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1. 发明申请

US20050017919A1 Circularly polarized antenna having improved axial ratio 失效
公开(公告)号：US20050017919A1
公开(公告)日：2005-01-27
申请号：US10628019
申请日：2003-07-25
申请人： Daniel Sievenpiper , James Schaffner , Julio Navarro
发明人： Daniel Sievenpiper , James Schaffner , Julio Navarro
IPC分类号： H01Q1/38 , H01Q15/00 , H01Q15/02 , H01Q19/02
CPC分类号： H01Q19/028 , H01Q15/008
摘要： A circularly polarized antenna system having improved axial ratio is disclosed. The antenna system comprises a circularly-polarized antenna, and a high-impedance buffer surface, surrounding the circularly polarized antenna, and disposed between the circularly polarized antenna and a ground plane. The width of the high-impedance buffer surface between the circularly-polarized antenna and the ground plane is selected to achieve an H-plane radiation pattern substantially identical to an E-plane radiation pattern over a desired scan angle.

2. 发明申请

US20070211403A1 Molded high impedance surface 审中-公开
标题翻译：模压高阻抗表面
公开(公告)号：US20070211403A1
公开(公告)日：2007-09-13
申请号：US11708970
申请日：2007-02-20
申请人： Daniel Sievenpiper , Joseph Pikulski , James Schaffner , Tsung-Yuan Hsu
发明人： Daniel Sievenpiper , Joseph Pikulski , James Schaffner , Tsung-Yuan Hsu
IPC分类号： H01G7/00
CPC分类号： H05K1/162 , H01G4/005 , H01G4/38 , H05K1/144 , H05K3/045 , H05K3/107 , H05K3/3436 , H05K3/426 , H05K2201/041 , H05K2201/09036 , H05K2201/09045 , H05K2201/09118 , H05K2201/09981 , H05K2203/0455
摘要： A high impedance surface and a method of making same. The surface includes a molded structure having a repeating pattern of holes therein and a repeating pattern of sidewall surfaces, the holes penetrating the structure between first and second major surfaces thereof and the sidewall surfaces joining the first major surface. A metal layer is put on said molded structure, the metal layer being in the holes, covering at least a portion of the second major surface, covering the sidewalls and portions of the first major surface to interconnect the sidewalls with other sidewalls via the metal layer on the second major surface and in the holes.
摘要翻译：高阻抗表面及其制造方法。该表面包括具有其中的重复图案的模制结构和侧壁表面的重复图案，该孔贯穿其第一和第二主表面之间的结构以及连接第一主表面的侧壁表面。金属层放置在所述模制结构上，金属层在孔中，覆盖第二主表面的至少一部分，覆盖第一主表面的侧壁和部分，以通过金属层将侧壁与其它侧壁互连在第二个主表面和孔中。

3. 发明申请

US20050035915A1 Phased array antenna 有权
标题翻译：相控阵天线
公开(公告)号：US20050035915A1
公开(公告)日：2005-02-17
申请号：US10239346
申请日：2002-02-06
申请人： Stan Livingston , Jar Lee , James Schaffner , Robert Loo
发明人： Stan Livingston , Jar Lee , James Schaffner , Robert Loo
IPC分类号： H01Q1/42 , H01Q21/00 , H01Q21/06 , H01Q19/06
CPC分类号： H01Q1/422 , H01Q21/0093 , H01Q21/064
摘要： A reconfigurable wide band phased array antenna for generating multiple antenna beams for multiple transmit and receive functions. The antenna array comprises multiple long non-resonant TEM slot antenna apertures with RF MEMS switches disposed within the slots. The RF MEMS switches are positioned directly within the feed lines across the slots to directly control the coupling of RF energy to the slots. Multiple RF MEMS switches are used within each slot, which allows multiple transmit/receive functions and/or multiple frequencies to be supported by each slot. The frequency coverage provided by the slot antenna has a greater than 10:1 frequency range.
摘要翻译：一种用于产生多个发射和接收功能的多个天线波束的可重构宽带相控阵天线。天线阵列包括多个长非谐振TEM缝隙天线孔径，RF MEMS开关设置在槽内。射频MEMS开关直接位于插槽的馈电线内，以直接控制RF能量与插槽的耦合。在每个时隙内使用多个RF MEMS开关，这允许每个时隙支持多个发射/接收功能和/或多个频率。缝隙天线提供的频率覆盖范围大于10：1。

4. 发明授权

US08808600B1 Methods for manufacturing barrier systems having a retained coupling pin 有权
标题翻译：用于制造具有保持的联接销的阻挡系统的方法
公开(公告)号：US08808600B1
公开(公告)日：2014-08-19
申请号：US13436014
申请日：2012-03-30
申请人： Marc E. Christensen , James Schaffner
发明人： Marc E. Christensen , James Schaffner
IPC分类号： B29C45/00 , B29C65/00
CPC分类号： E01F15/10 , E01F13/02 , E01F13/022 , E01F15/086 , F16B21/12 , F16B21/186 , G09F17/00 , Y10T29/49826
摘要： A method of manufacturing a barrier assembly includes: forming a barrier inside a mold using a polymeric material; removing the formed barrier from the mold while the barrier is still warm; inserting an elongated coupler into a passage on the barrier while the barrier is still warm, the coupler including a shaft and a securing member outwardly projecting from the shaft, the passage having a constricting portion, the warm constricting portion of the barrier pliably bending as the securing member passes throughthrough; and allowing the formed barrier to cool and harden, the hardened constricting portion of the barrier preventing or limiting the securing member of the connector from passing back through the constricting portion of the passage.
摘要翻译：制造阻挡组件的方法包括：使用聚合材料在模具内形成阻挡层; 当屏障仍然温暖时，从模具中移除形成的屏障; 当隔离物仍然温暖时，将细长的联接器插入到屏障上的通道中，联接器包括轴和从轴向外突出的固定构件，通道具有收缩部分，阻挡物的热收缩部分柔韧地弯曲为固定件通过; 并且允许形成的阻挡层冷却和硬化，防止或限制连接器的固定构件的屏障的硬化收缩部分不会通过通道的收缩部分。

5. 发明申请

US20060181379A1 Stress bimorph MEMS switches and methods of making same 审中-公开
公开(公告)号：US20060181379A1
公开(公告)日：2006-08-17
申请号：US11399077
申请日：2006-04-05
申请人： Robert Schwartz , Ming Wu , Tsung-Yuan Hsu , Adele Schmitz , Robert Loo , James Schaffner , Gregory Tangonan
发明人： Robert Schwartz , Ming Wu , Tsung-Yuan Hsu , Adele Schmitz , Robert Loo , James Schaffner , Gregory Tangonan
IPC分类号： H01H51/22
CPC分类号： H01H59/0009 , H01G5/18 , H01G5/40 , H01H1/20 , H01H2059/0018 , H01H2059/0072 , H01H2059/0081
摘要： A micro-electromechanical system (MEMS) switch formed on a substrate, the switch comprising a transmission line formed on the substrate, a substrate electrostatic plate formed on the substrate, and an actuating portion. The actuating portion comprises a cantilever anchor formed on the substrate and a cantilevered actuator arm extending from the cantilever anchor. Attraction of the actuator arm toward the substrate brings an electrical contact into engagement with the portions of the transmission line separated by a gap, thus bridging the transmission line gap and closing the circuit. In order to maximize electrical isolation between the transmission line and the electrical contact in an OFF-state while maintaining a low actuation voltage, the actuator arm is bent such that the minimum separation distance between the transmission line and the electrical contact is equal to or greater than the maximum separation distance between the substrate electrostatic plate and arm electrostatic plate.

6. 发明授权

US5909336A Position detection scheme for headerless disk controller 失效
标题翻译：无头磁盘控制器的位置检测方案
公开(公告)号：US5909336A
公开(公告)日：1999-06-01
申请号：US802293
申请日：1997-02-18
申请人： James Schaffner , Dong Cho , Kang Xiao , Mark J. Blair , Joanne Wu , Patrick Conley , Stephen Finch
发明人： James Schaffner , Dong Cho , Kang Xiao , Mark J. Blair , Joanne Wu , Patrick Conley , Stephen Finch
IPC分类号： G11B5/55 , G11B5/596 , G11B21/08
CPC分类号： G11B21/083 , G11B5/5534 , G11B5/5543 , G11B5/59655 , G11B5/59688
摘要： The present invention provides a method and apparatus for providing position detection using a unique binary sequence encoded in indexing bits stored in servo wedges. The present invention generates a unique binary sequence (UBS) code and stores the bits of such a code in the indexing bits of the servo wedges. The bits are read from the servo wedges and used to provide unique identification of head position. Each servo wedge and each data field can be uniquely identified, even servo wedges and data fields under different heads. The present invention may be used to provide initial position detection, position verification during normal operation, and position verification upon head switching. When used for position verification, the present invention uses a confidence block to determine the confidence level with which the head is believed to be correctly positioned. One or more programmable thresholds may be used to qualify operations such as reading information from a disk, writing information to a disk, or seeking a location on a disk. If these thresholds are not met for the corresponding operations, the initial position detection capability of the present invention may be used to provide position recovery.
摘要翻译：本发明提供一种使用在存储在伺服楔中的索引位中编码的唯一二进制序列来提供位置检测的方法和装置。本发明生成唯一的二进制序列（UBS）码，并将这种码的比特存储在伺服楔的索引位中。这些位从伺服楔中读取，用于提供头位置的唯一识别。每个伺服楔和每个数据场可以被唯一地识别，甚至伺服楔和数据场不同的头。本发明可以用于在头切换时提供初始位置检测，正常操作期间的位置验证和位置验证。当用于位置验证时，本发明使用置信区块来确定头部被认为被正确定位的置信水平。可以使用一个或多个可编程阈值来限定诸如从盘读取信息，将信息写入磁盘或寻找磁盘上的位置等操作。如果对于相应的操作不符合这些阈值，则可以使用本发明的初始位置检测能力来提供位置恢复。

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