Conformal antennas for mitigation of structural blockage
    21.
    发明授权
    Conformal antennas for mitigation of structural blockage 有权
    用于减轻结构性阻塞的保形天线

    公开(公告)号:US08982011B1

    公开(公告)日:2015-03-17

    申请号:US13243006

    申请日:2011-09-23

    IPC分类号: H01Q15/02

    CPC分类号: H01Q15/006 H01Q1/28 H01Q1/528

    摘要: A method of and apparatus for mitigating adverse transmission and/or reception effects that an obstruction would otherwise have upon a RF signal to be transmitted or received, the RF signal being available at a feed point and wherein the obstruction is spaced from the feed point in a direction of desired transmission or reception. An artificial impedance surface is disposed adjacent the feed point and the obstruction, and the artificial impedance surface is designed (i) to have a spatially non-varying impedance function in a constant impedance region at least immediately adjacent the feed point and (ii) to have a non-constant impedance function in one or more regions spaced from the feed point and closer to the obstruction.

    摘要翻译: 一种用于减轻障碍物将要传送或接收RF信号的不利传播和/或接收效应的方法和装置,所述RF信号在馈电点可用,并且其中所述障碍物与所述馈送点间隔开 所需传输或接收的方向。 人造阻抗表面设置在馈电点和障碍物附近,并且设计人造阻抗表面(i)在至少紧邻馈电点的恒定阻抗区域中具有空间不变阻抗函数,以及(ii)至 在与馈电点间隔开并且更靠近障碍物的一个或多个区域中具有非恒定阻抗功能。

    Conformal Surface Wave Feed
    22.
    发明申请
    Conformal Surface Wave Feed 有权
    保形表面波进给

    公开(公告)号:US20130285871A1

    公开(公告)日:2013-10-31

    申请号:US13242102

    申请日:2011-09-23

    IPC分类号: H01Q1/50 H01P5/08

    CPC分类号: H01Q13/20 H01Q13/26

    摘要: A transmission line feed for a surface wave medium having a dielectric substrate with an array of electrically conductive patches formed thereon. The transmission line feed includes a microstrip substrate, the microstrip substrate having a first permittivity which is lower than a second permittivity of the dielectric substrate of the surface wave medium, the microstrip substrate abutting against the dielectric substrate of the surface wave medium; a tapered microstrip disposed on the microstrip substrate, the tapered microstrip tapering from a relatively narrow end to a relatively wide end, the relative wide end terminating where the microstrip substrate abuts against the surface wave substrate; and an adapter for coupling a transmission line to the relatively narrow end of the tapered microstrip.

    摘要翻译: 一种用于表面波介质的传输线馈电,其具有在其上形成有导电片的阵列的电介质基片。 传输线馈送包括微带基片,微带基片的第一介电常数低于表面波介质介电基片的第二介电常数,微带基片与表面波介质的电介质基片相接; 设置在微带基板上的锥形微带,锥形微带从相对较窄的端部逐渐变细到相对宽的端部,相对较宽的端部终止,其中微带基板抵靠表面波基板; 以及用于将传输线耦合到锥形微带的相对较窄端的适配器。

    High speed flywheel
    23.
    发明授权
    High speed flywheel 失效
    高速飞轮

    公开(公告)号:US5816114A

    公开(公告)日:1998-10-06

    申请号:US878501

    申请日:1997-06-18

    摘要: A method of operating a flywheel (10) includes the provision of a central shaft (12) defining an axis of rotation; providing a disk-shaped hub (22) joining drivingly with both the shaft and with a rim portion (34); and which hub portion has a shape when the flywheel is at rest which is of a shallow dihedral geometry. That is, the hub is cone-shaped when the flywheel is at rest. As the rotational speed of the flywheel is increased from the at-rest speed toward and then to a design operating speed for the flywheel, this hub progressively flattens out until it becomes flat and extends radially between the shaft and the hub at the design speed for the flywheel. Thus, the flattening of the hub with increasing rotational speed for the flywheel moves the rim portion axially in response to centrifugal force.

    摘要翻译: 一种操作飞轮(10)的方法包括:设置限定旋转轴线的中心轴(12); 提供与所述轴和边缘部分(34)两者驱动地连接的盘形轮毂(22); 并且当所述飞轮静止时,所述毂部分具有浅二面体几何形状的形状。 也就是说,当飞轮静止时,轮毂是锥形的。 随着飞轮的旋转速度从飞行器的静止速度逐渐增加到设计操作速度,该轮毂逐渐变平直到其变平,并以设计速度在轴和轮毂之间径向延伸 飞轮。 因此,随着用于飞轮的旋转速度的增加,轮毂的扁平化使得边缘部分响应于离心力而轴向地移动。

    Corona source for producing corona discharge and fluid waste treatment
with corona discharge
    24.
    发明授权
    Corona source for producing corona discharge and fluid waste treatment with corona discharge 失效
    用电晕放电产生电晕放电和流体废物处理的电晕源

    公开(公告)号:US5655210A

    公开(公告)日:1997-08-05

    申请号:US455459

    申请日:1995-05-31

    摘要: A corona source suitable for use in vehicle ignition systems uses a conductive coil that receives an RF input at one end and has a corona discharge site at the other end, with a reference electrode capacitively coupled to the coil. The pitch and the length of the coil are selected to produce a corona discharge in response to an RF input signal at a predetermined frequency and voltage, through quarter wavelength resonation. Either the new resonant coil or other corona discharge devices can be used to remediate fluid-borne wastes by initiating and sustaining RF corona discharges within the fluid. The pulses used to initiate the corona discharge preferably have alternating positive and negative components, with high initial voltages on the positive components to initiate the discharge, followed by lower positive voltage levels to sustain the discharge. Unipolar pulses, preferably with progressively decreasing voltage levels, can also be used.

    摘要翻译: 适用于车辆点火系统的电晕源使用在一端接收RF输入并且在另一端具有电晕放电位置的导电线圈,其中参考电极电容耦合到线圈。 选择线圈的间距和长度,以通过四分之一波长谐振在预定频率和电压下响应于RF输入信号产生电晕放电。 新的共振线圈或其他电晕放电装置可用于通过启动和维持流体内的RF电晕放电来修复流体传播的废物。 用于启动电晕放电的脉冲优选具有交替的正和负分量,在正分量上具有高初始电压以开始放电,随后是较低的正电压电平以维持放电。 也可以使用单极脉冲,优选逐渐降低的电压电平。

    Corona discharge ignition system
    25.
    发明授权
    Corona discharge ignition system 失效
    电晕放电点火系统

    公开(公告)号:US5649507A

    公开(公告)日:1997-07-22

    申请号:US455487

    申请日:1995-05-31

    摘要: A corona source suitable for use in vehicle ignition systems uses a conductive coil that receives an RF input at one end and has a corona discharge site at the other end, with a reference electrode capacitively coupled to the coil. The pitch and the length of the coil are selected to produce a corona discharge in response to an RF input signal at a predetermined frequency and voltage, through quarter wavelength resonation. Either the new resonant coil or other corona discharge devices can be used to remediate fluid-borne wastes by initiating and sustaining RF corona discharges within the fluid. The pulses used to initiate the corona discharge preferably have alternating positive and negative components, with high initial voltages on the positive components to initiate the discharge, followed by lower positive voltage levels to sustain the discharge. Unipolar pulses, preferably with progressively decreasing voltage levels, can also be used.

    摘要翻译: 适用于车辆点火系统的电晕源使用在一端接收RF输入并且在另一端具有电晕放电位置的导电线圈,其中参考电极电容耦合到线圈。 选择线圈的间距和长度,以通过四分之一波长谐振在预定频率和电压下响应于RF输入信号产生电晕放电。 新的共振线圈或其他电晕放电装置可用于通过启动和维持流体内的RF电晕放电来修复流体传播的废物。 用于启动电晕放电的脉冲优选具有交替的正和负分量,在正分量上具有高初始电压以开始放电,随后是较低的正电压电平以维持放电。 也可以使用单极脉冲,优选逐渐降低的电压电平。

    Artificial magnetic conductors
    26.
    发明授权
    Artificial magnetic conductors 有权
    人造磁导体

    公开(公告)号:US08957831B1

    公开(公告)日:2015-02-17

    申请号:US12749672

    申请日:2010-03-30

    IPC分类号: H01Q15/02 H01Q1/28

    CPC分类号: H01Q15/004

    摘要: In one embodiment an artificial magnetic conductor assembly to reflect an electromagnetic signal with a phase shift that measures between −90 degrees and +90 degrees at a target frequency comprises a first ground plane, a plurality of metallic elements disposed at a first distance from the first ground plane, a plurality of capacitors coupling adjacent metallic elements of the plurality of metallic elements, and a dielectric substrate disposed between the first ground plane and the array of metallic elements and formed from a material having a relative permittivity that measures between 1 and 20.

    摘要翻译: 在一个实施例中,用于以目标频率反映在-90度和+90度之间测量相位的电磁信号的人造磁导体组件包括第一接地平面,多个金属元件,其设置在与第一 接地平面,耦合所述多个金属元件的相邻金属元件的多个电容器,以及设置在所述第一接地平面和所述金属元件阵列之间的电介质基板,并且由具有介于1和20之间的相对介电常数的材料形成。

    Dielectric artificial impedance surface antenna
    27.
    发明授权
    Dielectric artificial impedance surface antenna 有权
    介质人造阻抗表面天线

    公开(公告)号:US08830129B2

    公开(公告)日:2014-09-09

    申请号:US13427682

    申请日:2012-03-22

    IPC分类号: H01Q1/38 H01Q15/00

    摘要: A dielectric artificial impedance surface antenna (DAISA) including a dielectric with a thickness, the dielectric thickness varying to provide a modulated impedance to a signal traversing the dielectric, the dielectric having a first surface, and a second surface opposite the first surface.

    摘要翻译: 一种电介质人造阻抗表面天线(DAISA),包括具有厚度的电介质,所述电介质厚度发生变化,以向穿过所述电介质的信号提供调制阻抗,所述电介质具有第一表面,以及与所述第一表面相对的第二表面。

    Multiple-band detector using frequency selective slots
    28.
    发明授权
    Multiple-band detector using frequency selective slots 有权
    多频带检测器使用频率选择性插槽

    公开(公告)号:US07923688B2

    公开(公告)日:2011-04-12

    申请号:US11981203

    申请日:2007-10-31

    IPC分类号: G01J5/02

    CPC分类号: H01L27/14621 H01L27/14649

    摘要: An optical detector pixel element. The novel pixel element includes a metallic substrate having a plurality of resonant apertures, each aperture adapted to resonantly transmit electromagnetic energy in a distinct frequency band, and a plurality of detectors adapted to detect the energy transmitted by the apertures. Each aperture is adapted to collect energy incident on an area larger than the aperture and focus the energy into a smaller, localized region in which one or more of the detectors is placed. The plural apertures are positioned such that they collect energy incident on a substantially common area, but are of different sizes such that they are resonant to different frequencies. Energy in different frequency bands are therefore funneled through different apertures. In an illustrative embodiment, several identical pixel elements are joined together to form an array.

    摘要翻译: 光学检测器像素元件。 新颖的像素元件包括具有多个谐振孔的金属衬底,每个孔适于在不同的频带中共振地传输电磁能,以及多个检测器,适于检测由孔传输的能量。 每个孔适于收集入射在大于孔径的区域上的能量,并将能量聚焦到其中放置一个或多个检测器的更小的局部区域中。 多个孔被定位成使得它们收集入射在基本公共区域上的能量,但是具有不同尺寸的能量,使得它们与不同的频率谐振。 因此,不同频带的能量通过不同的孔被漏斗。 在说明性实施例中,几个相同的像素元件连接在一起以形成阵列。

    MULTI-BAND SUB-WAVELENGTH IR DETECTOR HAVING FREQUENCY SELECTIVE SLOTS AND METHOD OF MAKING THE SAME
    29.
    发明申请
    MULTI-BAND SUB-WAVELENGTH IR DETECTOR HAVING FREQUENCY SELECTIVE SLOTS AND METHOD OF MAKING THE SAME 有权
    具有频率选择性位置的多带子波长红外探测器及其制作方法

    公开(公告)号:US20100276595A1

    公开(公告)日:2010-11-04

    申请号:US12433631

    申请日:2009-04-30

    IPC分类号: G01J5/02 B05D5/00 B44C1/22

    摘要: In one embodiment, a multiband infrared (IR) detector array includes a metallic surface having a plurality of periodic resonant structures configured to resonantly transmit electromagnetic energy in distinct frequency bands. A plurality of pixels on the array each include at least first and second resonant structures corresponding to first and second wavelengths. For each pixel, the first and second resonant structures have an associated detector and are arranged such that essentially all of the electromagnetic energy at the first wavelength passes through the first resonant structure onto the first detector, and essentially all of the electromagnetic energy at the second wavelength passes through the second resonant structure onto the second detector. In one embodiment, the resonant structures are apertures or slots, and the IR detectors may be mercad telluride configured to absorb radiation in the 8-12 μm band. Detection of more than two wavelengths may be achieved by proper scaling. A method of forming an IR detector array is also disclosed.

    摘要翻译: 在一个实施例中,多频带红外(IR)检测器阵列包括具有多个周期性谐振结构的金属表面,其被配置为在不同频带中共振地传输电磁能。 阵列上的多个像素包括至少对应于第一和第二波长的第一和第二谐振结构。 对于每个像素,第一和第二谐振结构具有相关联的检测器,并且被布置成使得第一波长的电磁能量基本上全部通过第一谐振结构到第一检测器上,并且基本上所有的第二电磁能量 波长通过第二谐振结构到第二检测器。 在一个实施例中,谐振结构是孔或狭缝,并且IR检测器可以是被配置为吸收8-12μm带中的辐射的巯基碲化物。 可以通过适当的缩放来实现超过两个波长的检测。 还公开了形成IR检测器阵列的方法。

    System and method of surface wave imaging to detect ice on a surface or damage to a surface
    30.
    发明授权
    System and method of surface wave imaging to detect ice on a surface or damage to a surface 有权
    用于表面波成像的系统和方法来检测表面上的冰或对表面的损伤

    公开(公告)号:US07719694B1

    公开(公告)日:2010-05-18

    申请号:US12144073

    申请日:2008-06-23

    IPC分类号: G01B11/30

    CPC分类号: G01B15/08 B64D15/20

    摘要: A system and a method are provided for detecting a surface characteristic of a surface. A plurality of transponders are located on the surface for transmitting electromagnetic surface waves and for receiving the electromagnetic surface waves upon being reflected, diffracted, refracted, scattered, or otherwise altered by ice on the surface. A controller is coupled to the plurality of transponders. The controller is adapted to coordinate the plurality of transponders for imaging the surface characteristic of the surface.

    摘要翻译: 提供了用于检测表面的表面特性的系统和方法。 多个转发器位于表面上用于传输电磁表面波,并且用于在由表面上的冰反射,衍射,折射,散射或以其它方式改变时接收电磁表面波。 控制器耦合到多个转发器。 控制器适于协调多个应答器,以对表面的表面特性进行成像。