IN2014DN10174A - - Google Patents

Info

Publication number
IN2014DN10174A
IN2014DN10174A IN10174DEN2014A IN2014DN10174A IN 2014DN10174 A IN2014DN10174 A IN 2014DN10174A IN 10174DEN2014 A IN10174DEN2014 A IN 10174DEN2014A IN 2014DN10174 A IN2014DN10174 A IN 2014DN10174A
Authority
IN
India
Prior art keywords
field patterns
scene
metamaterial
imager
patterns
Prior art date
Application number
Inventor
David R Smith
David Brady
Tom Driscoll
John Hunt
Matthew Reynolds
Daniel Marks
Alexander Mrozack
Original Assignee
Univ Duke
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univ Duke filed Critical Univ Duke
Publication of IN2014DN10174A publication Critical patent/IN2014DN10174A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/89—Radar or analogous systems specially adapted for specific applications for mapping or imaging
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
    • H01Q15/006—Selective devices having photonic band gap materials or materials of which the material properties are frequency dependent, e.g. perforated substrates, high-impedance surfaces
    • H01Q15/0066—Selective devices having photonic band gap materials or materials of which the material properties are frequency dependent, e.g. perforated substrates, high-impedance surfaces said selective devices being reconfigurable, tunable or controllable, e.g. using switches
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/887—Radar or analogous systems specially adapted for specific applications for detection of concealed objects, e.g. contraband or weapons
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
    • H01Q15/0086—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices having materials with a synthesized negative refractive index, e.g. metamaterials or left-handed materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/061—Two dimensional planar arrays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/22—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation in accordance with variation of frequency of radiated wave
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/24—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Aerials With Secondary Devices (AREA)
  • Studio Devices (AREA)

Abstract

Metamaterial devices and methods of using the same are disclosed. According to an aspect , a method comprises illuminating a scene with one or more illumination field patterns; observing the illuminated scene with one or more measurement field patterns; and reconstructing an image of the observed scene using a compressive imaging algorithm; wherein the illumination field patterns and/or the measurement field patterns correspond to radiation patterns of a metamaterial aperture antenna. The metamaterial aperture antenna is a leaky wave antenna on substrate. Therefore a compact imager can be built at low production cost. The imager avoids mechanical scanning and delicate conventional optics , expensive phased -array electronics and allows widespread inconspicuous deployment over a wide range of security scenarios.
IN10174DEN2014 2012-05-09 2013-05-09 IN2014DN10174A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201261644736P 2012-05-09 2012-05-09
US201361753584P 2013-01-17 2013-01-17
PCT/US2013/040444 WO2014025425A2 (en) 2012-05-09 2013-05-09 Metamaterial devices and methods of using the same

Publications (1)

Publication Number Publication Date
IN2014DN10174A true IN2014DN10174A (en) 2015-08-21

Family

ID=49679586

Family Applications (1)

Application Number Title Priority Date Filing Date
IN10174DEN2014 IN2014DN10174A (en) 2012-05-09 2013-05-09

Country Status (7)

Country Link
US (3) US9268016B2 (en)
EP (1) EP2847823A2 (en)
KR (1) KR20150042746A (en)
CN (2) CN104584326B (en)
IL (1) IL235536B (en)
IN (1) IN2014DN10174A (en)
WO (1) WO2014025425A2 (en)

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Also Published As

Publication number Publication date
IL235536A0 (en) 2015-01-29
WO2014025425A9 (en) 2014-03-27
WO2014025425A2 (en) 2014-02-13
US9268016B2 (en) 2016-02-23
CN107015220A (en) 2017-08-04
US20130335256A1 (en) 2013-12-19
IL235536B (en) 2020-07-30
KR20150042746A (en) 2015-04-21
US10386479B2 (en) 2019-08-20
EP2847823A2 (en) 2015-03-18
US20170003389A1 (en) 2017-01-05
US10416302B2 (en) 2019-09-17
US20160266248A1 (en) 2016-09-15
CN104584326B (en) 2017-03-08
WO2014025425A3 (en) 2014-07-10
CN104584326A (en) 2015-04-29

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