Refracting Means And Radio Wave Energy Filters (e.g., Lenses And Polarizers) Patents (Class 343/909)
  • Patent number: 10983194
    Abstract: A method for providing control of surface waves propagating on a surface includes forming a surface treatment on the surface, wherein the surface treatment is configured to achieve a tensor surface admittance distribution matrix on the surface determined according to a modified transformation electromagnetics (tEM) equation.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: April 20, 2021
    Assignee: HRL Laboratories, LLC
    Inventors: Amit M. Patel, Adour V. Kabakian
  • Patent number: 10944179
    Abstract: Orbital angular momentum (OAM) communications systems provide an additional degree of freedom to the electromagnetic waves that travel between the transmission and receiving stations, thereby enabling a dramatic increase in data transmission rates. The present invention provides a design for a very low reflectivity flat spiral phase plate that generates OAM modes and a method of making the same. The design incorporates variable sizes of perforated unit cells and may include matched layers to provide improved impedance matching, and the flat disc shape makes the phase plate compact and easy to install. The OAM phase plate can be designed to operate at frequencies from a few 100s KHz to ultraviolet frequencies and is capable of providing one or more OAM modes at the operational frequencies, irrespective of polarization. In a preferred embodiment, the OAM phase plate is designed for operation at about 30 GHz frequency, with 20 GHz bandwidth.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: March 9, 2021
    Inventors: Ashutosh Patri, Patanjali V. Parimi, Michael Kolacki
  • Patent number: 10935666
    Abstract: There is provided a positioning system that comprises a GPS device including a GPS receiver arranged to receive GPS satellite signals from a plurality of GPS satellites and an attenuation device arranged to attenuate GPS satellite signals such that when a GPS satellite is located in a first portion of sky the GPS satellite signals received by the GPS receiver from said GPS satellite are attenuated. A storage is provided to store satellite location information for the plurality of GPS satellites over time at a location of the GPS receiver, and a controller is provided to determine location information of the GPS device based on received GPS information from the GPS device, wherein the received GPS information comprises information on signal strengths of the GPS satellite signals received by the GPS receiver.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: March 2, 2021
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Maurice Herman Johan Draaijer, Paulus Henricus Antonius Damink
  • Patent number: 10916845
    Abstract: A system includes a distributed ledger storing one or more smart contracts; one or more 5G small cells, each having one or more antennas mounted on a housing, each small cell sending packets of data trackable with the distributed ledger; and a processor to control a directionality of the antennas in communication with a predetermined target using 5G protocols.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: February 9, 2021
    Inventor: Bao Tran
  • Patent number: 10871352
    Abstract: Provided are systems and methods for cloaking an object on a ground plane. A thin dielectric metasurface is used to reshape the wavefronts distorted by the object in order to mimic the reflection pattern of a flat ground plane. To achieve such “carpet cloaking”, the reflection angle is made equal to the incident angle everywhere on the object by providing a graded metasurface with a designed phase gradient. This provides additional phase to the wavefronts to compensate for the phase difference amongst lightpaths induced by the geometrical distortion. One exemplary metasurface is described which is designed for the microwave range using highly sub-wavelength dielectric resonators. The approach can be applied to hide any scatterer under a metasurface of class C1 (first derivative continuous) on a groundplane not only in the microwave regime, but also at other frequencies, including higher frequencies, up to the visible.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: December 22, 2020
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Boubacar Kante, Li-Yi Hsu
  • Patent number: 10811771
    Abstract: A system includes a distributed ledger storing one or more smart contracts; one or more 5G small cells, each having one or more antennas mounted on a housing, each small cell sending packets of data trackable with the distributed ledger; and a processor to control a directionality of the antennas in communication with a predetermined target using 5G protocols.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: October 20, 2020
    Inventor: Bao Tran
  • Patent number: 10777882
    Abstract: There is provided a radar apparatus comprising: a substrate; multiple antenna elements mounted on the substrate; and a signal-coupling suppressor disposed between the multiple antenna elements.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: September 15, 2020
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Jeong Hoon Cho, Dong Gun Kam, Man Seok Kwon
  • Patent number: 10703877
    Abstract: Flexible substrates including a polymer selected from a thermoplastic polymer, a thermoset polymer, and/or a polymer blend, and ferroelectric perovskite-type oxide particles dispersed in the polymer, where the ferroelectric perovskite-type oxide has a dielectric constant that varies with applied voltage. The flexible substrates can be used in tunable electronics.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: July 7, 2020
    Assignee: University of Massachusetts
    Inventors: Alkim Akyurtlu, Joey L. Mead, Carol M. F. Barry, Mahdi Haghzadeh, Artee Panwar, Mary K. Herndon
  • Patent number: 10686249
    Abstract: An antenna device is designed to be connected to a printed-circuit board having a feeding part and a board ground. The antenna device includes a feed antenna, an antenna ground having a plate shape, an artificial magnetic conductor having a plate shape and being formed between the feed antenna and the antenna ground, a first connection connecting the feed antenna with the feeding part by passing through the antenna ground and the artificial magnetic conductor, and a second connection connecting the antenna ground with the board ground. The artificial magnetic conductor is not connected to the first connection and the second connection.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: June 16, 2020
    Assignee: Panasonic Intellectual Property Management Co. Ltd.
    Inventor: Taichi Hamabe
  • Patent number: 10620343
    Abstract: A metamaterial for an electromagnetic wave filter includes a substrate; and a film disposed on the substrate and having a set of slots arranged to form a rotationally symmetric pattern, which is patterned in an intaglio shape, or a set of structures arranged to form a rotationally symmetric pattern, which is patterned in an embossed shape, to control a transmission rate according to polarization of an electromagnetic wave incident on the film. The set of slots or the set of structures have an array angle that is determined such that the transmission rate and a reflectivity thereof have constant values according to the polarization of the electromagnetic wave incident on the film, and have a chloroplast molecular structure pattern in which the set of slots or the set of structures are arranged in pentagonal and hexagonal shapes.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: April 14, 2020
    Assignee: Korea Institute of Science and Technology
    Inventors: Minah Seo, Sanghun Lee, Deokha Woo, Jaehun Kim, Taikjin Lee, Jaebin Choi, Chulki Kim, Joo-Hiuk Son, Young Min Jhon
  • Patent number: 10594029
    Abstract: Embodiments of the invention include a reconfigurable communication system, that includes a substrate and a metamaterial shield formed over the substrate. In an embodiment, the metamaterial shield surrounds one or more components on the substrate. Additionally, a plurality of first piezoelectric actuators may be formed on the substrate. The first piezoelectric actuators may be configured to deform the metamaterial shield and change a frequency band that is permitted to pass through the metamaterial shield. Embodiments may also include a reconfigurable antenna that includes a metamaterial. In an embodiment, a plurality of second piezoelectric actuators may be configured to deform the metamaterial of the antenna and change a central operating frequency of the antenna. Embodiments may also include an integrated circuit electrically coupled to the plurality of first piezoelectric actuators and second piezoelectric actuators.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: March 17, 2020
    Assignee: Intel Corporation
    Inventors: Shawna M. Liff, Adel A. Elsherbini, Sasha N. Oster, Feras Eid, Georgios C. Dogiamis, Thomas L. Sounart, Johanna M. Swan
  • Patent number: 10594034
    Abstract: A system includes a distributed ledger storing one or more smart contracts; one or more 5G small cells, each having one or more antennas mounted on a housing, each small cell sending packets of data trackable with the distributed ledger; and a processor to control a directionality of the antennas in communication with a predetermined target using 5G protocols.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: March 17, 2020
    Inventor: Bao Tran
  • Patent number: 10490346
    Abstract: Integrated antenna structures described herein include, as one example, a multi-layered printed circuit board (PCB), including an artificial magnetic conductor (AMC) cell that includes a backing metal layer defining a first inner layer of the multi-layered PCB and an AMC metal layer defining a second inner layer of the multi-layered PCB. The metal layer defining the second inner layer is separated from at least one edge of the multi-layered PCB, and a planar inverted F antenna (PIFA) surrounds the AMC cell. The AMC metal layer is configured to reflect energy radiated by the PIFA. In some embodiments, the energy radiated by the PIFA includes radio frequency waves that can be used by a receiver to power or charge an electronic device.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: November 26, 2019
    Assignee: Energous Corporation
    Inventor: Harry Contopanagos
  • Patent number: 10490893
    Abstract: An optically-fed tightly-coupled array (TCA) antenna comprises a plurality of photodiodes and antennas. Each photodiode may receive an optical signal from an optical fiber and convert the optical signal into an RF driving signal to drive a corresponding antenna to which it is connected. Each photodiode may be connected to the antenna. In some examples, the TCA is capable of ultra-wideband operation ranging from 2-12 GHz and wide beam-steering capability up to 40° from the broadside. Inductance peaking and resistance matching may be employed.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: November 26, 2019
    Assignee: Phase Sensitive Innovations, Inc.
    Inventors: Shouyuan Shi, Jian Bai, Chris Schuetz, Garrett Schneider, Dennis Prather
  • Patent number: 10446927
    Abstract: The present invention is a metamaterial-based object detection system. An intelligent antenna metamaterial interface (IAM) associates specific metamaterial unit cells into sub-arrays to adjust the beam width of a transmitted signal. The IAM is part of a sensor fusion system that coordinates a plurality of sensors, such as in a vehicle, to optimize performance. In one embodiment, an MTM antenna structure is probe-fed to create a standing wave across the unit cells.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: October 15, 2019
    Assignee: Metawave Corporation
    Inventor: Maha Achour
  • Patent number: 10446907
    Abstract: An antenna assembly including a planar antenna formed on a dielectric substrate and a frequency selective impedance surface formed on the substrate and at least partially surrounding the antenna. The frequency selective impedance surface receives surface waves propagating along the dielectric substrate generated by the antenna, where the impedance surface mitigates negative effects of the surface waves by converting the surface wave energy into leaky-wave radiation, and also possibly providing some control of the radiation gain pattern of the antenna. In one embodiment, the dielectric substrate is vehicle glass, such as a vehicle windshield.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: October 15, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Amit M. Patel, Timothy J. Talty, Hyok Jae Song, Keerti S. Kona, James H. Schaffner, Duane S. Carper, Eray Yasan
  • Patent number: 10439292
    Abstract: Electromagnetic shielding systems, apparatuses, and method are provided. One apparatus is an example free-space absorber metamaterial that includes a first array of patches disposed at a first plane, a conductive backplane disposed at a structural surface plane, and a first dielectric spacer disposed between the first array of patches and the conductive backplane. A first bandwidth of absorption for the free-space absorber metamaterial may be based on the area of a patch in the first array of patches, the first electrical resistance of a patch in the first array of patches, and the first gap distance taken between the first array of patches and the conductive backplane.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: October 8, 2019
    Assignee: The Johns Hopkins University
    Inventors: Kenneth R. Grossman, Joseph A. Miragliotta, Adam J. Maisano, Douglas B. Trigg, Steven M. Storck
  • Patent number: 10431897
    Abstract: The present invention features a microwave gain medium having a negative refractive index, which overcompensates for loss exhibited in conventional passive metamaterials. The design consists of sub-wavelength building blocks with embedded microwave tunnel diodes exhibiting a negative refractive index and a stable net gain. The negative resistance may also be used for dispersion compensation that may enable broadband response of metamaterials.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: October 1, 2019
    Assignee: ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA
    Inventors: Hao Xin, Qi Tang, Adnan Kantemur
  • Patent number: 10422895
    Abstract: Passive components adapted for integration with at least one active semiconductor device, in an embodiment, comprise at least one metallic structure dimensioned and arranged to absorb and/or reflect a major fraction of incident electromagnetic radiation received at one or more wavelengths of a first group of wavelengths. This prevents radiation within the first group of wavelengths from being received and/or processed by the at least one active device. In an embodiment, one or more metallic structures are dimensioned and arranged to direct an amount of incident radiation, received at one or more wavelengths of a second group of wavelengths, sufficient to enable receiving or processing of incident radiation within the second group of wavelengths by the at least one active semiconductor device. In some embodiments, the passive component comprises a passive optical filter for use in spectroscopic applications, and the active semiconductor device is a detector or sensor.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: September 24, 2019
    Assignee: The Trustees of Princeton University, Office of Technology and Trademark Licensing
    Inventors: Lingyu Hong, Kaushik Sengupta
  • Patent number: 10297900
    Abstract: According to various embodiments of the present disclosure, an electronic device may include: an array antenna including a plurality of first radiating conductors that transmit or receive a wireless signal in a first frequency band and are arranged on a circuit board; and a lens unit including at least one lens disposed on a housing of the electronic device to correspond to the first radiating conductors. The lens unit may refract or reflect a wireless signal transmitted/received through each of the first radiating conductors. The electronic device as described above may be variously implemented according to embodiments. For example, a portion of the lens unit may transmit/receive a wireless signal in a frequency band that is different from the frequency band of the wireless signal transmitted/received by the first radiating conductors.
    Type: Grant
    Filed: January 7, 2017
    Date of Patent: May 21, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Ju Lee, Seung-Tae Ko, Hyun-Jin Kim
  • Patent number: 10199738
    Abstract: An electromagnetic device includes: a first medium having a first material having a first dielectric constant, the first medium having a plurality of spaces filled with a second material having a second dielectric constant that is different from the first dielectric constant; and a plurality of antennas disposed proximate the first medium; wherein adjacent ones of the plurality of spaces of the first medium have an average spacing therebetween of less than one quarter of an operating wavelength of at least one of the plurality of antennas.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: February 5, 2019
    Assignee: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Raymond C. Rumpf, Cesar R. Garcia
  • Patent number: 10165674
    Abstract: A circuit board includes a dielectric layer, a conductive layer disposed on a surface of the dielectric layer, and an electromagnetic bandgap (EBG) structure disposed in the dielectric layer. The electromagnetic bandgap structure includes a via and a signal suppression board. Two opposite ends of the via are respectively connected to the electrically conductive layer and the signal suppression board respectively. The signal suppression board has at least one hollow pattern.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: December 25, 2018
    Assignees: INVENTEC (PUDONG) TECHNOLOGY CORPORATION, INVENTEC CORPORATION
    Inventors: Chih-Cheng Li, Yung-Chin Hsieh
  • Patent number: 10069207
    Abstract: Disclosed herein is an antenna for WAVE communication, and more particularly, is an antenna for WAVE communication to which an electromagnetic bandgap is applied to a patch antenna. The antenna includes a dielectric substrate provided with conduction patterns formed on opposite surfaces thereof, first patches disposed on a first surface of the dielectric substrate at positions spaced apart from each other at regular intervals and conducted to each other, second patches disposed on a second surface of the dielectric substrate at positions spaced apart from each other at regular intervals and conducted to each other; a third patch provided in a bottom of the second surface of the dielectric substrate and conducted to the plurality of second patches, and a plurality of electromagnetic bandgap structures positioned on the first surface of the dielectric substrate and conducted to the second patches or the third patch by a through hole.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: September 4, 2018
    Assignee: INFAC ELECS CO., LTD.
    Inventors: Tae Hoon Yang, Jin Kyu Hwang
  • Patent number: 10014584
    Abstract: An antenna capable of being joined to an antenna feed perpendicular to a ground plane includes a conductive radiator and a cylindrical shell. The conductive radiator is tubular and has a longitudinal slot along the entire length thereof. The slot is parallel to the radiator's axis. The antenna feed can be connected across the slot. A cylindrical shell of a uniaxial dielectric material is provided outside and spaced apart from the conductive radiator and extends beyond ends of the conductive radiator. The cylindrical shell electrically contacts the ground plane. The shell is made from a material having a dielectric tensor with high impedance in the axial direction. This antenna gives enhanced bandwidth over ordinary slotted antennas. The shell can be applied to preexisting antennas.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: July 3, 2018
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: David A Tonn
  • Patent number: 9935374
    Abstract: A multi-band antenna includes a circuit board having an insulation dielectric layer, a first ground plane and an impedance matching circuit formed on a first plane of the circuit board, and a second ground plane formed on a second plane of the circuit board. A slot antenna radiation main body, formed at a location of the second ground plane and corresponding to the exposed part of the insulation dielectric layer, includes first and second radiation main bodies. The first radiation main body includes a first impedance matching part and a first resonance part. The second radiation main body includes a second impedance matching part and a second resonance part. The first resonance part includes a plurality of first bends, a first segment, and a second segment. The second resonance part includes a plurality of second bends, a third segment, and a fourth segment.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: April 3, 2018
    Assignee: Arcadyan Technology Corporation
    Inventor: Jing-Teng Chang
  • Patent number: 9847583
    Abstract: Systems according to the present disclosure provide one or more surfaces that function as power transferring surfaces for which at least a portion of the surface includes or is composed of “fractal cells” placed sufficiently closed close together to one another so that a surface (plasmonic) wave causes near replication of current present in one fractal cell in an adjacent fractal cell. A fractal of such a fractal cell can be of any suitable fractal shape and may have two or more iterations. The fractal cells may lie on a flat or curved sheet or layer and be composed in layers for wide bandwidth or multibandwidth transmission.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: December 19, 2017
    Inventor: Nathan Cohen
  • Patent number: 9793720
    Abstract: A near-field plate is a non-periodically patterned surface that can overcome the diffraction limit and confine electromagnetic fields to subwavelength dimensions. By controlling the interference of the electromagnetic fields radiated by the near-field plate with that of a source, the near-field plate can form a subwavelength near-field pattern in a forward direction, while suppressing fields in other directions, such as those reflected. The resulting unidirectional near-field plate may find utility in many applications such as high resolution imaging and probing, high density data storage, biomedical targeting devices, and wireless power transfer.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: October 17, 2017
    Assignee: THE REGENTS OF THE UNIVERSITY OF MICHIGAN
    Inventors: Anthony Grbic, Steve Young
  • Patent number: 9768516
    Abstract: Complementary metamaterial elements provide an effective permittivity and/or permeability for surface structures and/or waveguide structures. The complementary metamaterial resonant elements may include Babinet complements of “split ring resonator” (SRR) and “electric LC” (ELC) metamaterial elements. In some approaches, the complementary metamaterial elements are embedded in the bounding surfaces of planar waveguides, e.g. to implement waveguide based gradient index lenses for beam steering/focusing devices, antenna array feed structures, etc.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: September 19, 2017
    Assignee: Duke University
    Inventors: David R. Smith, Ruopeng Liu, Tie Jun Cui, Qiang Cheng, Jonah N. Gollub
  • Patent number: 9726989
    Abstract: A spectral purity filter includes a body of material, through which a plurality of apertures extend. The apertures are arranged to suppress radiation having a first wavelength and to allow at least a portion of radiation having a second wavelength to be transmitted through the apertures. The second wavelength of radiation is shorter than the first wavelength of radiation. The body of material is formed from a material having a bulk reflectance of substantially greater than or equal to 70% at the first wavelength of radiation. The material has a melting point above 1000° C.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: August 8, 2017
    Assignee: ASML NETHERLANDS B.V.
    Inventors: Wouter Anthon Soer, Vadim Yevgenyevich Banine, Erik Roelof Loopstra, Andrei Mikhailovich Yakunin, Martin Jacobus Johan Jak
  • Patent number: 9653767
    Abstract: A waveguide structure including a plurality of unit structures, each of which at least includes a first conductive plane and a second conductive plane, which are arranged to partially face with each other, a plurality of transmission lines with one ends being open ends, which are disposed in a plane, positioned opposite to the second conductive plane, in a layer different from the first conductive plane and the second conductive plane, and at least one conductive via, which electrically connect between the first conductive plane and other ends of the transmission lines.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: May 16, 2017
    Assignee: NEC CORPORATION
    Inventors: Hiroshi Toyao, Noriaki Ando
  • Patent number: 9614288
    Abstract: A device (10) for receiving and/or emitting an electromagnetic wave, comprising a medium (11) of dielectric material, a plurality of passive resonant elements (12) incorporated inside said medium, the plurality of passive resonant elements (12) comprising a frequency band-gap, two neighbor passive resonant elements belonging to the plurality being spaced apart from each other of a first distance lower than ?/4, and at least one active resonant element (13) incorporated inside said plurality, said active resonant element (13) having a second structure different from a first structure of the passive resonant elements (12), so that said active resonant element (13) has at least a second resonance frequency comprised inside the frequency band-gap of said plurality of passive elements (12).
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: April 4, 2017
    Assignees: TIME REVERSAL COMMUNICATIONS, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)
    Inventors: Geoffroy Lerosey, Christian Leray, Fabrice Lemoult, Julien De Rosny, Arnaud Tourin, Mathias Fink
  • Patent number: 9601836
    Abstract: A front feed microwave antenna, which comprises a radiation source, a first metamaterial panel used for radiating an electromagnetic wave emitted by the radiation source, a second metamaterial panel, and a reflective panel affixed to the back of the first metamaterial panel. The electromagnetic wave is emitted via the first metamaterial panel, refracted by entering the second metamaterial panel, reflected by the reflective panel, and finally re-refracted by reentering the second metamaterial panel, then finally parallel-emitted.
    Type: Grant
    Filed: November 24, 2011
    Date of Patent: March 21, 2017
    Assignee: KUANG-CHI INNOVATIVE TECHNOLOGY LTD.
    Inventors: Ruopeng Liu, Chunlin Ji, Yutao Yue, Xiaoming Yin
  • Patent number: 9594262
    Abstract: First and second coherent light beams of the same wavelength are propagated in opposite directions to interact on a sub-wavelength thickness metallic metamaterial layer which is structured with a periodicity such that there is a resonance matched to the wavelength of the coherent beams. The first beam is then able to modulate the intensity of the second beam by modulating the phase and/or intensity of the first beam. The interference of the counter- propagating beams can eliminate or substantially reduce Joule loss of light energy in the metamaterial layer or, on the contrary, can lead to a near total absorption of light, depending on the mutual phase and/or intensity of the interacting beams. A modulation is thus provided without using a non-linear effect.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: March 14, 2017
    Assignee: University of Southampton
    Inventors: Nikolay Ivanovich Zheludev, Kevin Francis MacDonald, Jianfa Zhang, David John Richardson
  • Patent number: 9568619
    Abstract: Passive components adapted for integration with at least one active semiconductor device, in an embodiment, comprise at least one metallic structure dimensioned and arranged to absorb and/or reflect a major fraction of incident electromagnetic radiation received at one or more wavelengths of a first group of wavelengths. This prevents radiation within the first group of wavelengths from being received and/or processed by the at least one active device. In an embodiment, one or more metallic structures are dimensioned and arranged to direct an amount of incident radiation, received at one or more wavelengths of a second group of wavelengths, sufficient to enable receiving or processing of incident radiation within the second group of wavelengths by the at least one active semiconductor device. In some embodiments, the passive component comprises a passive optical filter for use in spectroscopic applications, and the active semiconductor device is a detector or sensor.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: February 14, 2017
    Assignee: The Trustees of Princeton University Office of Technology and Trademark Licensing
    Inventors: Lingyu Hong, Kaushik Sengupta
  • Patent number: 9397406
    Abstract: An artificial magnetic conductor having a surface impedance greater than 100?, includes a ground plane, and a frequency-selective surface that is transparent for certain wavelengths and reflective for a range of wavelengths. The frequency-selective surface includes an array of conductive resonant elements arranged alongside one another in at least two different directions parallel to the ground plane. Each of these conductive resonant elements includes a sub-layer of ferromagnetic material having a relative permeability greater than 10 at a frequency of 2 GHz and having a thickness less than the skin thickness of the ferromagnetic material.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: July 19, 2016
    Assignee: Commissariat a l'energie atomique et aux energies alternatives
    Inventors: Francois Grange, Christophe Delaveaud, Bernard Viala
  • Patent number: 9385435
    Abstract: Surface scattering antennas provide adjustable radiation fields by adjustably coupling scattering elements along a wave-propagating structure. In some approaches, the scattering elements are patch elements. In some approaches, the scattering elements are made adjustable by disposing an electrically adjustable material, such as a liquid crystal, in proximity to the scattering elements. Methods and systems provide control and adjustment of surface scattering antennas for various applications.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: July 5, 2016
    Inventors: Adam Bily, Jeff Dallas, Russell J. Hannigan, Nathan Kundtz, David R. Nash, Ryan Allan Stevenson
  • Patent number: 9350082
    Abstract: A dual-band monopole coupling antenna is disclosed, which comprises: a first radiation part, configured with a frame and an extension section while being disposed on a surface of a substrate; a second radiation part, disposed on the surface of the substrate at a position neighboring to the first radiation part for enabling a coupling effect between the two, allowing the second radiation part to be used as an extension of the first radiation part, and thus adjusting the operation frequency, impedance and impedance matching accordingly; a signal ground section, disposed coupling to the second radiation part; a signal feed-in section, disposed on the surface at a position neighboring to the signal ground section while coupling to the first radiation part; a ground, disposed coupling to the second radiation part; and a dielectric layer, disposed at an non-conductive area arranged between the first radiation part and the second radiation part.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: May 24, 2016
    Assignee: ARCADYAN TECHNOLOGY CORPORATION
    Inventors: Chih-Yung Huang, Kuo-Chang Lo
  • Patent number: 9329261
    Abstract: Methods and systems for dynamic control of output power of a leaky wave antenna (LWA) are disclosed and may include configuring one or more LWAs in a wireless device to transmit RF signals at a desired frequency. The LWAs may be integrated in support structures, including an integrated circuit, an integrated circuit package, and/or a printed circuit board. Impedances that are coupled to the LWAs and to a power amplifier enabled to amplify the RF signals may be dynamically configured. A resonant frequency of the LWAs may be tuned, which may be configured to transmit the RF signals at a desired angle from a surface of the support structure. The LWAs may include microstrip or coplanar waveguides where a cavity height of the LWAs may be configured by controlling spacing between conductive lines in the waveguides. The impedances may include capacitor arrays and/or inductors in the support structures.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: May 3, 2016
    Assignee: Broadcom Corporation
    Inventors: Ahmadreza Rofougaran, Maryam Rofougaran
  • Patent number: 9310520
    Abstract: An optical material which has a relative permeability different from 1 to light having a wavelength in, for example, the infrared region or shorter than the infrared region and which is stable in structure, and a liquid and a solid (optical element) using the optical material. The optical material is a powder used as a component of a liquid or solid to which an illuminating light is irradiated, and includes a large number of resonating elements which constitute the powder and each of which is formed of a conductor having a width approximately same as or smaller than a wavelength of the illumination light, and a protective film which is formed of a disc-shaped insulator, wherein an entire surface of each of the split-ring resonators is covered by the protective film.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: April 12, 2016
    Assignee: NIKON CORPORATION
    Inventors: Soichi Owa, Shunji Watanabe, Junji Suzuki, Kazuhiro Kido, Hidemitsu Toba
  • Patent number: 9257743
    Abstract: A system including a first dielectric layer comprising a solid material configured to form a first layer of a radome, and a second dielectric layer comprising a solid material configured to form a second layer of the radome. The first dielectric layer and the second dielectric layer are spaced apart to provide an inner gap configured as a third layer of the radome. The inner gap is exclusively filled with a gas. The radome is configured to provide for the radome to be frequency selective. A radome and method are also disclosed.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: February 9, 2016
    Assignee: LOCKHEED MARTIN CORPORATION
    Inventor: Vernon T. Brady
  • Patent number: 9231291
    Abstract: An electromagnetic bandgap structure is provided, which includes a ground layer; a first power layer facing an upper portion of the ground layer with a dielectric interposed and comprising at least one first patch and at least one first branch; and a second power layer facing an upper portion of the first power layer with a dielectric interposed and comprising at least one second patch and at least one second branch.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: January 5, 2016
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Myunghoi Kim, Jin Ho Jo, Jae Hoon Kim
  • Patent number: 9219313
    Abstract: An apparatus includes an antenna having multiple layers. At least a first of the layers includes both an effective medium and an electromagnetic bandgap (EBG) medium. The antenna could include a ground plane and a feed line, and the first layer of the antenna can be located between the ground plane and the feed line. The antenna could also include a slot ground and a planar antenna structure, and the first layer of the antenna could be located between the slot ground and the planar antenna structure. The antenna could further include a first substrate between a feed line and a slot ground and a second substrate covering a planar antenna structure, and the first layer could include one of the first and second substrates.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: December 22, 2015
    Assignee: Honeywell International Inc.
    Inventors: Ion Georgescu, Cazimir G. Bostan, Fouad Nusseibeh
  • Patent number: 9178284
    Abstract: The present disclosure relates to an electromagnetically transparent metamaterial, which comprises a substrate and a plurality of man-made metal microstructures arranged periodically inside the substrate. When an electromagnetic wave propagates through the metamaterial, each of the man-made metal microstructures is equivalent to two identical two-dimensional (2D) circuits, which are placed respectively in a direction perpendicular to an incident direction of the electromagnetic wave and in a direction parallel to the incident direction of the electromagnetic wave, and each of which comprises an inductor branch and two identical capacitor branches that are symmetrically connected in parallel with the inductor branch. The 2D circuits are associated with a waveband of the electromagnetic wave so that both a dielectric constant and a magnetic permeability of the metamaterial are substantially 1 when the electromagnetic wave propagates through the metamaterial.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: November 3, 2015
    Assignees: KUSNG-CHI INNOVATIVE TECHNOLOGY LTD., KUANG-CHI INSTITUTE OF ADVANCED TECHNOLOGY
    Inventors: Ruopeng Liu, Zhen Liao, Lin Luan, Zhiya Zhao
  • Patent number: 9178273
    Abstract: An antenna is integrated with a solar battery. The antenna has a radiation-element portion arranged above the solar battery. The radiation-element portion is made of metallic wire rods and formed in a net-like fashion.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: November 3, 2015
    Assignee: DENSO CORPORATION
    Inventor: Seishin Mikami
  • Patent number: 9166302
    Abstract: Arrangement of resonators in an aperiodic configurations are described, which can be used for electromagnetic cloaking of objects. The overall assembly of resonators, as structures, do not all repeat periodically and at least some of the resonators are spaced such that their phase centers are separated by more than a wavelength. The arrangements can include resonators of several different sizes and/or geometries arranged so that each size or geometry corresponds to a moderate or high “Q” response that resonates within a specific frequency range, and that arrangement within that specific grouping of akin elements is periodic in the overall structure. The relative spacing and arrangement of groupings can be defined by self similarity and origin symmetry. Fractal based scatters are described. Further described are bondary condition layer structures that can activate and deactive cloaking/lensing structures.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: October 20, 2015
    Assignee: Fractal Antenna Systems, Inc.
    Inventors: Nathan Cohen, Obinna Okoro, Phillip Salkind
  • Patent number: 9140234
    Abstract: Wind turbine rotor blades with a reduced radar cross sections include a shell having a leading edge opposite a trailing edge, a structural support member that supports the shell and is disposed internal the wind turbine rotor blade between the leading edge and the trailing edge and extends for at least a portion of a rotor blade span length, wherein the structural support member comprises carbon fiber, one or more cavities internal the wind turbine rotor blade, and a lightweight broadband radar absorbing filler material disposed in at least one of the one or more cavities to provide the reduced radar cross section.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: September 22, 2015
    Assignee: General Electric Company
    Inventors: Russell Craig Baucke, John Matthew Prescott, Lesly Sue Walters, Glen David Hilderbrand
  • Patent number: 9112475
    Abstract: An EBG (Electromagnetic Band Gap) structure according to an embodiment includes: an electrode that is made of a first conductor; a first insulating layer that is provided on the electrode; a patch unit that is provided in substantially parallel with the electrode on the first insulating layer, the patch unit including a first gap, the patch unit being made of a second conductor; a second insulating layer that is provided on the patch unit; a first via that is provided between the patch unit in the first insulating layer and the electrode and connected to the patch unit and the electrode; and a second via that is provided in the first and second insulating layers, the second via piercing the first gap and being connected to the electrode.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: August 18, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tadahiro Sasaki, Kazuhiko Itaya, Hiroshi Yamada
  • Patent number: 9093753
    Abstract: An artificial magnetic conductor includes a conductor layer, a ground layer, and a via. The conductor layer is formed in a first direction and includes a plurality of grid cells. The ground layer is formed in a second direction that is opposite to the first direction and generates a lower frequency than that of an artificial magnetic conductor including a plurality of grid cells having the same size as that of the plurality of grid cells of the conductor layer and a conductor plate having a form that is not modified. The via is formed between the conductor layer and the ground layer to electrically connect the conductor layer and the ground layer.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: July 28, 2015
    Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Young Bae Jung, Soon Young Eom, Soon Ik Jeon, Young Joong Yoon, Jihwan Ahn, Ji Hwan Yoon
  • Patent number: 9088075
    Abstract: Methods and systems for configuring a leaky wave antenna (LWA) utilizing micro-electromechanical systems (MEMS) are disclosed and may include configuring a resonant frequency of one or more LWAs in a wireless device utilizing MEMS actuation. RF signals may be communicated using the LWAs. The LWAs may be integrated in metal layers in a chip, an integrated circuit package, and/or a printed circuit board in the wireless device. The LWAs may include microstrip waveguides where a cavity height of the LWAs may be dependent on a spacing between conductive lines in the microstrip waveguides. The LWAs may be configured to transmit the wireless signals at a desired angle. The integrated circuit package may be affixed to a printed circuit board and an integrated circuit may be flip-chip-bonded to the integrated circuit package. An air gap may be integrated adjacent to one or more of the metal layers for the MEMS actuation.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: July 21, 2015
    Assignee: Broadcom Corporation
    Inventor: Ahmadreza Rofougaran
  • Patent number: 9035838
    Abstract: An antenna implementation comprises an electromagnetic lens and at least one electromagnetically shielding member. The electromagnetic lens is adapted to guide at least one electromagnetic signal by means of at least a variation in permittivity. The at least one electromagnetically shielding member encapsulates the electromagnetic lens partially so as to direct at least one electromagnetic signal propagating through the electromagnetic lens. The at least one electromagnetically shielding member can advantageously be part of an enclosure; said enclosure encapsulates partially the electromagnetic lens. The antenna can further comprise antenna transmission means that contain wave guides. Said waveguides can advantageously be incorporated into the enclosure. The antenna is particularly suited for implementations using Substrate Integrated Waveguide techniques. SIW techniques allow miniaturization of the antenna and offer the advantage of low energy consumption as may be required in portable devices.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: May 19, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Philippe Le Bars, Hervè Merlet, Mohammed Himdi, Olivier Lafond