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11 条记录 (耗时 0.013 秒)

    Compact multi-polarized broadband antenna
    5.
    发明授权
    Compact multi-polarized broadband antenna 失效
    紧凑型多极化宽带天线

    公开(公告)号：US5212494A

    公开(公告)日：1993-05-18

    申请号：US608606

    申请日：1990-10-31

    申请人： Dean A. Hofer ,  Oren B. Kesler ,  Lowell L. Loyet

    发明人： Dean A. Hofer ,  Oren B. Kesler ,  Lowell L. Loyet

    IPC分类号： H01Q9/27 ,  H01Q11/10

    CPC分类号： H01Q11/105 ,  H01Q9/27

    摘要： The disclosure relates to a multipolarized broad band antenna and antenna system wherein the antenna structure is formed on a substrate, the antenna structure on the substrate including a central feedpoint, a first antenna element having a plurality of regions composed of first plural interconnected concentric sectors of circles of diminishing radius extending to the feedpoint, and a second antenna element having a plurality of regions composed of second plural interconnected concentric sectors of circles of diminishing radius extending to the feedpoint, the second plural concentric sectors being interleaved with the first plural concentric sectors.

    摘要翻译： 本发明涉及多极化宽带天线和天线系统，其中天线结构形成在基板上，基板上的天线结构包括中心馈电点，第一天线元件具有由第一多个相互连接的同心扇区 延伸到馈电点的半径减小的圆圈，以及具有多个区域的第二天线元件，所述多个区域由延伸到所述馈电点的减小的半径的第二多个相互连接的同心圆心扇形组成，所述第二多个同心扇区与所述第一多个同心扇区交错。

    Direction finding apparatus
    6.
    发明授权
    Direction finding apparatus 有权
    测向仪

    公开(公告)号：US6127974A

    公开(公告)日：2000-10-03

    申请号：US163230

    申请日：1998-09-29

    申请人： Oren B. Kesler

    发明人： Oren B. Kesler

    IPC分类号： G01S3/04 ,  G01S3/46 ,  G01S3/74 ,  G01S5/02

    CPC分类号： G01S3/74 ,  G01S3/46 ,  G01S3/043

    摘要： An efficient monopulse direction finding technique is based on the best algorithm in the least squares sense for a given antenna configuration. The algorithm simultaneously uses complex voltage data from all of the antenna ports, i.e., all of the available data received. No a priori emitter polarization information is assumed. Only a two dimensional search for the performance index minimum is needed to find the solution. The method is extended to N emitters with a search in only 2N space for the N emitter angles.

    摘要翻译： 一种有效的单脉冲测向技术是基于给定天线配置的最小二乘法中的最佳算法。 该算法同时使用来自所有天线端口的复合电压数据，即接收到的所有可用数据。 不存在先验发射极偏振信息。 只需要对性能指标最小的二维搜索来找到解决方案。 该方法扩展到N个发射器，仅在N个发射器角度的2N个空间中搜索。

    Low cost thin film magnetodielectric material
    7.
    发明授权
    Low cost thin film magnetodielectric material 失效
    低成本薄膜电磁材料

    公开(公告)号：US6063511A

    公开(公告)日：2000-05-16

    申请号：US816095

    申请日：1997-03-14

    申请人： Donald L. Purinton ,  Oren B. Kesler

    发明人： Donald L. Purinton ,  Oren B. Kesler

    IPC分类号： H01F1/153 ,  H01F1/26 ,  H01F1/37 ,  H01F41/16 ,  H05K9/00 ,  B32B9/00 ,  B05D5/12 ,  G11B5/66

    CPC分类号： H05K9/0083 ,  H01F1/15375 ,  H01F1/26 ,  H01F1/37 ,  H01F41/16

    摘要： A device and method of making the device for regulating electromagnetic radiations in a predetermined frequency range, which comprises a substrate and a coating mixture on a surface of the substrate. The coating mixture is provided by mixing together: (a) a plurality of flakes of a magnetic or ferrite material having substantial length and width dimensions relative to their thickness, the thickness of substantially all of the flakes being less than the skin depth of all frequencies in the predetermined frequency range, (b) at least one surfactant, (c)) a vaporizable electrically insulating material and (d) a solvent. The mixture is sprayed onto the surface of the substrate, either with or without a magnetic field at the surface, and the solvent is removed to retain the flakes on the substrate spaced from each other by the electrically insulating material and disposed substantially parallel to the portion of the plane of the surface thereunder. The substrate can be any one of at least an automobile, an aircraft, an electronic enclosure, a portion of a building, a tower causing electromagnetic interference or a location for placement of an antenna. The device is preferably an absorber for electromagnetic radiations, particularly for use on the surfaces of a mobile device such as an automobile, aircraft or personal electronic device. The flakes are any magnetic or ferrite material than can be provided in flake form in the thickness range required.

    摘要翻译： 一种制造用于在预定频率范围内调节电磁辐射的装置的装置和方法，该装置和方法包括在基板的表面上的基板和涂层混合物。 涂料混合物通过混合在一起提供：（a）多个磁性或铁素体材料片，其相对于它们的厚度具有相当大的长度和宽度尺寸，基本上所有薄片的厚度小于所有频率的皮肤深度 在预定频率范围内，（b）至少一种表面活性剂，（c））可蒸发的电绝缘材料和（d）溶剂。 将混合物喷涂到基材的表面上，在表面具有或不具有磁场，并且去除溶剂以将薄片保留在基板上，通过电绝缘材料彼此间隔开并且基本平行于该部分 的表面的平面。 基板可以是至少汽车，飞行器，电子机箱，建筑物的一部分，引起电磁干扰的塔架或用于放置天线的位置中的任何一个。 该装置优选地是用于电磁辐射的吸收器，特别是用于诸如汽车，飞行器或个人电子装置的移动装置的表面上。 薄片是在所需厚度范围内可以以薄片形式提供的任何磁性或铁素体材料。

    GaAs monolithic waveguide switch
    8.
    发明授权
    GaAs monolithic waveguide switch 失效
    GaAs单片波导开关

    公开(公告)号：US5119052A

    公开(公告)日：1992-06-02

    申请号：US601557

    申请日：1990-10-23

    申请人： Larry C. Witkowski ,  Hua Q. Tserng ,  Robert C. Voges ,  Charles M. Rhoads ,  Oren B. Kesler

    发明人： Larry C. Witkowski ,  Hua Q. Tserng ,  Robert C. Voges ,  Charles M. Rhoads ,  Oren B. Kesler

    IPC分类号： H01P1/15 ,  H01P3/02 ,  H03K17/687

    CPC分类号： H01P1/15

    摘要： A GaAs monolithic waveguide switch and system for low power consumption and high frequency switching wherein a single GaAs chip is flip-chip mounted onto a waveguide slot and inserted between interconnecting waveguides to provide single pole single throw switching. The GaAs chip includes an array of MESFETs along with connecting electrodes configured to provide low loss in the biased state and high loss in the unbiased state. The use of a single GaAs monolithic chip provides improved RF performance and manufacturability over discrete devices and provides lower power consumption as compared with silicon PIN diode waveguide switches.

    摘要翻译： 一种用于低功耗和高频开关的GaAs单片波导开关和系统，其中单个GaAs芯片倒装芯片安装在波导槽上并插入互连波导之间，以提供单极单掷切换。 GaAs芯片包括MESFET阵列以及连接电极，连接电极被配置为在偏置状态下提供低损耗并且在无偏置状态下具有高损耗。 与硅PIN二极管波导开关相比，使用单个GaAs单片芯片提供了超过分立器件的RF性能和可制造性，并提供了更低的功耗。