Mobile radio antenna
    41.
    发明授权
    Mobile radio antenna 失效
    移动无线电天线

    公开(公告)号:US5969690A

    公开(公告)日:1999-10-19

    申请号:US896976

    申请日:1997-07-18

    摘要: Although conventional antennas have characteristics suitable for mobile radio base stations, their vertical dimension is large, and locations of their installation are limited. A radiator for an first upper antenna 32 is arranged in a hollow nonconductive radome 2, using an internal conductor 7a and a metal pipe 10. A radiator for a second lower antenna 34 is arranged in the radome 2, using metal pipes 14 and 15. Two parasitic elements 31 are installed substantially in parallel with the first antenna 32 below a feeding point 9. Two parasitic elements 33 are installed substantially in parallel with the second antenna 34 above a feeding point 13. These allow the tilt angle to be freely set between -10.degree. and +10.degree. by adjusting the parasitic element length and the antenna to be reduced in size.

    摘要翻译: 虽然常规天线具有适合于移动无线电基站的特征,但其垂直尺寸大,并且其安装位置受到限制。 第一上天线32的散热器使用内部导体7a和金属管10布置在中空非导电天线罩2中。第二下天线34的散热器使用金属管14和15布置在天线罩2中。 两个寄生元件31在馈电点9的下方与第一天线32基本上平行地安装。两个寄生元件33基本上与馈电点13上方的第二天线34平行地安装。这允许倾斜角度在 -10°和+10°,通过调整寄生元件长度和天线尺寸来减小。

    Small antenna
    42.
    发明授权
    Small antenna 失效
    小天线

    公开(公告)号:US4700194A

    公开(公告)日:1987-10-13

    申请号:US776960

    申请日:1985-09-17

    CPC分类号: H01Q9/0421

    摘要: A small antenna comprising a dielectric substrate, a radiation element provided on one major surface of the dielectric substrate, a ground element provided on the other major surface of the dielectric substrate. A feed point on the ground element is located at a position where a voltage of a standing voltage wave induced on the ground element becomes minimum. The antenna may be further provided with a short-circuit element for electrically connecting one ends of the radiation and ground elements.

    摘要翻译: 一种小型天线,包括电介质基片,设置在电介质基片的一个主表面上的辐射元件,设置在电介质基底的另一个主表面上的接地元件。 接地元件上的馈电点位于在接地元件上感应的驻波电压的电压变得最小的位置。 天线还可以设置有用于电连接辐射和接地元件的一端的短路元件。

    Adaptive antenna apparatus including adaptive controller for adaptive controlling at least two antenna elements
    44.
    发明授权
    Adaptive antenna apparatus including adaptive controller for adaptive controlling at least two antenna elements 有权
    自适应天线装置包括用于自适应控制至少两个天线元件的自适应控制器

    公开(公告)号:US07439918B2

    公开(公告)日:2008-10-21

    申请号:US11294524

    申请日:2005-12-06

    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。

    Adaptive antenna apparatus provided with a plurality of pairs of bidirectional antennas
    45.
    发明授权
    Adaptive antenna apparatus provided with a plurality of pairs of bidirectional antennas 失效
    具有多对双向天线的自适应天线装置

    公开(公告)号:US07432857B2

    公开(公告)日:2008-10-07

    申请号:US10981624

    申请日:2004-11-05

    摘要: An adaptive antenna apparatus is provided with a total of four or more, even number N of antennas including a plurality of pairs of antennas each having a bidirectional characteristic. The N antennas are provided respectively at vertexes of a polygon of the same number as the number N of the antennas, so that each pair of antennas of the plurality of pairs of antennas opposes to each other. An adaptive control circuit takes an adaptive control over radio signals using one pair of antennas opposing to each other among the N antennas. In the adaptive antenna apparatus, the each pair of antennas is provided to oppose to each other so that axes of directions of main beams of the directional characteristics of the each pair of antennas substantially coincide with each other.

    摘要翻译: 自适应天线装置设置有总共四个或更多个偶数N个天线,包括多个具有双向特性的天线对。 N个天线分别设置在与天线数N相同数量的多边形的顶点处,使得多对天线中的每对天线彼此相对。 自适应控制电路使用在N个天线中彼此相对的一对天线对无线电信号进行自适应控制。 在自适应天线装置中,每对天线设置成彼此相对,使得每对天线的方向特性的主波束的方向轴线彼此大致一致。

    Disk Autochanger
    46.
    发明申请
    Disk Autochanger 有权
    磁盘自动转换器

    公开(公告)号:US20080155577A1

    公开(公告)日:2008-06-26

    申请号:US10589834

    申请日:2005-05-18

    IPC分类号: G11B17/04

    CPC分类号: G11B17/021 G11B17/223

    摘要: A disc autochanger improving on a conventional disc separating mechanism to enable the device to be reduced in size is provided, comprising a plurality of disc holding members 4 (4-1 to 4-6), a splitting member 21 splitting the plurality of disc holding members 4 to separate them at the disc holding member for playback/recording, and an elevator mechanism 6 making the plurality of disc holding members 4 move in the elevation direction to make the disc holding member for playback (recording) move to the position for splitting the disc holding members and further enlarge the split.

    摘要翻译: 提供了一种改进传统的光盘分离机构以使装置减小尺寸的光盘自动转换器,包括多个光盘保持部件4(4-6-1),分割部件21将多个光盘保持 构件4将其分离在用于回放/记录的盘保持构件上,以及使多个盘保持构件4沿高度方向移动的升降机构6,使得用于回放的盘保持构件(记录)移动到分割位置 光盘保持构件并进一步放大分割。

    Mobile Radio Appartus Capable of Adaptive Impedace Matching
    48.
    发明申请
    Mobile Radio Appartus Capable of Adaptive Impedace Matching 有权
    移动无线电Appartus能够进行自适应匹配

    公开(公告)号:US20070210899A1

    公开(公告)日:2007-09-13

    申请号:US10594522

    申请日:2006-01-24

    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。

    Apparatus for measuring specific absorption rate of radio communication apparatus
    49.
    发明授权
    Apparatus for measuring specific absorption rate of radio communication apparatus 有权
    用于测量无线电通信装置的比吸收率的装置

    公开(公告)号:US07268564B2

    公开(公告)日:2007-09-11

    申请号:US10784928

    申请日:2004-02-25

    IPC分类号: G01R29/08 H01Q17/00

    CPC分类号: G01R29/0857 G01R29/0878

    摘要: In an apparatus for measuring a specific absorption rate (SAR), a first near magnetic field distribution of a radio wave radiated from an array antenna of a reference antenna including a plurality of minute antennas is measured, and an SAR distribution with respect to the radio wave radiated from the array antenna is measured with a predetermined phantom. Then a distribution of a transformation coefficient α is calculated by dividing the measured SAR distribution by a square of the measured first near magnetic field distribution, a second near magnetic field distribution of a radio wave radiated from a measured radio communication apparatus is measured, and an SAR distribution with respect to the radio wave radiated from the radio communication apparatus is calculated by multiplying a square of the measured second near magnetic field distribution by the calculated distribution of the transformation coefficient α.

    摘要翻译: 在用于测量比吸收率(SAR)的装置中,测量从包括多个分天线的参考天线的阵列天线辐射的无线电波的第一近场磁场分布,并且相对于无线电的SAR分布 用预定的体模测量从阵列天线辐射的波。 然后,通过将测得的SAR分布除以被测量的第一近场磁场分布的平方来计算变换系数α的分布,测量从测量的无线电通信装置辐射的无线电波的第二近场磁场分布,并且 通过将测量的第二近场磁场分布的平方乘以所计算的变换系数α的分布来计算相对于从无线电通信装置辐射的无线电波的SAR分布。

    Antenna matching apparatus
    50.
    发明申请
    Antenna matching apparatus 审中-公开
    天线匹配装置

    公开(公告)号:US20070010217A1

    公开(公告)日:2007-01-11

    申请号:US10567824

    申请日:2004-08-12

    IPC分类号: H04B1/04

    CPC分类号: H01Q1/245 H04B1/0458 H04B1/18

    摘要: An antenna matching apparatus capable of eliminating impedance mismatching produced when the antenna element is placed close to the human body in a short time and reducing power loss due to impedance mismatching. This apparatus connects variable capacitance capacitors VC1 and VC2 for impedance adjustment to transmission antenna element TA1, connects variable capacitance capacitors VC3 and VC4 to reception antenna element RA1 respectively, provides beforehand capacitance values of respective variable capacitance capacitors which are impedance matched in a table in a one-to-one correspondence with the distances between the antenna elements and human body and stores the table in storage section (106). The apparatus completes adaptive control processing for any one of transmission antenna element TA1 and reception antenna element RA1, reads other capacitance values corresponding to the capacitance value at that moment from the table and performs adaptive control processing on other antenna elements using the read values as initial values.

    摘要翻译: 一种天线匹配装置,其能够消除当天线元件在短时间内靠近人体放置时产生的阻抗失配,并且减少由于阻抗失配引起的功率损耗。 该装置将用于阻抗调整的可变电容电容器VC 1和VC 2连接到发送天线元件TA 1,分别将可变电容电容器VC 3和VC 4连接到接收天线元件RA 1,预先提供作为阻抗的各个可变电容电容器的电容值 以与天线元件和人体之间的距离一一对应的方式在表格中匹配,并将该表存储在存储部分(106)中。 该装置完成发射天线元件TA 1和接收天线元件RA 1中的任何一个的自适应控制处理,从表中读取与该时刻的电容值对应的其他电容值,并使用读出值对其他天线元件进行自适应控制处理 作为初始值。