FR956893A - - Google Patents

Info

Publication number
FR956893A
FR956893A FR956893DA FR956893A FR 956893 A FR956893 A FR 956893A FR 956893D A FR956893D A FR 956893DA FR 956893 A FR956893 A FR 956893A
Authority
FR
France
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
French (fr)
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.)
Publication date
Application granted granted Critical
Publication of FR956893A publication Critical patent/FR956893A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/17—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on variable-absorption elements not provided for in groups G02F1/015 - G02F1/169
    • G02F1/172—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on variable-absorption elements not provided for in groups G02F1/015 - G02F1/169 based on a suspension of orientable dipolar particles, e.g. suspended particles displays
    • 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
    • H01Q15/02—Refracting or diffracting devices, e.g. lens, prism
    • H01Q15/10—Refracting or diffracting devices, e.g. lens, prism comprising three-dimensional array of impedance discontinuities, e.g. holes in conductive surfaces or conductive discs forming artificial dielectric

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Aerials With Secondary Devices (AREA)
  • Waveguide Switches, Polarizers, And Phase Shifters (AREA)
FR956893D 1947-05-16 Expired FR956893A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US748448A US2577619A (en) 1947-05-16 1947-05-16 Metallic structure for delaying unipolarized waves

Publications (1)

Publication Number Publication Date
FR956893A true FR956893A (xx) 1950-02-09

Family

ID=25009486

Family Applications (1)

Application Number Title Priority Date Filing Date
FR956893D Expired FR956893A (xx) 1947-05-16

Country Status (5)

Country Link
US (1) US2577619A (xx)
BE (1) BE476946A (xx)
CH (1) CH293578A (xx)
FR (1) FR956893A (xx)
GB (1) GB664673A (xx)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2840819A (en) * 1950-06-20 1958-06-24 Westinghouse Electric Corp Reflecting surfaces
FR1036025A (fr) * 1951-04-23 1953-09-02 Csf Ligne interdigitale symétrique pour tubes à propagation d'onde
US2743440A (en) * 1951-07-19 1956-04-24 Henry J Riblet Electromagnetic horn
US2749545A (en) * 1951-08-01 1956-06-05 Itt Electromagnetic horn
US2756424A (en) * 1952-04-30 1956-07-24 Edward A Lewis Wire grid fabry-perot type interferometer
US2900706A (en) * 1952-11-21 1959-08-25 Elliott Brothers London Ltd Lens, mirror or like elements for high frequency radio aerials
US2801412A (en) * 1953-07-22 1957-07-30 Paul C Maybury Radio frequency antenna
US3017608A (en) * 1954-07-07 1962-01-16 William J Toulis Spherical acoustical lens system for focusing underwater sound
US3002123A (en) * 1957-01-11 1961-09-26 Rca Corp Traveling wave tube structure
US2978702A (en) * 1957-07-31 1961-04-04 Arf Products Antenna polarizer having two phase shifting medium
US3214760A (en) * 1960-04-28 1965-10-26 Textron Inc Directional antenna with a two dimensional lens formed of flat resonant dipoles
US3099836A (en) * 1960-05-16 1963-07-30 Lockheed Aircraft Corp V-strip antenna with artificial dielectric lens
US3461260A (en) * 1966-05-16 1969-08-12 Gen Motors Corp Microwave oven
FR2063967B1 (xx) * 1969-10-15 1973-10-19 Bony Gilbert
FR2181577B1 (xx) * 1972-04-28 1974-07-26 Bony Gilbert
US4112432A (en) * 1976-10-21 1978-09-05 Hughes Aircraft Company Square horn antenna having improved ellipticity
CA1100625A (en) * 1977-04-01 1981-05-05 Leland H. Hemming Plane wave lens
US4307404A (en) * 1978-03-20 1981-12-22 Harris Corporation Dichroic scanner for conscan antenna feed systems
CA1186406A (en) * 1982-05-21 1985-04-30 Her Majesty The Queen In Right Of Canada As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government Dipole array lens antenna
DE3337049A1 (de) * 1983-10-12 1985-05-09 Gesellschaft für Schwerionenforschung mbH, 6100 Darmstadt Feststoff mit besonderen elektrischen eigenschaften und verfahren zur herstellung eines solchen feststoffes
US5414438A (en) * 1993-09-13 1995-05-09 Dooley; John A. Space lattice passive repeater
WO1996029621A1 (en) * 1995-03-17 1996-09-26 Massachusetts Institute Of Technology Metallodielectric photonic crystal
US6107901A (en) * 1998-06-16 2000-08-22 Raytheon Company Reduced-size waveguide device
US8618994B1 (en) 2010-03-23 2013-12-31 Lockheed Martin Corporation Passive electromagnetic polarization shifter with dielectric slots
US8519899B1 (en) * 2010-03-23 2013-08-27 Lockheed Martin Corporation Passive electromagnetic polarization shifter with dielectric slots
EP3959776B1 (en) * 2019-04-26 2024-04-10 Guangzhou Sigtenna Technology Co., Ltd. Artificial dielectric material and focusing lenses made of it

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2288735A (en) * 1929-05-18 1942-07-07 John J O'connell Method of making electrostatic shields
US2415807A (en) * 1942-01-29 1947-02-18 Sperry Gyroscope Co Inc Directive electromagnetic radiator
US2464269A (en) * 1942-06-12 1949-03-15 Raytheon Mfg Co Method and means for controlling the polarization of radiant energy

Also Published As

Publication number Publication date
BE476946A (xx)
CH293578A (fr) 1953-09-30
US2577619A (en) 1951-12-04
GB664673A (en) 1952-01-09

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