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公开(公告)号：US10236574B2
公开(公告)日：2019-03-19
申请号：US14257187
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: H01Q3/00 , H02J50/23 , H02J50/60 , H01Q19/06 , H01Q15/00 , H02J50/80 , H01Q15/14 , H01Q3/46 , H01Q3/24
Abstract: Described embodiments include an antenna and a method. In an embodiment, the antenna includes a holographic aperture having a surface including a plurality of individual electromagnetic wave scattering elements distributed thereon with a periodic inter-element spacing equal to or less than one-half of a free space wavelength of an operating frequency of the antenna. The aperture is configured to define at least two selectable complex radiofrequency electromagnetic fields on the surface with tangential wavenumbers up to 2π over the aperture element spacing (k_apt=2π/a). In an embodiment, the holographic aperture includes an amplitude and phase modulation holographic aperture. In an embodiment, each electromagnetic wave scattering element has a respective electronically controllable electromagnetic response to an incident radiofrequency electromagnetic wave, and the plurality of individual electromagnetic wave scattering elements are electronically controllable in combination to define the at least two selectable complex radiofrequency electromagnetic fields on the surface.
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公开(公告)号：US09570812B2
公开(公告)日：2017-02-14
申请号：US14638961
申请日：2015-03-04
Applicant: Elwha LLC
Inventor： Tom Driscoll , John Desmond Hunt , Nathan Ingle Landy , David R. Smith , Yaroslav A. Urzhumov
IPC: G03H1/08 , H01Q19/02 , G03H5/00 , G02B5/32 , G02B1/00 , G03H1/04 , B33Y10/00 , B33Y50/00 , B33Y80/00
CPC classification number: H01Q19/02 , B29C64/386 , B33Y10/00 , B33Y50/00 , B33Y80/00 , G02B1/002 , G02B5/32 , G03H1/0476 , G03H1/0808 , G03H5/00
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 input electromagnetic field pattern from a first mode to a second mode to attain a target electromagnetic field pattern (near or far) that is different from the input electromagnetic field pattern. A solution to a holographic equation provides a sufficiently accurate approximation of a distribution of dielectric constants that can be used in conjunction with an electromagnetic radiation device with a known output field pattern to attain a target field pattern. A voxel-based discretization of the distribution of dielectric constants can be used to generate the mode converting structure and/or to facilitate the optimization algorithms. One or more optimization algorithms can be used to improve the efficiency of the mode conversion.
Abstract translation: 本公开提供了与用于电磁场修改的模式转换相关联的系统和方法。 模式转换结构（全息超材料）形成为具有选择的介电常数分布，以将输入电磁场图案从第一模式转换为第二模式，以获得与输入不同的目标电磁场图案（近或远） 电磁场模式。 全息方程式的解决方案提供了足够精确的介电常数分布的近似值，该介电常数的分布可与具有已知输出场模式的电磁辐射装置结合使用以获得目标场模式。 可以使用基于体素的介电常数分布的离散化来生成模式转换结构和/或促进优化算法。 可以使用一种或多种优化算法来提高模式转换的效率。
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公开(公告)号：US20160327745A1
公开(公告)日：2016-11-10
申请号：US14708043
申请日：2015-05-08
Applicant: Elwha LLC
Inventor： Tom Driscoll , John Desmond Hunt , Nathan Ingle Landy , David R. Smith , Yaroslav A. Urzhumov
CPC classification number: H01P1/16 , G02B1/002 , G02B5/32 , G02B6/00 , G02B6/2848 , G02B27/286 , G03H1/0005 , G03H1/0808 , H01P5/022 , H01P5/19 , H01P5/20 , H01P5/222 , H01Q1/42 , H01Q13/02 , H01Q13/06 , H01Q15/02 , H01Q19/062 , H01Q19/067
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.
Abstract translation: 本公开提供了与用于电磁场修改的模式转换相关联的系统和方法。 模式转换结构（全息超材料）形成为具有选择的介电常数分布，以将电磁辐射图从第一模式转换为第二模式，以获得不同于输入电磁辐射图的目标电磁辐射图。 全息方程式的解决方案提供了可用于形成用于一个或多个传输线（例如波导）的模式转换装置的介电常数分布的足够精确的近似。 可以使用一种或多种优化算法来提高模式转换的效率。
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4.发明申请公开(公告)号：US20150276928A1
公开(公告)日：2015-10-01
申请号：US14485316
申请日：2014-09-12
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
CPC classification number: H01Q19/10 , G01S13/887 , H01Q3/24
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 circuitry may be configured to set a series of conditions corresponding to the array to produce the series of beam patterns, and to produce an image of an object that is illuminated by the series of beam patterns.
Abstract translation: 散射和/或反射器天线的阵列被配置成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，电路可以被配置为设置与阵列相对应的一系列条件以产生一系列波束图案，并且产生由一系列波束图案照明的物体的图像。
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公开(公告)号：US10833380B2
公开(公告)日：2020-11-10
申请号：US16293444
申请日：2019-03-05
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 , G03H1/00 , G03H1/08 , G02B6/00 , 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.
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Patent Agency Ranking
公开(公告)号：US20180131060A1
公开(公告)日：2018-05-10
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
CPC classification number: H01P1/16 , G02B1/002 , G02B5/32 , G02B6/00 , G02B6/2848 , G02B27/286 , G03H1/0005 , G03H1/0808 , H01P5/022 , H01P5/19 , H01P5/20 , H01P5/222 , H01Q1/42 , H01Q13/02 , H01Q13/06 , H01Q15/02 , H01Q19/062 , H01Q19/067
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.
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公开(公告)号：US09711831B2
公开(公告)日：2017-07-18
申请号：US14708043
申请日：2015-05-08
Applicant: Elwha LLC
Inventor： Tom Driscoll , John Desmond Hunt , Nathan Ingle Landy , David R. Smith , Yaroslav A. Urzhumov
CPC classification number: H01P1/16 , G02B1/002 , G02B5/32 , G02B6/00 , G02B6/2848 , G02B27/286 , G03H1/0005 , G03H1/0808 , H01P5/022 , H01P5/19 , H01P5/20 , H01P5/222 , H01Q1/42 , H01Q13/02 , H01Q13/06 , H01Q15/02 , H01Q19/062 , H01Q19/067
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.
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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
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。
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公开(公告)号：US20190273298A1
公开(公告)日：2019-09-05
申请号：US16293444
申请日：2019-03-05
Applicant: Elwha LLC
Inventor： TOM DRISCOLL , John Desmond Hunt , Nathan Ingle Landy , David R. Smith , Yaroslav A. Urzhumov
IPC: H01P1/16 , G02B1/00 , G02B6/00 , G02B6/28 , G02B27/28 , H01Q19/06 , H01Q15/02 , G02B5/32 , G03H1/00 , G03H1/08
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.
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公开(公告)号：US09935375B2
公开(公告)日：2018-04-03
申请号：US14102253
申请日：2013-12-10
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
CPC classification number: H01Q15/006 , H01Q3/44 , H01Q3/46 , H01Q15/0086
Abstract: A surface scattering reflector antenna includes a plurality of adjustable scattering elements and is configured to produce a reflected beam pattern according to the configuration of the adjustable scattering elements.
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