公开(公告)号：US09448305B2

公开(公告)日：2016-09-20

申请号：US14226213

申请日：2014-03-26

Applicant: Elwha LLC

Inventor： Jeffrey A. Bowers ,  David Jones Brady ,  Tom Driscoll ,  John Desmond Hunt ,  Roderick A. Hyde ,  Nathan Ingle Landy ,  Guy Shlomo Lipworth ,  Alexander Mrozack ,  David R. Smith ,  Clarence T. Tegreene

IPC: H01Q19/10 ,  G01S13/89 ,  G01S13/88 ,  H01Q3/34 ,  H01Q19/00 ,  G01S13/00

CPC classification number: G01S13/887 ,  G01S13/89 ,  H01Q3/34 ,  H01Q19/10

Abstract: An array of scattering and/or reflector antennas are configured to produce a series of beam patterns, where in some embodiments the scattering antenna and/or the reflector antenna includes complementary metamaterial elements. In some embodiments control circuitry is operably connected to the array to produce an image of an object in the beam pattern.

Abstract translation: 散射和/或反射器天线的阵列被配置为产生一系列波束图案，其中在一些实施例中，散射天线和/或反射器天线包括互补的超材料元件。 在一些实施例中，控制电路可操作地连接到阵列以产生束图案中物体的图像。

公开(公告)号：US20160203910A1

公开(公告)日：2016-07-14

申请号：US15076856

申请日：2016-03-22

Applicant: Elwha LLC

Inventor： Jeffrey A. Bowers ,  Alistair K. Chan ,  Geoffrey F. Deane ,  Roderick A. Hyde ,  Nathan Kundtz ,  Nathan P. Myhrvold ,  David R. Smith ,  Lowell L. Wood,, JR.

IPC: H01G4/008 ,  H05K1/09 ,  B32B9/00 ,  H05K1/18 ,  B32B5/18 ,  H05K1/02 ,  H05K1/03

CPC classification number: H01G4/008 ,  B32B5/18 ,  B32B9/007 ,  B32B37/14 ,  B32B2266/04 ,  B32B2266/057 ,  B32B2266/126 ,  B32B2307/202 ,  B32B2457/08 ,  B82Y30/00 ,  H01G4/002 ,  H01G4/005 ,  H01L27/12 ,  H01L29/1606 ,  H01L29/78603 ,  H05K1/02 ,  H05K1/0274 ,  H05K1/0306 ,  H05K1/032 ,  H05K1/09 ,  H05K1/097 ,  H05K1/181 ,  H05K3/00 ,  H05K2201/0323 ,  H05K2201/10007 ,  H05K2201/10121 ,  Y10S977/734 ,  Y10T29/49128 ,  Y10T29/49826 ,  Y10T156/10 ,  Y10T428/24331 ,  Y10T428/24777 ,  Y10T428/24996 ,  Y10T428/249981 ,  Y10T428/24999 ,  Y10T428/30

Abstract: An apparatus having reduced phononic coupling between a graphene monolayer and a substrate is provided. The apparatus includes an aerogel substrate and a monolayer of graphene coupled to the aerogel substrate.

公开(公告)号：US20160018494A1

公开(公告)日：2016-01-21

申请号：US14334398

申请日：2014-07-17

Applicant: Elwha LLC

Inventor： Tom Driscoll ,  David R. Smith ,  Yaroslav A. Urzhumov

IPC: G01R33/483 ,  G01R33/3815 ,  G01R33/383 ,  G01R33/345 ,  G01R33/54

CPC classification number: G01R33/36 ,  G01R33/34046 ,  G01R33/3415 ,  G01R33/345 ,  G01R33/3607 ,  G01R33/3614 ,  G01R33/3621

Abstract: Described embodiments include a system, apparatus, and method. An apparatus includes an array of at least two groups of at least two artificially structured electromagnetic unit cells. Each group of the at least two groups configured to be respectively linearly arranged with respect to the z-axis of the bore of MRI or NMR device. Each group of the at least two groups of artificially structured electromagnetic unit cells configured to transform an incident pulse of radiofrequency electromagnetic waves into a pulse of radiofrequency magnetic field B1 orientated transverse to a segment of the z-axis and spatially proximate to the group. The apparatus includes a radiofrequency electromagnetic wave conducting structure configured to selectably distribute a received pulse of radiofrequency electromagnetic waves to a group of the at least two groups.

Abstract translation: 所描述的实施例包括系统，装置和方法。 一种装置包括至少两组至少两个人造结构的电磁单位电池的阵列。 所述至少两组中的每一组被配置为相对于MRI或NMR装置的孔的z轴分别线性排列。 所述至少两组人造结构的电磁单位单元的每一组被配置为将射频电磁波的入射脉冲变换成横向于z轴的段并且在空间上接近该组的射频磁场B1的脉冲。 该装置包括射频电磁波导电结构，其被配置为将所接收的射频电磁波的脉冲可选择地分配给至少两组的一组。

公开(公告)号：US20150222075A1

公开(公告)日：2015-08-06

申请号：US14684144

申请日：2015-04-10

Applicant: ELWHA LLC

Inventor： Jeffrey A. Bowers ,  William D. Duncan ,  Roderick A. Hyde ,  Jordin T. Kare ,  Nathan Kundtz ,  Ruopeng Liu ,  Bruce M. McWilliams ,  John B. Pendry ,  Daniel A. Roberts ,  David Schurig ,  David R. Smith ,  Clarence T. Tegreene ,  Lowell L. Wood,, JR.

IPC: H01S3/091

CPC classification number: H01S3/0912 ,  G02F2202/32 ,  H01S3/0092 ,  H01S3/0604 ,  H01S3/108 ,  H01S5/0604 ,  H01S5/10 ,  H01S5/1021 ,  H01S5/105 ,  H01S5/4031

Abstract: A method of pumping an optical resonator includes directing light generated by a pumping light at the optical resonator, exciting a propagating surface state of the optical resonator at an interface of the optical resonator, and changing a propagating frequency of the light proximate the interface, where the changed frequency corresponds to a propagation frequency of the surface state. The optical resonator includes a photonic crystal and a material, where the interface is formed between the photonic crystal and the material.

公开(公告)号：US20150029050A1

公开(公告)日：2015-01-29

申请号：US13950719

申请日：2013-07-25

Applicant: Elwha LLC

Inventor： Tom Driscoll ,  Roderick A. Hyde ,  Jordin T. Kare ,  David R. Smith ,  Clarence T. Tegreene

IPC: H01Q15/14

CPC classification number: H01Q15/14 ,  H01Q1/273 ,  H01Q3/30

Abstract: A wearable radar reflector includes a retroreflector configured to reflect radiation received from a vehicle, and incorporated into a garment worn by a pedestrian.

Abstract translation: 可穿戴雷达反射器包括后向反射器，其被配置为反射从车辆接收的辐射，并且被并入由行人佩戴的衣服中。

公开(公告)号：US20140376156A1

公开(公告)日：2014-12-25

申请号：US14479984

申请日：2014-09-08

Applicant: Elwha LLC

Inventor： Alistair K. Chan ,  Geoffrey F. Deane ,  Roderick A. Hyde ,  Jeffrey A. Bowers ,  Nathan Kundtz ,  Nathan P. Myhrvold ,  David R. Smith ,  Lowell L. Wood,, Jr.

IPC: H01G4/008 ,  H01L27/12 ,  H05K1/09 ,  H01L29/16

CPC classification number: H01G4/008 ,  B32B5/18 ,  B32B9/007 ,  B32B37/14 ,  B32B2266/04 ,  B32B2266/057 ,  B32B2266/126 ,  B32B2307/202 ,  B32B2457/08 ,  B82Y30/00 ,  H01G4/002 ,  H01G4/005 ,  H01L27/12 ,  H01L29/1606 ,  H01L29/78603 ,  H05K1/02 ,  H05K1/0274 ,  H05K1/0306 ,  H05K1/032 ,  H05K1/09 ,  H05K1/097 ,  H05K1/181 ,  H05K3/00 ,  H05K2201/0323 ,  H05K2201/10007 ,  H05K2201/10121 ,  Y10S977/734 ,  Y10T29/49128 ,  Y10T29/49826 ,  Y10T156/10 ,  Y10T428/24331 ,  Y10T428/24777 ,  Y10T428/24996 ,  Y10T428/249981 ,  Y10T428/24999 ,  Y10T428/30

Abstract: An apparatus having reduced phononic coupling between a graphene monolayer and a substrate is provided. The apparatus includes an aerogel substrate and a monolayer of graphene coupled to the aerogel substrate.

Abstract translation: 提供了一种在石墨烯单层和基底之间具有减小的声子耦合的装置。 该装置包括气凝胶基底和耦合到气凝胶基底的单层石墨烯。

公开(公告)号：US10224587B2

公开(公告)日：2019-03-05

申请号：US15651947

申请日：2017-07-17

Applicant: Elwha LLC

Inventor： Tom Driscoll ,  John Desmond Hunt ,  Nathan Ingle Landy ,  David R. Smith ,  Yaroslav A. Urzhumov

IPC: H01P1/16 ,  G02B6/28 ,  G02B5/32 ,  G02B27/28 ,  G02B1/00 ,  H01Q15/02 ,  H01Q19/06 ,  G02B6/00 ,  G03H1/00 ,  G03H1/08 ,  H01P5/02 ,  H01P5/19 ,  H01P5/20 ,  H01P5/22 ,  H01Q1/42 ,  H01Q13/02 ,  H01Q13/06

Abstract: The present disclosure provides systems and methods associated with mode conversion for electromagnetic field modification. A mode converting structure (holographic metamaterial) is formed with a distribution of dielectric constants chosen to convert an electromagnetic radiation pattern from a first mode to a second mode to attain a target electromagnetic radiation pattern that is different from the input electromagnetic radiation pattern. A solution to a holographic equation provides a sufficiently accurate approximation of a distribution of dielectric constants that can be used to form a mode converting device for use with one or more transmission lines, such as waveguides. One or more optimization algorithms can be used to improve the efficiency of the mode conversion.

公开(公告)号：US10170831B2

公开(公告)日：2019-01-01

申请号：US14835547

申请日：2015-08-25

Applicant: Elwha LLC

Inventor： Jeffrey A. Bowers ,  Tom Driscoll ,  Roderick A. Hyde ,  Jordin T. Kare ,  David R. Smith ,  Clarence T. Tegreene ,  Lowell L. Wood, Jr.

IPC: H01Q3/20 ,  H01Q25/00 ,  H01Q21/29 ,  H01Q3/18 ,  H01Q15/00 ,  H01Q3/00

Abstract: A system for generating, forming and receiving electromagnetic transmissions according to a dynamically selectable electromagnetic pattern, beam pattern or beam form can use a selectably altered backplane structure. A spatially dependent pattern of amplitudes and/or phases can be formed by selecting a state of the selectably altered backplane structure from a set of states. The altered backplane structure can include a movable mechanical structure that causes a set of patterns of spatially dependent amplitudes of electromagnetic energy depending on a position of the structure. A beam pattern from a set of beam patterns can be selected by selecting a state (e.g., the position) of the backplane structure that creates a set of spatially dependent amplitudes of electromagnetic energy.

公开(公告)号：US09927503B2

公开(公告)日：2018-03-27

申请号：US14334368

申请日：2014-07-17

Applicant: Elwha LLC

Inventor： Tom Driscoll ,  David R. Smith ,  Yaroslav A. Urzhumov

IPC: G01R33/36 ,  G01R33/345 ,  G01R33/34 ,  G01R33/3415

CPC classification number: G01R33/34046 ,  G01R33/3415 ,  G01R33/345 ,  G01R33/36 ,  G01R33/3607 ,  G01R33/3614 ,  G01R33/3621

Abstract: Described embodiments include an apparatus, and a method. An apparatus includes an array of at least two artificially structured electromagnetic unit cells. The at least two artificially structured electromagnetic unit cells are configured to generate a pulse of radiofrequency magnetic field B1 orientated transverse to the quasistatic magnetic field B0 parallel to the z-axis of the bore of a MRI or NMR device by transforming an incident pulse of radiofrequency electromagnetic waves. The generated pulse having magnetic field intensity sufficient to excite a detectable magnetic resonance in magnetically active nuclei located within at least a portion of an examination region located within the bore. The apparatus includes a radiofrequency electromagnetic wave conducting structure configured to distribute a received pulse of radiofrequency electromagnetic waves as an incident pulse of radiofrequency electromagnetic waves to the at least two artificially structured electromagnetic unit cells.

公开(公告)号：US09871291B2

公开(公告)日：2018-01-16

申请号：US14257386

申请日：2014-04-21

Applicant: Elwha LLC

Inventor： Pai-Yen Chen ,  Tom Driscoll ,  Siamak Ebadi ,  John Desmond Hunt ,  Nathan Ingle Landy ,  Melroy Machado ,  Milton Perque, Jr. ,  David R. Smith ,  Yaroslav A. Urzhumov

IPC: H01F27/42 ,  H01F37/00 ,  H01F38/00 ,  H01Q3/00 ,  H01Q3/24 ,  H01Q3/46 ,  H01Q15/14

CPC classification number: H01Q3/00 ,  H01Q3/247 ,  H01Q3/46 ,  H01Q15/002 ,  H01Q15/148 ,  H01Q19/067 ,  H02J50/23 ,  H02J50/60 ,  H02J50/80

Abstract: Described embodiments include a system, method, and apparatus. A system includes an antenna comprising a sub-Nyquist holographic aperture configured to define selectable arbitrary complex radiofrequency electromagnetic fields on a surface of the antenna. A path analysis engine tests power transmission pathways from the antenna to a target device located in an environment within a space radiateable by the antenna. The environment includes a human being. An optimization circuit selects responsive to the tested power transmission pathways a power transmission regime. The regime includes an electromagnetic radiation pattern shaped to transfer radiofrequency electromagnetic power from the antenna to the target device without exceeding a radiation exposure limit for humans. A gain definition circuit selects a complex radiofrequency electromagnetic field implementing the selected power transmission regime from the at least two selectable, complex radiofrequency electromagnetic fields. An antenna controller defines the selected arbitrary complex radiofrequency electromagnetic field in the sub-Nyquist holographic aperture.