Antenna-coupled metal-insulator-metal rectifier
    24.
    发明授权
    Antenna-coupled metal-insulator-metal rectifier 有权
    天线耦合金属绝缘子金属整流器

    公开(公告)号:US09413063B1

    公开(公告)日:2016-08-09

    申请号:US14740588

    申请日:2015-06-16

    CPC classification number: C23C8/80 C23C8/02 C23C8/36

    Abstract: The use of rectennas, or antenna-coupled rectifiers, using metal-insulator-metal tunnel diodes as rectifiers for energy conversion has been explored with more fervor recently, given the advances in nanotechnology fabrication and increased resolution of features. Some have made these devices from symmetric metals (e.g. Ni—NiO—Ni) and asymmetric metals (e.g. Al—AlOx/Pt), and have used deposited oxides as well as native oxides. One key to obtaining a highly asymmetric device with efficient current generation needed for high conversion efficiency is to instead use dissimilar metals and a thin reproducible oxide. The described method allows for a thin, reproducible native oxide of nickel be integrated with any antenna metal to overcome oxide surface roughness problems that typically hamper the practicality of these devices.

    Abstract translation: 鉴于纳米技术制造的进步以及特征分辨率的提高,最近更多地研究了使用金属绝缘体金属隧道二极管作为能量转换整流器的直角天线或天线耦合整流器。 一些使这些器件由对称金属(例如Ni-NiO-Ni)和不对称金属(例如Al-AlOx / Pt)制成,并且已经使用沉积的氧化物以及天然氧化物。 获得具有高转换效率所需的高效电流产生的高度不对称的器件的一个关键在于使用不同的金属和薄的可再生氧化物。 所描述的方法允许将镍的薄的可再现的天然氧化物与任何天线金属集成以克服通常妨碍这些器件的实用性的氧化物表面粗糙度问题。

    Travelling wave antenna feed structures
    26.
    发明授权
    Travelling wave antenna feed structures 有权
    行波天线馈线结构

    公开(公告)号:US09166301B2

    公开(公告)日:2015-10-20

    申请号:US14193072

    申请日:2014-02-28

    Abstract: Techniques for implementing series-fed antenna arrays with a variable dielectric waveguide. In one implementation, coupling elements with optional controlled phase shifters are placed adjacent each radiating element of the array. To avoid frequency sensitivity of the resulting array, one or more waveguides have a variable propagation constant. The variable waveguide may use certain materials exhibiting this phenomenon, or may have configurable gaps between layers. Plated-through holes and pins can control the gaps; and/or a 2-D circular or a rectangular travelling wave array of scattering elements can be used as well.

    Abstract translation: 用可变介质波导实现串联馈电天线阵列的技术。 在一个实现中,与可选的受控移相器的耦合元件放置在与阵列的每个辐射元件相邻的位置。 为了避免所得阵列的频率灵敏度,一个或多个波导具有可变的传播常数。 可变波导可以使用表现出这种现象的某些材料,或者可以在层之间具有可配置的间隙。 电镀通孔和引脚可以控制间隙; 和/或二维圆形或散射元件的矩形行波阵列也可以使用。

    Spiral surface electromagnetic wave dispersive delay line
    27.
    发明授权
    Spiral surface electromagnetic wave dispersive delay line 有权
    螺旋表面电磁波色散延迟线

    公开(公告)号:US09059488B2

    公开(公告)日:2015-06-16

    申请号:US14207948

    申请日:2014-03-13

    CPC classification number: H01P9/00 H01P1/18

    Abstract: Dispersive properties of a linear dispersive delay line are retained in a spiral configuration by constraining the radius of curvature depending on a desired propagation mode. The compact form factor spiral can be either a continuous spiral or a piecewise linear approximation. The spiral comprises a highly dielectric waveguide such as titanium dioxide or barium tetratitanate. Preferably, a spacer with a low dielectric constant and a microstrip are disposed on the top surface. The microstrip prevents attenuation of low frequencies, thereby increasing the operating frequency range. A second dielectric spacer and a second microstrip can be deposited on the bottom surface of the waveguide. Alternatively, the bottom surface of the waveguide can face a ground plane. The waveguide can be fed by horns or half-horns.

    Abstract translation: 线性色散延迟线的分散特性通过根据期望的传播模式约束曲率半径而保持在螺旋形结构中。 紧凑形状因子螺旋可以是连续螺旋或分段线性近似。 该螺旋包括高介电波导如二氧化钛或四钛酸钡。 优选地,具有低介电常数的间隔物和微带设置在顶表面上。 微带防止低频衰减,从而增加工作频率范围。 可以在波导的底表面上沉积第二介质间隔物和第二微带。 或者,波导的底表面可以面对接地平面。 波导可以由喇叭或半角进给。

    MONOLITHIC BROADBAND ENERGY COLLECTOR WITH DICHROIC FILTERS AND MIRRORS EMBEDDED IN WAVEGUIDE
    28.
    发明申请
    MONOLITHIC BROADBAND ENERGY COLLECTOR WITH DICHROIC FILTERS AND MIRRORS EMBEDDED IN WAVEGUIDE 审中-公开
    具有双色滤光片和嵌入在波纹管中的镜子的单声道宽带收发器

    公开(公告)号:US20150107671A1

    公开(公告)日:2015-04-23

    申请号:US14533654

    申请日:2014-11-05

    Abstract: A solar energy collector includes a planar waveguide formed of multiple material layers having at least two different dielectric constants. Two or more dichroic filters disposed within the waveguide core, and two or more minors are also disposed within the waveguide core. At least one optical to electrical detector positioned in alignment with each of the dichroic filters, and at least one optical to electrical detector is aligned with each of the mirrors. The dichroic filter may be formed from a plurality of material layers.

    Abstract translation: 太阳能收集器包括由具有至少两个不同介电常数的多个材料层形成的平面波导。 布置在波导芯内的两个或更多个二向色滤光片以及两个或更多个未成形光纤也布置在波导芯内。 定位成与每个二向色滤光器对准的至少一个光电检测器,以及至少一个光电检测器与每个反射镜对准。 二向色滤光器可以由多个材料层形成。

    Low power stimulated emission nuclear quadrupole resonance detection at multiple reference power levels
    29.
    发明授权
    Low power stimulated emission nuclear quadrupole resonance detection at multiple reference power levels 有权
    在多个参考功率电平下的低功率受激发射核四极共振检测

    公开(公告)号:US08912788B2

    公开(公告)日:2014-12-16

    申请号:US13901765

    申请日:2013-05-24

    CPC classification number: G01V3/14 G01N24/084 G01R33/441

    Abstract: System and methods for detecting substances such as explosives via the nuclear quadrupole resonance effect. We observe that the nuclear quadrupole resonances of explosives located within a cavity portal involve continuous Rabi transitions which are nonlinear processes since stimulated emission occurs. In other words, where there are no resonances caused by the presence of an explosive, high average power and low average power measurements should be identical. However, when resonances are stimulated by the system, the difference between these two conditions can be compared to determine a correction to measurements made when a person located in the cavity has explosive material on their person, without the need for separate empty portal or elaborate calibration procedures.

    Abstract translation: 通过核四极共振效应检测炸药等物质的系统和方法。 我们观察到,位于腔室入口内的爆炸物的核四极共振涉及连续的Rabi转变,这是自受激发射以来的非线性过程。 换句话说,如果不存在由爆炸物引起的共振,高平均功率和低平均功率测量值应相同。 然而,当系统刺激共振时,可以比较这两个条件之间的差异,以确定当位于空腔中的人员具有人体上的爆炸性材料时进行的测量的校正,而不需要单独的空门或精细校准 程序。

    COMPACT CYLINDRICALLY SYMMETRIC UHF SATCOM ANTENNA
    30.
    发明申请
    COMPACT CYLINDRICALLY SYMMETRIC UHF SATCOM ANTENNA 有权
    紧凑的圆柱体对称UHF SATCOM天线

    公开(公告)号:US20140176385A1

    公开(公告)日:2014-06-26

    申请号:US14102717

    申请日:2013-12-11

    CPC classification number: H01Q1/36 H01Q13/12 H01Q21/205 H01Q21/24 H01Q25/02

    Abstract: A cylindrically symmetric satellite antenna that provides directional and omnidirectional operating modes in a compact form factor. Feed points located at the top of the cylindrical structure provide increased platform isolation. Combining networks, disposed below or within the cylindrical structure, may be replaced with inexpensive baluns composed of coaxial line sections.

    Abstract translation: 一种圆柱对称的卫星天线,以紧凑的形式提供方向性和全方位的操作模式。 位于圆柱形结构顶部的进料点提供增加的平台隔离。 布置在圆柱形结构下方或内部的组合网络可以用由同轴线路部分组成的廉价的不平衡变换器代替。

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