High strength optical fiber splice
    31.
    发明授权
    High strength optical fiber splice 失效
    高强度光纤接头

    公开(公告)号:US4954152A

    公开(公告)日:1990-09-04

    申请号:US286447

    申请日:1988-12-19

    申请人: Hui-Pin Hsu Soon Jang

    发明人: Hui-Pin Hsu Soon Jang

    摘要: Two optical fibers are spliced together to form a single spliced optical fiber. The spliced region is uncontaminated by impurities, and has substantially no loss of optical transmission or mechanical strength as compared to the other regions of the fibers. Splicing is accomplished by removal of the buffer coating, if any, cleaving of the fibers to be spliced to form facing splicing surfaces, careful precleaning of the cleaved fibers in the region adjacent the splicing surfaces, aligning the fibers using optical transmission as the alignment criterion, fusing the fibers together by preheating the region to be spliced, fusing the region, postannealing the spliced region, carefully postcleaning the spliced region, and recoating the spliced region with a UV curable polymer buffer material, if desired. The heating of the fibers to accomplish the fusion is desirably accomplished by a laser such as a carbon dioxide laser.

    摘要翻译: 将两根光纤拼接在一起以形成单个拼接光纤。 接合区域不被杂质污染,并且与纤维的其它区域相比基本上不损失光学透射率或机械强度。 通过去除待接合的纤维的缓冲涂层(如果有的话)裂开以形成面对的拼接表面来实现接合,在与拼接表面相邻的区域中仔细地预清洁切割的纤维,使用光学传输来对准纤维作为对准标准 通过预热待拼接的区域,将区域熔合,对接合区域进行退火处理,小心地将拼接区域清洁并且如果需要用UV固化的聚合物缓冲材料重新涂覆接合区域来将纤维熔合在一起。 纤维的加热以完成熔化期望通过诸如二氧化碳激光器的激光来实现。

    Metal contact RF MEMS single pole double throw latching switch
    32.
    发明授权
    Metal contact RF MEMS single pole double throw latching switch 失效
    金属接触RF MEMS单刀双掷闭锁开关

    公开(公告)号:US07629194B1

    公开(公告)日:2009-12-08

    申请号:US11845602

    申请日:2007-08-27

    IPC分类号: H01L21/00

    摘要: Apparatus for a micro-electro-mechanical switch that provides single pole, double throw switching action. The switch has two input lines and two output lines. The switch has a seesaw cantilever arm with contacts at each end that electrically connect the input lines with the output lines. The cantilever arm is latched into position by frictional forces between structures on the cantilever arm and structures on the substrate in which the cantilever arm is disposed. The state of the switch is changed by applying an electrostatic force at one end of the cantilever arm to overcome the mechanical force holding the other end of the cantilever arm in place.

    摘要翻译: 用于微机电开关的装置,其提供单极双掷切换动作。 开关有两条输入线和两条输出线。 开关具有跷跷板悬臂,每端具有触点,将输入线与输出线电连接。 悬臂由于悬臂上的结构与设置有悬臂的基板上的结构之间的摩擦力而被锁定到位。 通过在悬臂的一端施加静电力来克服将悬臂的另一端保持就位的机械力来改变开关的状态。

    Control system and method for diversity antenna system
    33.
    发明授权
    Control system and method for diversity antenna system 失效
    分集天线系统的控制系统和方法

    公开(公告)号:US07546146B2

    公开(公告)日:2009-06-09

    申请号:US11199809

    申请日:2005-08-09

    IPC分类号: H04B7/185 H04W4/00

    CPC分类号: H04B7/0814

    摘要: A control system and method for controlling switching between and among multiple antennas in a diversity antenna system comprising a radio head unit associated with a radio receiver; two or more antennas, either located in separate antenna modules or co-located in the same antenna module; a switch circuit; and a single cable. Control signals for controlling switching are provided as changes in a DC power supply signal carried on the single cable. In the case of multiple antenna modules, the radio head unit and the antenna modules are connected by the single cable using a daisy-chain architecture.

    摘要翻译: 一种用于控制分集天线系统中的多个天线之间和之间的切换的控制系统和方法,包括与无线电接收机相关联的无线电头单元; 两个或更多个天线,位于单独的天线模块中或共同位于相同的天线模块中; 开关电路; 和单根电缆。 作为用于控制切换的控制信号被提供为在单个电缆上承载的直流电源信号的变化。 在多个天线模块的情况下,无线电头单元和天线模块通过使用菊花链架构的单根电缆连接。

    Dual Band Stacked Patch Antenna
    34.
    发明申请
    Dual Band Stacked Patch Antenna 审中-公开
    双频带堆叠贴片天线

    公开(公告)号:US20090058731A1

    公开(公告)日:2009-03-05

    申请号:US11847372

    申请日:2007-08-30

    IPC分类号: H01Q9/04

    CPC分类号: H01Q9/0414 H01Q5/378

    摘要: One or more of the embodiments of a dual band stacked patch antenna described herein employ an integrated arrangement of a global positioning system (GPS) antenna and a satellite digital audio radio service (SDARS) antenna. The dual band antenna receives right hand circularly polarized GPS signals in a first frequency band, left hand circularly polarized SDARS signals in a second frequency band, and vertical linear polarized SDARS signals in the second band. The dual band antenna includes a ground plane element, an upper radiating element (which is primarily utilized to receive SDARS signals), dielectric material between the ground plane element and the upper radiating element, and a lower radiating element (which is primarily utilized to receive GPS signals) surrounded by the dielectric material. The dual band antenna uses only one conductive signal feed to receive both GPS and SDARS signals.

    摘要翻译: 本文描述的双频带堆叠贴片天线的一个或多个实施例采用全球定位系统(GPS)天线和卫星数字音频无线电服务(SDARS)天线的集成布置。 双频天线接收第一频带中的右手圆偏振GPS信号,第二频带中的左旋圆偏振SDARS信号和第二频带中的垂直线偏振SDARS信号。 双频带天线包括接地平面元件,上辐射元件(其主要用于接收SDARS信号),接地平面元件和上辐射元件之间的介电材料,以及下辐射元件(其主要用于接收 GPS信号)被电介质材料包围。 双频天线只使用一个导通信号馈送来接收GPS和SDARS信号。

    Method for improving the efficiency of transparent thin film antennas and antennas made by such method
    35.
    发明授权
    Method for improving the efficiency of transparent thin film antennas and antennas made by such method 有权
    通过这种方法提高透明薄膜天线和天线的效率的方法

    公开(公告)号:US07427961B2

    公开(公告)日:2008-09-23

    申请号:US11832652

    申请日:2007-08-02

    IPC分类号: H01Q1/32

    CPC分类号: H01Q1/1271 H01Q9/40 H01Q13/10

    摘要: A method for improving the efficiency of antennas having transparent thin-film conductive surfaces, and antennas improved by the method are disclosed. For a selected frequency of antenna operation, values for surface current density in areas distributed over the surface of the thin-film are determined. Regions of the surface containing areas having concentrated current flow are identified based upon the determined values of current density. Antenna efficiency is improved by increasing conductivity in areas of the thin-film surface found to have concentrated current flow. The method enables the improvement of the efficiency of antennas having transparent thin-film conducting surfaces, without unnecessarily obstructing the optical view through the thin-film surfaces of the antennas.

    摘要翻译: 公开了一种用于提高具有透明薄膜导电表面的天线的效率的方法和通过该方法改进的天线。 对于天线操作的选定频率,确定分布在薄膜表面上的区域中的表面电流密度值。 基于确定的电流密度值来识别包含具有集中电流的区域的表面区域。 通过增加发现具有集中的电流流动的薄膜表面的区域中的导电性来提高天线效率。 该方法能够提高具有透明薄膜导电表面的天线的效率,而不会不必要地阻碍通过天线的薄膜表面的光学视图。

    System and method for improving received signal strength for an in-vehicle wireless communication system
    36.
    发明授权
    System and method for improving received signal strength for an in-vehicle wireless communication system 失效
    用于改善车载无线通信系统的接收信号强度的系统和方法

    公开(公告)号:US07382239B2

    公开(公告)日:2008-06-03

    申请号:US11209538

    申请日:2005-08-23

    IPC分类号: B60C23/00

    摘要: An onboard wireless communication system for a vehicle, such as a tire pressure monitoring system (“TPMS”) is disclosed. The TPMS includes wheel-mounted radio frequency (“RF”) sensor/transmitters that transmit RF signals conveying tire pressure information, at least one RF relay element, and an RF receiver coupled to a TPMS processor. The RF relay element(s) relay the RF signals from the sensor/transmitters to the RF receiver to reduce the negative effect of electromagnetic field scattering caused by conductive parts of the vehicle.

    摘要翻译: 公开了一种用于车辆的车载无线通信系统,例如轮胎压力监测系统(“TPMS”)。 TPMS包括传送RF信号传送轮胎压力信息的轮式射频(“RF”)传感器/发射器,至少一个RF中继元件和耦合到TPMS处理器的RF接收器。 RF继电器元件将来自传感器/发射器的RF信号中继到RF接收器,以减少由车辆的导电部件引起的电磁场散射的负面影响。

    Multi-beam antenna with shared dielectric lens
    37.
    发明申请
    Multi-beam antenna with shared dielectric lens 失效
    具有共用介质透镜的多光束天线

    公开(公告)号:US20070296640A1

    公开(公告)日:2007-12-27

    申请号:US11685812

    申请日:2007-03-14

    IPC分类号: H01Q19/06

    CPC分类号: H01Q25/007 H01Q19/062

    摘要: An integrated multi-beam antenna with a shared dielectric lens is disclosed. The antenna is formed by positioning the feed apertures of a plurality of waveguide feeds at positions located on the surface of the shared dielectric lens. The angular direction and shape of radiation beams produced by the waveguide feeds are determined by the physical and dielectric characteristics of the lens, the location of feed apertures of the waveguide feeds on the surface of the lens, and the frequency of electromagnetic energy propagating in the waveguide feeds. The principles of the invention are applied to realize an inexpensive, integrated multi-feed antenna adapted to provide desired angular areas of coverage for both a long range and short range radar in an automotive radar safety system.

    摘要翻译: 公开了一种具有共用介质透镜的集成多光束天线。 天线通过将多个波导馈送的馈电孔定位在位于共享电介质透镜的表面上的位置而形成。 由波导进给产生的辐射束的角度方向和形状由透镜的物理和介电特性,波导进料在透镜表面上的进给孔的位置以及在透镜中传播的电磁能的频率决定 波导馈线 本发明的原理被应用于实现便宜的集成多馈电天线,其适用于为汽车雷达安全系统中的远程和短距离雷达提供期望的覆盖范围。

    Anisotropic frequency selective ground plane for orthogonal pattern control of windshield antenna
    38.
    发明申请
    Anisotropic frequency selective ground plane for orthogonal pattern control of windshield antenna 审中-公开
    用于挡风玻璃天线正交模式控制的各向异性频率选择接地层

    公开(公告)号:US20070273608A1

    公开(公告)日:2007-11-29

    申请号:US11440498

    申请日:2006-05-25

    IPC分类号: H01Q15/02

    CPC分类号: H01Q1/1271 H01Q15/0013

    摘要: An anisotropic reactive frequency selective surface (FSS) ground plane for controlling the beam pattern of an antenna. More specifically, the ground plane comprises a plurality of FSS unit cells arranged in an elongated shape and operable to control the beam pattern of the antenna in at least two orthogonal directions. The ground plane may be incorporated into a system including a vehicle windshield and the antenna, and is mounted at, or embedded in, a top-center portion of the windshield, substantially centered on the antenna. In this system, the orthogonal directions include a first direction that is substantially parallel to a road surface on which the vehicle travels, and a second direction that is substantially perpendicular to the first direction and that grazes a sideward surface of the windshield

    摘要翻译: 用于控制天线的波束图案的各向异性反应频率选择表面(FSS)接地平面。 更具体地,接地平面包括布置成细长形状的多个FSS单位单元,并可操作以在至少两个正交方向上控制天线的波束图案。 接地平面可以结合到包括车辆挡风玻璃和天线的系统中,并且被安装在挡风玻璃的顶部中心部分处或嵌入在基本上位于天线上的中心部分中。 在该系统中,正交方向包括基本上平行于车辆行驶的路面的第一方向和基本上垂直于第一方向的第二方向,并且掠过挡风玻璃的侧面

    Method for improving the efficiency of transparent thin film antennas and antennas made by such method
    39.
    发明授权
    Method for improving the efficiency of transparent thin film antennas and antennas made by such method 有权
    通过这种方法提高透明薄膜天线和天线的效率的方法

    公开(公告)号:US07289073B2

    公开(公告)日:2007-10-30

    申请号:US11208211

    申请日:2005-08-19

    IPC分类号: H01Q1/32

    CPC分类号: H01Q1/1271 H01Q9/40 H01Q13/10

    摘要: A method for improving the efficiency of antennas having transparent thin-film conductive surfaces, and antennas improved by the method are disclosed. For a selected frequency of antenna operation, values for surface current density in areas distributed over the surface of the thin-film are determined. Regions of the surface containing areas having concentrated current flow are identified based upon the determined values of current density. Antenna efficiency is improved by increasing conductivity in areas of the thin-film surface found to have concentrated current flow. The method enables the improvement of the efficiency of antennas having transparent thin-film conducting surfaces, without unnecessarily obstructing the optical view through the thin-film surfaces of the antennas.

    摘要翻译: 公开了一种用于提高具有透明薄膜导电表面的天线的效率的方法和通过该方法改进的天线。 对于天线操作的选定频率,确定分布在薄膜表面上的区域中的表面电流密度值。 基于确定的电流密度值来识别包含具有集中电流的区域的表面区域。 通过增加发现具有集中的电流流动的薄膜表面的区域中的导电性来提高天线效率。 该方法能够提高具有透明薄膜导电表面的天线的效率,而不会不必要地阻碍通过天线的薄膜表面的光学视图。

    Method for fabricating antenna structures having adjustable radiation characteristics
    40.
    发明申请
    Method for fabricating antenna structures having adjustable radiation characteristics 失效
    制造具有可调辐射特性的天线结构的方法

    公开(公告)号:US20070159395A1

    公开(公告)日:2007-07-12

    申请号:US11326881

    申请日:2006-01-06

    IPC分类号: H01Q1/38

    CPC分类号: H01Q9/30 H01Q15/0013

    摘要: The radiation properties and wave guiding properties of frequency selective surfaces are used in conjunction with closely spaced antenna elements to fabricate antenna structures having adjustable radiation characteristics. The direction, magnitude, and polarization of radiation patterns for such antenna structures can be adjusted by varying the texture or patterning of layers of conducting material forming the frequency selective surfaces. The invention enables the fabrication of low profile antenna structures that can easily be conformed or integrated into complex surfaces without sacrificing antenna performance.

    摘要翻译: 频率选择表面的辐射性质和波导特性与紧密间隔的天线元件结合使用,以制造具有可调辐射特性的天线结构。 可以通过改变形成频率选择表面的导电材料的层的纹理或图案来调节这种天线结构的辐射图案的方向,幅度和极化。 本发明能够制造可以容易地符合或集成到复杂表面中的低轮廓天线结构,而不牺牲天线性能。