公开(公告)号：US20070182634A1

公开(公告)日：2007-08-09

申请号：US10577685

申请日：2004-10-28

申请人： Atsushi Yamamoto ,  Hiroshi Iwai ,  Koichi Ogawa ,  Shotaro Nishimura ,  Hirotaka Ishihara

发明人： Atsushi Yamamoto ,  Hiroshi Iwai ,  Koichi Ogawa ,  Shotaro Nishimura ,  Hirotaka Ishihara

IPC分类号： H01Q1/38

CPC分类号： H01Q3/242 ,  H01Q3/28 ,  H01Q3/36 ,  H01Q13/06 ,  H01Q21/205

摘要： Four antenna units arranged adjacent to each other are respectively connected to switches, and are connected to load impedance elements via the switches, or connected to an output terminal and a comparator via a switch. Another ends of the load impedance elements are grounded. The comparator judges which antenna unit receives a radio signal having the maximum signal level among the antenna units. A controller controls the switches and the switch so that the antenna unit that receives the radio communication signal having the maximum signal level is connected to the output terminal and the other antenna units are connected to the load impedance elements.

摘要翻译： 彼此相邻布置的四个天线单元分别连接到开关，并且经由开关连接到负载阻抗元件，或者经由开关连接到输出端子和比较器。 负载阻抗元件的另一端接地。 比较器判断哪个天线单元在天线单元中接收到具有最大信号电平的无线电信号。 控制器控制开关和开关，使得接收具有最大信号电平的无线电通信信号的天线单元连接到输出端，而其它天线单元连接到负载阻抗元件。

公开(公告)号：US06985113B2

公开(公告)日：2006-01-10

申请号：US10824347

申请日：2004-04-15

申请人： Shotaro Nishimura ,  Atsushi Yamamoto ,  Koichi Ogawa ,  Hiroshi Iwai

发明人： Shotaro Nishimura ,  Atsushi Yamamoto ,  Koichi Ogawa ,  Hiroshi Iwai

IPC分类号： H01Q1/24

CPC分类号： H04B1/3838 ,  H01Q1/245 ,  H01Q3/44 ,  H01Q19/26 ,  H01Q21/29

摘要： A radio antenna apparatus is provided with an antenna connected with a radio communication circuit that transmits and receives a radio signal. A load impedance element is connected between a parasitic element of an electrical conductor plate and a ground of a housing of a radio communication apparatus including the radio communication circuit. A controller controls an element value of the load impedance element so as to set a current flowing on the housing to be equal to or smaller than a predetermined value when the radio communication apparatus transmits the radio signal, thereby controlling a specific absorption rate (SAR) to be equal to or smaller than a predetermined value.

摘要翻译： 无线电天线装置设置有与发送和接收无线电信号的无线电通信电路连接的天线。 负载阻抗元件连接在电导体板的寄生元件和包括无线电通信电路的无线电通信设备的外壳的接地之间。 当无线电通信装置发送无线电信号时，控制器控制负载阻抗元件的元件值，以便将在壳体上流动的电流设置为等于或小于预定值，从而控制特定吸收率（SAR） 等于或小于预定值。

公开(公告)号：US07528674B2

公开(公告)日：2009-05-05

申请号：US10594522

申请日：2006-01-24

申请人： Akira Kato ,  Koichi Ogawa ,  Hiroshi Iwai ,  Atsushi Yamamoto

发明人： Akira Kato ,  Koichi Ogawa ,  Hiroshi Iwai ,  Atsushi Yamamoto

IPC分类号： H03H7/38

CPC分类号： H04B1/18

摘要： There is provide a mobile radio apparatus capable of suppressing a mismatching loss, and increasing a transmission/reception sensitivity by means of instantly and adaptively matching the impedance between the antenna and the transmission/reception circuit whatever situation a mobile radio apparatus, such as a mobile phone or the like, may be. In a mobile radio apparatus (1), when starting control of the matching circuit (102), a control section (105) evaluates an initial chromosome stored in a storage section (106), and if there is an initial chromosome for providing an impedance matching, controls the matching circuit (102) so as to have a load value corresponding to this initial chromosome. If there is no initial chromosome for providing the impedance matching, the control section (105) evolves the initial chromosome with a genetic algorithm, derives a chromosome for providing the impedance matching, and controls the matching circuit (102) so as to have a load value corresponding to the derived chromosome.

摘要翻译： 提供一种能够抑制失配损失的移动无线电设备，并且通过立即且自适应地匹配天线和发送/接收电路之间的阻抗来增加发送/接收灵敏度，无论移动无线电设备如移动 电话等，可能是。 在移动无线电设备（1）中，当启动匹配电路（102）的控制时，控制部分（105）评估存储在存储部分（106）中的初始染色体，并且如果存在用于提供阻抗的初始染色体 匹配，控制匹配电路（102）以具有对应于该初始染色体的负载值。 如果没有用于提供阻抗匹配的初始染色体，则控制部分（105）用遗传算法演化初始染色体，导出染色体以提供阻抗匹配，并且控制匹配电路（102）以具有负载 对应于衍生染色体的值。

公开(公告)号：US06906677B2

公开(公告)日：2005-06-14

申请号：US09866996

申请日：2001-05-25

申请人： Atsushi Yamamoto ,  Hiroshi Iwai ,  Koichi Ogawa

发明人： Atsushi Yamamoto ,  Hiroshi Iwai ,  Koichi Ogawa

IPC分类号： H01Q1/00 ,  H01Q9/04 ,  H01Q9/30 ,  H01Q13/18 ,  H01Q19/00 ,  H01Q21/29 ,  H01Q1/42

CPC分类号： H01Q9/0457 ,  H01Q1/007 ,  H01Q9/0407 ,  H01Q9/30 ,  H01Q13/18 ,  H01Q19/00 ,  H01Q21/29

摘要： An antenna has a conductive bottom member; a conductive side member; and a conductive member arranged in a space surrounded by the bottom member and the side member, wherein the conductive member is connected to a signal line for transmission and/or reception.

摘要翻译： 天线具有导电底部构件; 导电侧构件; 以及布置在由所述底部构件和所述侧部构件包围的空间中的导电构件，其中所述导电构件连接到用于发射和/或接收的信号线。

公开(公告)号：US06850205B2

公开(公告)日：2005-02-01

申请号：US10629786

申请日：2003-07-30

申请人： Atsushi Yamamoto ,  Hiroshi Iwai ,  Koichi Ogawa

发明人： Atsushi Yamamoto ,  Hiroshi Iwai ,  Koichi Ogawa

IPC分类号： H01Q13/02 ,  H01Q13/08 ,  H01Q13/18 ,  H01Q19/00 ,  H01Q13/00

CPC分类号： H01Q13/08 ,  H01Q13/02 ,  H01Q13/18 ,  H01Q19/005

摘要： A waveguide antenna apparatus is provided including a rectangular waveguide having one end short-circuited by a terminating conductor and another end opened. The rectangular waveguide includes a grounding conductor and a ceiling conductor opposed to each other, and includes two side surface conductors joining the grounding conductor with the ceiling conductor and being opposed to each other. An antenna element has one end and another end, where one end thereof is connected with a position in the ceiling conductor in a vicinity of opened another end of the rectangular waveguide, and another end thereof is connected with a feeding portion located in the grounding conductor. The ceiling conductor includes a removed portion on the side of opened another end of the rectangular waveguide. Then an electromagnetic wave of a fed radio signal is radiated from the removed portion and opened another end of the rectangular waveguide.

摘要翻译： 提供了一种波导天线装置，包括一个矩形波导，其一端由端接导体短路，另一端打开。 矩形波导包括彼此相对的接地导体和天花板导体，并且包括将接地导体与天花板导体接合并且彼此相对的两个侧面导体。 天线元件具有一端和另一端，其一端与矩形波导的开放的另一端附近的天花板导体中的位置连接，另一端与位于接地导体中的馈电部分连接 。 天线导体包括在矩形波导的另一端开放侧的去除部分。 然后从去除部分辐射馈送的无线电信号的电磁波，并打开矩形波导的另一端。

公开(公告)号：US06633261B2

公开(公告)日：2003-10-14

申请号：US09988716

申请日：2001-11-20

申请人： Hiroshi Iwai ,  Atsushi Yamamoto ,  Koichi Ogawa ,  Shinji Kamaeguchi ,  Tsukasa Takahashi ,  Kenichi Yamada

发明人： Hiroshi Iwai ,  Atsushi Yamamoto ,  Koichi Ogawa ,  Shinji Kamaeguchi ,  Tsukasa Takahashi ,  Kenichi Yamada

IPC分类号： H01Q138

CPC分类号： H01Q1/243 ,  H01Q9/0421

摘要： An antenna is provided which can reconcile a low antenna resonance frequency and broadband frequency characteristics, while attaining stable impedance characteristics and enhanced design flexibility. A conductive plate is coupled to a conductive base plate via a first metal lead. A voltage is applied to the conductive plate from a supply point via a second metal lead. A conductive wall is electrically coupled to the conductive plate at one end thereof. An electromagnetic field coupling adjustment plate is electrically coupled to the other end of the conductive wall. The electromagnetic field coupling adjustment plate is disposed so as to leave a predetermined interspace between itself and the conductive base plate, thereby creating a capacitor in conjunction with the conductive base plate. The conductive wall and the electromagnetic field coupling adjustment plate are disposed so as to maximize a path length from a shot-circuiting portion (at which the conductive plate is coupled to the first metal lead) to an open end of the electromagnetic field coupling adjustment plate. Preferably, a current path extending from a supply portion (at which the conductive plate is coupled to the second metal lead) to the short-circuiting portion has a length equal to a ½ wavelength for a desired resonance frequency.

摘要翻译： 提供一种能够调和低天线谐振频率和宽带频率特性的天线，同时获得稳定的阻抗特性和增强的设计灵活性。 导电板通过第一金属引线耦合到导电基板。 电压通过第二金属引线从供电点施加到导电板。 导电壁在其一端电耦合到导电板。 电磁场耦合调节板电耦合到导电壁的另一端。 电磁场耦合调节板被设置成在其与导电基板之间留出预定的间隙，从而与导电基板一起形成电容器。 导电壁和电磁场耦合调节板被设置成使从射出电路部分（导电板耦合到第一金属引线的）到电磁场耦合调节板的开口端的路径长度最大化 。 优选地，从供电部分（其中导电板耦合到第二金属引线）延伸到短路部分的电流路径具有等于所需谐振频率的1/2波长的长度。

公开(公告)号：US06538618B2

公开(公告)日：2003-03-25

申请号：US09975517

申请日：2001-10-12

申请人： Atsushi Yamamoto ,  Hiroshi Iwai ,  Koichi Ogawa

发明人： Atsushi Yamamoto ,  Hiroshi Iwai ,  Koichi Ogawa

IPC分类号： H01Q142

CPC分类号： H01Q13/18 ,  H01Q9/0421 ,  H01Q9/30 ,  H01Q9/38 ,  H01Q13/10 ,  H01Q13/106

摘要： An antenna is provided having a relatively simple structure as arranged capable of operating at desired frequencies. The antenna has a chassis having a grounding conductor provided as a bottom surface, a ceiling conductor provided as a top surface opposite to the grounding conductor, and side conductors provided as antenna sides. At least one opening is provided in a part of said chassis, which opens for radiation of electric waves. A feeding point provided on the grounding conductor for connection to a power supply via a predetermined feeding line from the outside. An antenna element connected to the feeding point at one end while being connected to the ceiling conductor via a frequency selectable circuit at the other end, and surrounded by the side conductors.

摘要翻译： 提供具有相对简单结构的天线，其布置能够以期望的频率运行。 该天线具有底架，其具有设置为底面的接地导体，设置为与接地导体相对的顶表面的天花板导体，以及设置为天线侧的侧导体。 至少一个开口设置在所述底盘的一部分中，该开口用于电波的辐射。 馈电点设置在接地导体上，用于经由外部经过预定馈线从电源连接。 天线元件在一端连接到馈电点，同时通过另一端的频率可选择电路连接到天花板导体，并被侧导体包围。

公开(公告)号：US07439918B2

公开(公告)日：2008-10-21

申请号：US11294524

申请日：2005-12-06

申请人： Hiroshi Iwai ,  Atsushi Yamamoto ,  Koichi Ogawa ,  Yoshio Koyanagi

发明人： Hiroshi Iwai ,  Atsushi Yamamoto ,  Koichi Ogawa ,  Yoshio Koyanagi

IPC分类号： H01Q1/24

CPC分类号： H04B7/0845 ,  H01Q3/2611

摘要： An adaptive antenna apparatus includes antenna elements. One of the antenna elements has an electrical length L1 larger than λ/2, and equal to or smaller than a predetermined upper-limit wavelength, where λ is a wavelength of a radio signal. Another antenna element has an electrical length L2 equal to or larger than a predetermined lower-limit wavelength and equal to or smaller than λ/2. A controller adaptive-controls the adaptive antenna apparatus to form a radiation pattern of the adaptive antenna apparatus including a plurality of nulls substantively in a direction of an interference wave by adjusting at least one of an amplitude and a phase of each radio signal received by the first and second antenna elements.

摘要翻译： 自适应天线装置包括天线元件。 天线元件之一具有大于λ/ 2的电长度L 1，并且等于或小于预定的上限波长，其中λ是无线电信号的波长。 另一个天线元件的电长度L 2等于或大于预定的下限波长并且等于或小于λ/ 2。 控制器自适应控制自适应天线装置，以通过调整由干扰波方向接收的每个无线电信号的幅度和相位中的至少一个来形成在干扰波的方向上实质上包括多个零点的自适应天线装置的辐射图案 第一和第二天线元件。

公开(公告)号：US20070210899A1

公开(公告)日：2007-09-13

申请号：US10594522

申请日：2006-01-24

申请人： Akira Kato ,  Koichi Ogawa ,  Hiroshi Iwai ,  Atsushi Yamamoto

发明人： Akira Kato ,  Koichi Ogawa ,  Hiroshi Iwai ,  Atsushi Yamamoto

IPC分类号： G05B11/01

CPC分类号： H04B1/18

摘要： There is provide a mobile radio apparatus capable of suppressing a mismatching loss, and increasing a transmission/reception sensitivity by means of instantly and adaptively matching the impedance between the antenna and the transmission/reception circuit whatever situation a mobile radio apparatus, such as a mobile phone or the like, may be. In a mobile radio apparatus (1), when starting control of the matching circuit (102), a control section (105) evaluates an initial chromosome stored in a storage section (106), and if there is an initial chromosome for providing an impedance matching, controls the matching circuit (102) so as to have a load value corresponding to this initial chromosome. If there is no initial chromosome for providing the impedance matching, the control section (105) evolves the initial chromosome with a genetic algorithm, derives a chromosome for providing the impedance matching, and controls the matching circuit (102) so as to have a load value corresponding to the derived chromosome.

摘要翻译： 提供一种能够抑制失配损失的移动无线电设备，并且通过立即且自适应地匹配天线和发送/接收电路之间的阻抗来增加发送/接收灵敏度，无论移动无线电设备如移动 电话等，可能是。 在移动无线电设备（1）中，当启动匹配电路（102）的控制时，控制部分（105）评估存储在存储部分（106）中的初始染色体，并且如果存在用于提供阻抗的初始染色体 匹配，控制匹配电路（102）以具有对应于该初始染色体的负载值。 如果没有用于提供阻抗匹配的初始染色体，则控制部分（105）用遗传算法演化初始染色体，导出染色体以提供阻抗匹配，并且控制匹配电路（102）以具有负载 对应于衍生染色体的值。

公开(公告)号：US06809691B2

公开(公告)日：2004-10-26

申请号：US10405605

申请日：2003-04-03

申请人： Atsushi Yamamoto ,  Hiroshi Iwai ,  Koichi Ogawa

发明人： Atsushi Yamamoto ,  Hiroshi Iwai ,  Koichi Ogawa

IPC分类号： H01Q124

CPC分类号： H01Q9/0421 ,  H01Q3/24 ,  H01Q3/26 ,  H01Q13/18

摘要： A top conductor 11, a ground conductor 12, and side conductors 13 form an antenna box having two openings 22 and 23. Antenna elements 14 and 15 are placed inside of the antenna box, and are connected to power supply points 16 and 17, respectively. A power supply control circuit 20 has a switching function of connecting either one of the power supply points 16 and 17, to an external connecting terminal 21. Depending on the antenna element 14 or 15 being operated, the antenna has a directivity biased to a desired direction. The power supply control circuit 20 may have a signal combining/separating function, a phase shifter 26, or an amplitude adjusting circuit 27. With this, it is possible to provide a small, slim antenna capable of biasing the directivity to a desired direction and controlling the directivity even after installation.

摘要翻译： 顶导体11，接地导体12和侧导体13形成具有两个开口22和23的天线盒。天线元件14和15分别放置在天线盒内部，分别连接到电源点16和17 。 电源控制电路20具有将电源点16和17中的任一个连接到外部连接端子21的切换功能。根据正在操作的天线元件14或15，天线具有偏向所需的方向性 方向。 电源控制电路20可以具有信号组合/分离功能，移相器26或幅度调整电路27.由此，可以提供能够将方向性偏向期望方向的小型，细长的天线，以及 即使安装后也可以控制方向性。