshi Iwai ,  Tsutomu Sakata

IPC分类号： H01Q1/50

CPC分类号： H01Q19/30 ,  H01Q1/243 ,  H01Q19/32

摘要： A MIMO antenna apparatus includes a plurality of feeding antenna elements, a parasitic element electromagnetically coupled to each feeding antenna element, and a variable impedance load element connected to the parasitic element. A signal level comparator circuit detects received signal levels of received wireless signals and compares the received signal levels with each other, and thus detects the minimum received signal level. A controller controls an impedance value of the variable impedance load element based on the received signal levels detected by the signal level comparator circuit, such that the received signal level of the wireless signal having the minimum received signal level is substantially maximized.

摘要翻译： MIMO天线装置包括多个馈电天线元件，电磁耦合到每个馈电天线元件的寄生元件和连接到寄生元件的可变阻抗负载元件。 信号电平比较器电路检测接收到的无线信号的接收信号电平，并将接收信号电平彼此进行比较，从而检测最小接收信号电平。 控制器基于由信号电平比较器电路检测到的接收信号电平来控制可变阻抗负载元件的阻抗值，使得具有最小接收信号电平的无线信号的接收信号电平基本上最大化。