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9 条记录 (耗时 0.044 秒)

    Internal thermal isolation layer for array antenna
    1.
    发明授权
    Internal thermal isolation layer for array antenna 失效
    阵列天线的内部热隔离层

    公开(公告)号：US5455594A

    公开(公告)日：1995-10-03

    申请号：US288659

    申请日：1994-08-10

    申请人： Raymond R. Blasing ,  Edwin F. Johnson ,  Douglas G. Lockie ,  Cliff Mohwinkel ,  Barry Whalen ,  Richard S. Withers

    发明人： Raymond R. Blasing ,  Edwin F. Johnson ,  Douglas G. Lockie ,  Cliff Mohwinkel ,  Barry Whalen ,  Richard S. Withers

    IPC分类号： H01Q1/36 ,  H01Q1/40 ,  H01Q15/00 ,  H01Q1/38 ,  H01Q15/24

    CPC分类号： H01Q1/40 ,  H01Q1/364 ,  H01Q15/0013

    摘要： An array antenna includes a means of thermally isolating the feed network from the space illuminated by the antenna. Filtering layers are incorporated into the structure between the feed and the radiating patches. These filtering layers are transparent to radiation in the frequency range of operation of the antenna, primarily microwaves and millimeter waves, but reflect much shorter wavelengths such as infrared and visible light. This rejection of short wavelengths results in reduced heating of the feed network and so to a reduced heat load on a cooling system. One preferred embodiment employs the radiation shield to advantage by incorporating superconductive elements in the antenna. These elements can be cooled efficiently enough to be practical due to the rejection of heat by the incorporated filtering layers.

    摘要翻译： 阵列天线包括将馈电网与由天线照射的空间热隔离的装置。 过滤层结合在进料和散热片之间的结构中。 这些滤波层对于天线的操作频率范围（主要是微波和毫米波）而言对于辐射是透明的，但是反射了更短的波长，例如红外和可见光。 这种短波长的抑制导致进料网络的加热减少，从而降低冷却系统上的热负荷。 一个优选实施例通过在天线中引入超导元件来利用辐射屏蔽。 这些元件由于被内置的过滤层的排斥而能够被有效地冷却到实用。

    Dual-sided push-pull amplifier
    5.
    发明授权
    Dual-sided push-pull amplifier 失效

    公开(公告)号：US5491449A

    公开(公告)日：1996-02-13

    申请号：US155030

    申请日：1993-11-19

    申请人： Edwin F. Johnson ,  Douglas G. Lockie ,  Clifford A. Mohwinkel

    发明人： Edwin F. Johnson ,  Douglas G. Lockie ,  Clifford A. Mohwinkel

    IPC分类号： H05K1/18 ,  H01L23/66 ,  H03F3/26 ,  H03F3/60 ,  H03F3/68 ,  H03F3/16

    CPC分类号： H01L23/66 ,  H03F3/602 ,  H01L2223/6644 ,  H01L2924/0002 ,  H01L2924/3011

    摘要： A Dual-Sided Push-Pull Amplifier for providing a high-gain yet low-cost amplifier capable of operating at frequencies extending above 1 GHz is disclosed. The present invention may be used in any application in which low cost amplification may be desired, including transmitters, antenna arrays, radars, light wave modulators, mixers, local oscillators, driver amplifiers and microwave ovens. One of the preferred embodiments of the invention (10d/10e) utilizes two pairs of field effect transistors (FETs) (22U and 22L & 24U and 24L) mounted in registration on both faces (12a & 12b) of a dual-sided dielectric substrate (12). The sources (22US and 22LS & 24US and 24US) on both faces of the FETs (22 & 24) are electrically coupled and are located at a minimum distance from their mates on the opposite faces of the substrate (12) to reduce inter-FET source lead inductance. The FETs (22 & 24) are coupled to a set of conductors (16a, 16b, 16c & 16d) which are formed on the substrate (12). These conductors (16a, 16b, 16c & 16d) are deployed in a substantially symmetric pattern about the active devices (14d & 14e) as opposing pairs in registration across the substrate (12), and are located in positions that are substantially equidistant from the active devices (14d & 14e). The conductors (16a, 16b, 16c & 16d) are arranged to allow an equal and opposed input signal (i) to flow through conductors 16a and 16b. An amplified signal gi (gain x input current) is produced in conductors 16c and 16d. Electrically conductive vias (17) may extend between faces (12a) and (12b) to facilitate electrical connections between the sources of the active devices (14d & 14e) on either side of the substrate (12). Power is supplied to the active devices (14) through terminals (18). A miniature heat pipe (19) may be formed within substrate (12) and contains a liquid, gas or solid material that is capable of conducting unwanted heat away from the active devices (14d & 14e) or for temporarily storing unwanted heat from the active devices.

    Wireless point to multi-point communication apparatus and method
    6.
    发明授权
    Wireless point to multi-point communication apparatus and method 失效
    无线指向多点通信装置和方法

    公开(公告)号：US07006794B1

    公开(公告)日：2006-02-28

    申请号：US09625065

    申请日：2000-07-25

    申请人： Douglas G. Lockie ,  Edward A. Keible ,  Clifford A. Mohwinkel

    发明人： Douglas G. Lockie ,  Edward A. Keible ,  Clifford A. Mohwinkel

    IPC分类号： H04B15/00

    CPC分类号： H04B7/0408 ,  Y02D70/00 ,  Y02D70/444

    摘要： A wireless communication system that provides energy efficient, high bandwidth and low cost wireless communication. In one embodiment, the communication system utilizes a fan out, pencil beam arrangement in which electro-magnetic energy is transmitted from a hub to customer premises equipment (CPE) with a fan or similar antenna and from the CPEs to the hub via pencil beam antennas. The pencil beam antennas provided higher link margin. The hub may include a shared aperture antenna device for receiving pencil beam transmissions from the CPEs. A shared aperture antenna device may also be used for transmission from the hub to the CPEs.

    摘要翻译： 一种提供节能，高带宽和低成本无线通信的无线通信系统。 在一个实施例中，通信系统利用风扇输出，铅笔束布置，其中电磁能量从集线器通过风扇或类似天线从CPE发送到客户端设备（CPE），并且经由笔式波束天线从CPE传输到集线器 。 笔形波束天线提供较高的链路余量。 集线器可以包括用于从CPE接收笔式光束传输的共享孔径天线装置。 共享孔径天线装置也可用于从集线器到CPE的传输。