公开(公告)号：US20140327016A1

公开(公告)日：2014-11-06

申请号：US14338598

申请日：2014-07-23

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： PANKAJ B. SHAH ,  H. ALFRED HUNG

IPC: H01L29/93 ,  H01L29/872 ,  H01L29/16 ,  H01L29/66 ,  H01L29/22

CPC classification number: H01L29/93 ,  H01L29/1608 ,  H01L29/2003 ,  H01L29/205 ,  H01L29/22 ,  H01L29/66174 ,  H01L29/872

Abstract: A varactor comprising two Schottky diodes, each diode comprising a substrate and a plurality of layers formed on the substrate including at least one GaN layer and at least one semi-insulating material layer formed of a material with an energy gap greater than 3.5 and free carrier mobility less than 300 cm2/V-s; the Schottky diodes having cathodes adapted to be connected to an AC voltage input and being configured so that as the AC voltage applied to the cathodes increases the capacitance decreases nonlinearly, the nonlinear transition from high capacitance to low capacitance being adjustable by utilizing the intrinsic carrier concentration of the semi-insulating layer to obtain an optimal nonlinear transition for the predetermined AC voltage applied to the cathodes. A method of making a varactor comprising computer modeling to produce capacitance-voltage curves, modifying at least one semi-insulating region, and modeling power input/output efficiency for a predetermined input signal.

Abstract translation: 一种包括两个肖特基二极管的变容二极管，每个二极管包括衬底和形成在衬底上的多个层，包括至少一个GaN层和由能隙大于3.5的材料形成的至少一个半绝缘材料层和自由载体 迁移率小于300 cm2 / Vs; 肖特基二极管具有适于连接到AC电压输入的阴极并且被配置为使得随着施加到阴极的AC电压增加，电容非线性减小，从高电容到低电容的非线性转变可通过利用本征载流子浓度 以获得施加到阴极的预定AC电压的最佳非线性转变。 一种制造变容二极管的方法，包括计算机建模以产生电容 - 电压曲线，修改至少一个半绝缘区域，以及为预定输入信号建模功率输入/输出效率。

公开(公告)号：US20140241665A1

公开(公告)日：2014-08-28

申请号：US13780112

申请日：2013-02-28

Applicant: U.S. Army Research Laboratory ATTN RDRL-LOC-I

Inventor： Leonid Beresnev

IPC: G02B6/32

CPC classification number: G02B6/32 ,  G02B27/30

Abstract: A method and apparatus for controlled displacement, rotation and deformation of parts of a fiber optic collimator so as to provide multiple degrees of adjustment freedom that are decoupled one from another, for adjusting the path of a light beam, comprising: an output elongate hollow node for passing a light beam therethrough and towards a lens, and an elongate hollow base node having separate top and bottom parts connected to each other by opposed ends of a plurality of flexible rods that restrict the relative movement between the top and bottom parts of the base node to substantially only translational parallel movement. Opposed portions of the top and bottom parts of the base node each include a respective screw and an opposed slanted surface, which upon interaction, develop a shearing force which is applied to the top and bottom parts of the base node and cause a translational parallel relative movement therebetween.

Abstract translation: 一种用于光纤准直器的部件的受控位移，旋转和变形的方法和装置，以便提供多个度的调节自由度，以便彼此分离，用于调节光束的路径，包括：输出细长的中空节点 用于使光束穿过其中并朝向透镜，以及细长的中空基座节点，其具有通过多个柔性杆的相对端彼此连接的单独的顶部和底部部分，所述多个柔性杆限制所述基部的顶部和底部之间的相对运动 节点到基本上仅平移平行运动。 基部节点的顶部和底部的相对部分各自包括相应的螺钉和相对的倾斜表面，其在相互作用时产生剪切力，该剪切力施加到基部节点的顶部和底部，并且使平移相对 之间的移动。

公开(公告)号：US20140231618A1

公开(公告)日：2014-08-21

申请号：US14039665

申请日：2013-09-27

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Leonid A. Beresnev ,  Jony J. Liu ,  Gary W. Carhart

IPC: H01S3/13 ,  G02B27/09

CPC classification number: G02B27/0087 ,  H01S3/005 ,  H01S3/1307 ,  H01S3/2383

Abstract: A method and apparatus for coherent beam combining in an array of laser beam collimators. The array of laser beam collimators includes an array of a plurality collimating lenses, each lens intercepting a respective one of a plurality of divergent laser beams. Each collimating lens is joined with adjacent collimating lenses such that an output aperture is formed with a common vertex of the adjacently joined collimating lenses. A concave mirror is positioned a distance from the common vertex for receiving a fraction of each of the collimated laser beams that passed through a portion of each of the collimating lenses that are adjacent to the common vertex, and then providing reflected fractional collimated laser beams. A sensor intercepts the reflected fractional collimated laser beams so as to provide a signal that is applied to synchronize the phase of each of the collimated laser beams.

Abstract translation: 一种用于激光束准直仪阵列中相干光束组合的方法和装置。 激光束准直仪的阵列包括多个准直透镜的阵列，每个透镜拦截多个发散激光束中的相应一个。 每个准直透镜与相邻的准直透镜连接，使得输出孔形成有相邻接合的准直透镜的公共顶点。 凹面镜与公共顶点定位一段距离，用于接收通过与公共顶点相邻的每个准直透镜的一部分的准直激光束的一部分，然后提供反射的分数准直激光束。 传感器拦截反射的分数准直激光束，以便提供被施加以使每个准直激光束的相位同步的信号。

公开(公告)号：US20140130601A1

公开(公告)日：2014-05-15

申请号：US13920570

申请日：2013-06-18

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Weimin Zhou ,  Olukayode Okusaga ,  James P Cahill

IPC: G01N29/24

CPC classification number: G01V1/18 ,  G01H9/004 ,  G01S7/521 ,  G01S15/02

Abstract: A method and system comprising: an optoelectronic oscillator comprising a light generator, a modulator, and at least one optical fiber, the optoelectronic oscillator operating to send a modulated carrier signal through the optical fiber into a target area and receive the return signal; a circuit for removal of the carrier frequency operatively connected to the oscillator comprising at least one phase shifter; at least one mixer operatively connected to the at least one phase shifter; at least control circuit operatively connected the at least one mixer and the at least one phase shifter for controlling the phase shifter and operating to cancel signals other than the sideband signals; a signal processor for processing the sideband signals to detect acoustical and/or vibrational signals from the target area. The method comprises sensing vibrational and/or acoustical signals for detection of acoustical and/or vibrational signals in the target area.

Abstract translation: 一种方法和系统，包括：光电子振荡器，包括光发生器，调制器和至少一个光纤，所述光电子振荡器用于将调制的载波信号通过所述光纤发送到目标区域并接收所述返回信号; 用于去除可操作地连接到包括至少一个移相器的振荡器的载波频率的电路; 至少一个混合器，可操作地连接到所述至少一个移相器; 至少控制电路可操作地连接至少一个混频器和至少一个移相器，用于控制移相器并操作以消除除边带信号之外的信号; 用于处理边带信号以从目标区域检测声学和/或振动信号的信号处理器。 该方法包括感测用于检测目标区域中的声学和/或振动信号的振动和/或声学信号。

公开(公告)号：US20140043891A1

公开(公告)日：2014-02-13

申请号：US13725473

申请日：2012-12-21

Applicant: U.S. ARMY RESEARCH LABORATORY ATTN: RDRL-LOC-I

Inventor： ALAN S. EDELSTEIN ,  JONATHAN R. PETRIE

IPC: G11C11/16

CPC classification number: G11B5/09 ,  G11B5/33 ,  G11B5/332 ,  G11B11/14 ,  G11C11/16 ,  G11C11/1673 ,  G11C11/1697

Abstract: A method and system for storing information in a nonvolatile memory comprising: a substrate comprising magnetic material operatively associated therewith, the magnetic material having at least one first portion of low permeability and at least one second portion of high permeability; a reader comprising a sensor for reading information by measuring the magnetic permeability for the at least one first portion and the at least one second portion; whereby the at least one first and second portions are subjected to a magnetic probe field from one of an external source, the sensor, or a combination of an external source and the sensor.

Abstract translation: 一种用于将信息存储在非易失性存储器中的方法和系统，包括：包括与其可操作地相关联的磁性材料的衬底，所述磁性材料具有至少一个低透过率的第一部分和至少一个第二部分的高磁导率; 读取器，包括用于通过测量所述至少一个第一部分和所述至少一个第二部分的磁导率来读取信息的传感器; 由此至少一个第一和第二部分经受来自外部源，传感器或外部源和传感器的组合中的一个的磁探针场。

公开(公告)号：US20140015176A1

公开(公告)日：2014-01-16

申请号：US13927985

申请日：2013-06-26

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Eric D. Wetzel ,  Paul T. Nenno

IPC: F16F13/00

CPC classification number: F16F13/002 ,  A61F5/0123 ,  F16F13/08

Abstract: Rate-dependent, elastically-deformable devices according to various embodiments can be stretched and recovered at low elongation rates. Yet they become stiff and resistive to stretching at high elongation rates. In one embodiment, a rate-dependent, elastically-deformable device includes an elastically-deformable confinement member; one or more filaments placed inside the elastically-deformable confinement member; and a fluid that substantially fills the remaining volume inside the elastically-deformable confinement member. The resistance force to extension of the device is designed to increase as the extension rate of the device increases. At low elongation rates the filaments can readily slide past each other. At high elongation rates, the fluid transforms to a less flowable material that greatly increases the force and energy required for elongation; or transforms to a non-flowable material that resists elongation. The devices thus can be stretched and recovered at low elongation rates, but become extremely stiff and resistive to stretching at high elongation rates.

Abstract translation: 根据各种实施例的依赖于速率的可弹性变形的装置可以以低伸长率被拉伸和回收。 然而它们变得坚硬并且在高伸长率下具有抗拉伸性。 在一个实施例中，速率依赖性，可弹性变形的装置包括可弹性变形的限制构件; 一个或多个细丝放置在可弹性变形的限制构件的内部; 以及基本上填充可弹性变形的限制构件内的剩余容积的流体。 设备的延伸阻力被设计为随着设备的扩展速率的增加而增加。 在低伸长率下，长丝可以容易地滑过彼此。 在高伸长率下，流体转变为较不易流动的材料，大大增加了伸长所需的力和能量; 或转变成阻止伸长的不可流动材料。 因此，这些装置可以以低伸长率被拉伸和回收，但是变得非常硬并且在高伸长率下不能拉伸。

公开(公告)号：US20130315590A1

公开(公告)日：2013-11-28

申请号：US13955042

申请日：2013-07-31

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Weimin Zhou

IPC: H04Q11/00

CPC classification number: H04Q11/0003 ,  H01Q3/2676 ,  H04B2210/006

Abstract: An apparatus for generating a frequency spectrum of an RF signal comprising a gate switch for generating a series of pulses from a laser of wavelength lambda modulated by an input RE signal, a first fiber optical loop for circulating a first percentage of a first pulse of the series of pulses from the gate switch, for a predetermined number of cycles n where each cycle takes time t1, a second fiber optical loop for conducting a second percentage of the first pulse for predetermined number of cycles “k”, where each cycle takes time t2, where t2*k=t1*n, a first switch with a first state for coupling the first pulse from the gate switch to a coupler, the coupler coupling the first pulse into the first fiber optical loop and tapping replicas of the pulse from the first fiber optical loop, and a second state for coupling the second percentage of the first pulse to the coupler to increase intensity of the tapped replica pulses, a processor for correlating the replicas of the pulse with each other to produce a set of data points comprising a plurality of multiplexed correlated pulses and transforming the data points into a channelized frequency spectrum of the input RF signal.

Abstract translation: 一种用于产生RF信号的频谱的装置，包括用于从由输入RE信号调制的波长λ的激光产生一系列脉冲的栅极开关，第一光纤光环路，用于将第一脉冲的第一百分比循环 来自门开关的一系列脉冲，其中每个周期需要时间t1的预定数量的周期n，用于将预定数量的周期“k”的第一百分比的第一脉冲进行传送的第二光纤光环路，其中每个周期需要时间 t2，其中t2 * k = t1 * n，具有用于将来自栅极开关的第一脉冲耦合到耦合器的第一状态的第一开关，耦合器将第一脉冲耦合到第一光纤光回路中，并且将脉冲的分接复制 所述第一光纤光环路和用于将所述第一脉冲的所述第二百分比耦合到所述耦合器以增加所述抽头复制脉冲的强度的第二状态，用于将所述脉冲的副本与每个 另外产生一组包括多个多路复用相关脉冲的数据点，并将数据点变换成输入RF信号的信道化频谱。

公开(公告)号：US20130293429A1

公开(公告)日：2013-11-07

申请号：US13686944

申请日：2012-11-28

Applicant: U.S. ARMY RESEARCH LABORATORY ATTN: RDRL-LOC-I

Inventor： Steven D. Keller ,  Amir I. Zaghloul

IPC: H01Q1/00

CPC classification number: H01Q1/00 ,  B82Y15/00 ,  H01Q1/273 ,  H01Q9/0407 ,  Y10T29/49016

Abstract: A method and apparatus for providing multiple functions using nanotube threads comprising: a first nanotube thread and a second nanotube thread, the first nanotube thread and the second nanotube thread arranged to form a mesh, wherein the first nanotube thread further comprises a measurable invariant property and the second nanotube thread comprises a measurable variant property.

Abstract translation: 一种使用纳米管线提供多个功能的方法和装置，包括：第一纳米管线和第二纳米管线，所述第一纳米管线和所述第二纳米管线布置成形成网，其中所述第一纳米管线还包括可测量的不变性质， 第二纳米管线包括可测量的变体性质。

公开(公告)号：US20130241787A1

公开(公告)日：2013-09-19

申请号：US13686962

申请日：2012-11-28

Applicant: U.S. ARMY RESEARCH LABORATORY ATTN: RDRL-LOC-I

Inventor： William O. Coburn ,  Amir I. Zaghloul

IPC: H01Q13/10

CPC classification number: H01Q13/106 ,  H01Q13/085

Abstract: A planar antenna comprising: a substrate, a resonant element generating an electromagnetic wave, a plurality of parallel, spaced apart conductive strips on the substrate, wherein conductive strips form collinear rows of at least two strips that are physically separated by a slot to guide the electromagnetic wave in a specific direction.

Abstract translation: 一种平面天线，包括：衬底，产生电磁波的谐振元件，在所述衬底上的多个平行的间隔开的导电条，其中导电条形成至少两个条的共线行，所述条被物理上由狭槽分开以引导 电磁波在特定方向。

公开(公告)号：US20130214984A1

公开(公告)日：2013-08-22

申请号：US13713030

申请日：2012-12-13

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Amir I. Zaghloul ,  Steven J. Weiss

IPC: H01Q19/10 ,  H01Q15/14

CPC classification number: H01Q19/10 ,  H01Q15/008 ,  H01Q15/14 ,  H01Q19/108

Abstract: An electromagnetic bandgap structure comprising a progressive cascade of a plurality of patterns of cells. The cells of each pattern are dimensioned so that each pattern has a reflection phase response centered at a different, but closely-spaced, frequency compared with the reflection phase response of an adjacently positioned pattern, so that the combined reflection phase response of the plurality of patterns provides a continuous wideband operational range.

Abstract translation: 一种电磁带隙结构，包括多个细胞图案的渐进级联。 每个图案的单元的尺寸被设计为使得每个图案具有与相邻定位图案的反射相位响应相比中心的不同但是相当间隔的频率的反射相位响应，使得多个图案的组合反射相位响应 图案提供了连续的宽带操作范围。