Imaging through silhouetting
    1.
    发明授权
    Imaging through silhouetting 有权
    成像通过silhouetting

    公开(公告)号:US07843383B2

    公开(公告)日:2010-11-30

    申请号:US11552749

    申请日:2006-10-25

    IPC分类号: G01S13/89 G01S13/00

    CPC分类号: G01S13/89

    摘要: Improved microwave imaging using a reflector. By providing a reflective surface in the range of the imaging system, additional information is available for imaging objects. The relative surface provides silhouette information on the object, and increases the effective thickness of the object to aid analysis.

    摘要翻译: 使用反射镜改进微波成像。 通过在成像系统的范围内提供反射表面,附加信息可用于成像对象。 反射表面提供对象的轮廓信息,并增加对象的有效厚度以辅助分析。

    Mode selective coupler for whispering-gallery dielectric resonator
    2.
    发明授权
    Mode selective coupler for whispering-gallery dielectric resonator 有权
    用于耳语架介质谐振器的模式选择耦合器

    公开(公告)号:US07777583B2

    公开(公告)日:2010-08-17

    申请号:US12126296

    申请日:2008-05-23

    IPC分类号: H03B5/30 H01P7/10

    CPC分类号: H01P7/10 H03B5/187

    摘要: A whispering gallery mode dielectric resonator includes a conductive enclosure comprising a top, a bottom and walls. The resonator also includes a dielectric element disposed in the enclosure and operative to support a desired resonant mode that is dependent on a shape and dimensions of the dielectric resonator; and a mode selective coupling structure disposed over the enclosure and configured to selectively couple electromagnetic energy of the desired mode and configured not to substantially couple electromagnetic energy of a spurious mode supported in a region between the enclosure and the dielectric element.

    摘要翻译: 耳语画廊模式介质谐振器包括一个包括顶部,底部和墙壁的导电外壳。 谐振器还包括设置在外壳中并且可操作地支撑取决于介质谐振器的形状和尺寸的期望谐振模式的电介质元件; 以及模式选择耦合结构,其设置在所述外壳上并且被配置为选择性地耦合所述期望模式的电磁能并且被配置为不基本上耦合支撑在所述外壳和所述电介质元件之间的区域中的寄生模式的电磁能。

    System and method for microwave imaging using an interleaved pattern in a programmable reflector array
    3.
    发明授权
    System and method for microwave imaging using an interleaved pattern in a programmable reflector array 有权
    使用可编程反射器阵列中的交织图案进行微波成像的系统和方法

    公开(公告)号:US07333055B2

    公开(公告)日:2008-02-19

    申请号:US11088610

    申请日:2005-03-24

    IPC分类号: H01Q15/14 H01Q3/38

    CPC分类号: G01S13/89 H01Q1/38 H01Q3/46

    摘要: An antenna array for use within a microwave imaging system includes a plurality of reflecting antenna elements, each capable of being programmed with respective phase-shifts in a first pattern to direct a first beam of microwave radiation towards a first target, and each being capable of being programmed with respective phase-shifts in a second pattern to direct a second beam of microwave radiation towards a second target. To capture a microwave image of an object, the antenna elements are programmed with respective phase-shifts in an interleaved pattern including a portion of the first pattern and a portion of the second pattern.

    摘要翻译: 在微波成像系统内使用的天线阵列包括多个反射天线元件,每个反射天线元件能够以第一图案中的相应相移进行编程,以将第一微波辐射束引向第一目标,并且每个能够 以第二图案中的相应的相移编程,以将第二射线束的微波辐射引向第二目标。 为了捕获对象的微波图像,天线元件以包括第一图案的一部分和第二图案的一部分的交错图案中的各自相移进行编程。

    Microwave resonator
    4.
    发明授权
    Microwave resonator 失效
    微波谐振器

    公开(公告)号:US5712605A

    公开(公告)日:1998-01-27

    申请号:US315281

    申请日:1994-09-29

    CPC分类号: H01P7/10 H01P7/06 H03B5/1864

    摘要: A simplified apparatus and a design method for providing microwave resonators having high Q factors. The apparatus includes a resonant microwave cavity having three mutually orthogonal dimensions and a low loss dielectric body substantially enclosing each dimension of the resonant microwave cavity. To further increase Q-factor, the apparatus of the invention preferably includes a plurality of resonant microwave cavities and a plurality of low loss dielectric bodies each substantially enclosing a respective one of the microwave resonant cavities. In some embodiments the low loss dielectric bodies are arranged in a stack. In other embodiments the low loss dielectric bodies are concentrically arranged. The design method includes selecting a resonant mode frequency and a height dimension of a microwave resonant cavity, extending radial bessel function solutions along a radius of the cavity to determine radial locations of electric field nulls of a resonant mode of microwaves, and substantially positioning concentric dielectric tube portions of the bodies at the radial locations of the electric field nulls. Similarly, the method of the invention includes extending cavity harmonic function solutions along the axis of symmetry of the cavity to determine axial locations of electric field nulls of the resonant mode of microwaves, and substantially positioning dielectric plate portions of the bodies at the axial locations of the electric field nulls.

    摘要翻译: 一种用于提供具有高Q因子的微波谐振器的简化装置和设计方法。 该装置包括具有三个相互正交的尺寸的谐振微波腔和基本上包围谐振微波腔的每个尺寸的低损耗介电体。 为了进一步增加Q因子,本发明的装置优选地包括多个谐振微波腔和多个低损耗介电体,每个基本上包围相应的一个微波谐振腔。 在一些实施例中,低损耗介电体被布置成堆叠。 在其它实施例中,低损耗介电体同心地布置。 该设计方法包括选择微波谐振腔的谐振模式频率和高度尺寸,沿着腔的半径延伸径向贝塞尔函数解,以确定微波谐振模式的电场零点的径向位置,并且基本上定位同心电介质 在电场的径向位置处的主体的管部分为零。 类似地,本发明的方法包括沿着腔的对称轴延伸空腔谐波函数解,以确定微波谐振模式的电场零点的轴向位置,并且将主体的绝缘板部分基本上定位在 电场无效。

    System and method for pattern design in microwave programmable arrays
    5.
    发明授权
    System and method for pattern design in microwave programmable arrays 有权
    微波可编程阵列中图案设计的系统和方法

    公开(公告)号:US08289199B2

    公开(公告)日:2012-10-16

    申请号:US11089298

    申请日:2005-03-24

    IPC分类号: H01Q15/14 H01Q3/38 G01S13/89

    CPC分类号: G01S13/89 H01Q1/38 H01Q3/46

    摘要: An antenna array for use within a microwave imaging system to capture a microwave image of a target is selectively programmed to optimize one or more parameters of the microwave imaging system. The array includes a plurality of antenna elements, each capable of being programmable with a respective phase shift to direct a beam of microwave radiation toward the target such that the microwave radiation from each of the plurality of antenna elements arrives at the target substantially in-phase. To optimize a parameter of the microwave imaging system, the phase shifts of selective ones of the antenna elements are altered, while still maintaining the substantially in-phase microwave radiation at the target.

    摘要翻译: 在微波成像系统内用于捕获目标的微波图像的天线阵列被选择性地编程以优化微波成像系统的一个或多个参数。 该阵列包括多个天线元件,每个天线元件能够以相应的相移可编程,以将微波辐射束引向目标,使得来自多个天线元件中的每一个的微波辐射到达目标基本上同相 。 为了优化微波成像系统的参数,天线元件中的选择性天线元件的相移被改变,同时仍保持目标处的基本上同相的微波辐射。

    Nanoscale displacement detector
    6.
    发明授权
    Nanoscale displacement detector 失效
    纳米尺度位移检测器

    公开(公告)号:US07347085B2

    公开(公告)日:2008-03-25

    申请号:US11280365

    申请日:2005-11-16

    申请人: Robert C. Taber

    发明人: Robert C. Taber

    IPC分类号: G02B7/04

    CPC分类号: G01Q20/04 G01Q60/38

    摘要: A nanoscale displacement detector includes a cantilever integrated with an optical resonator, referred to herein as a “microresonator.” The microresonator and cantilever are configured such that displacement of the cantilever relative to the microresonator causes a change in the resonant frequency of the microresonator. The change in the resonant frequency of the microresonator is used to monitor cantilever displacement. In an embodiment, the microresonator includes a cavity that faces the cantilever and the cantilever includes a protrusion that faces the microresonator and is aligned with the cavity.

    摘要翻译: 纳米尺度位移检测器包括与光谐振器集成的悬臂,在本文中称为“微谐振器”。 微谐振器和悬臂被配​​置为使得悬臂相对于微谐振器的位移导致微谐振器的谐振频率的变化。 微谐振器谐振频率的变化用于监测悬臂位移。 在一个实施例中,微谐振器包括面向悬臂的空腔,并且悬臂包括面向微谐振器并与空腔对准的突起。

    Device for reflecting electromagnetic radiation
    8.
    发明授权
    Device for reflecting electromagnetic radiation 有权
    用于反射电磁辐射的装置

    公开(公告)号:US07224314B2

    公开(公告)日:2007-05-29

    申请号:US10997422

    申请日:2004-11-24

    IPC分类号: H01Q1/38

    摘要: A reflectarray utilizes switching devices with non-ideal impedance characteristics to vary the impedance of reflecting elements. The antennas of the reflecting elements are configured as a function of the impedance of the non-ideal switching devices to provide optimal phase-amplitude performance. In particular, the antennas are configured such that the impedance of each antenna is proportional to the square root of the impedance of the non-ideal switching devices when in an on state and when in an off state.

    摘要翻译: 反射阵列利用具有非理想阻抗特性的开关器件来改变反射元件的阻抗。 反射元件的天线被配置为非理想开关器件的阻抗的函数,以提供最佳的相位幅度性能。 特别地,天线被配置为使得当处于接通状态和处于断开状态时,每个天线的阻抗与非理想开关器件的阻抗的平方根成比例。

    System and method for inspecting transportable items using microwave imaging
    9.
    发明授权
    System and method for inspecting transportable items using microwave imaging 失效
    使用微波成像检查可运输物品的系统和方法

    公开(公告)号:US07183963B2

    公开(公告)日:2007-02-27

    申请号:US11088831

    申请日:2005-03-24

    CPC分类号: G01V8/005 G01N22/00 G01S13/89

    摘要: An inspection system uses microwave radiation to capture a microwave image of a transportable item. The system includes a transmit scanning panel including a transmit array of transmit antenna elements, each being programmable with a respective phase delay to direct a transmit beam of microwave radiation toward a target of the transportable item for transmission of the microwave radiation through the target. The system further includes a receive scanning panel including a receive array of receive antenna elements, each being programmable with a respective phase delay to receive a receive beam of microwave radiation from the target. A processor measures the amplitude and phase of the microwave radiation in the receive beam to determine a relative value of a pixel within the microwave image of the transportable item based on a reference value of the pixel.

    摘要翻译: 检查系统使用微波辐射来捕获可移动物品的微波图像。 该系统包括发射扫描面板,其包括发射天线元件的发射阵列,每个发射天线元件可以相应的相位延迟进行编程,以将微波辐射的发射光束引向可运输物品的目标物,以便通过目标传输微波辐射。 该系统还包括接收扫描面板,其包括接收阵列的接收天线元件,每个接收阵列可以相应的相位延迟来编程,以从目标接收微波辐射的接收束。 处理器测量接收波束中的微波辐射的幅度和相位,以基于像素的参考值来确定可运输物品的微波图像内的像素的相对值。