GB664673A - Improvements in or relating to devices for changing the phase velocity of electromagnetic waves - Google Patents

Improvements in or relating to devices for changing the phase velocity of electromagnetic waves

Info

Publication number
GB664673A
GB664673A GB27275/47A GB2727547A GB664673A GB 664673 A GB664673 A GB 664673A GB 27275/47 A GB27275/47 A GB 27275/47A GB 2727547 A GB2727547 A GB 2727547A GB 664673 A GB664673 A GB 664673A
Authority
GB
United Kingdom
Prior art keywords
phase velocity
relating
changing
devices
electromagnetic waves
Prior art date
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
GB27275/47A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB664673A publication Critical patent/GB664673A/en
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)
GB27275/47A 1947-05-16 1947-10-10 Improvements in or relating to devices for changing the phase velocity of electromagnetic waves Expired GB664673A (en)

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
GB664673A true GB664673A (en) 1952-01-09

Family

ID=25009486

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27275/47A Expired GB664673A (en) 1947-05-16 1947-10-10 Improvements in or relating to devices for changing the phase velocity of electromagnetic waves

Country Status (5)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2181577A1 (pt) * 1972-04-28 1973-12-07 Bony Gilbert
GB2121612A (en) * 1982-05-21 1983-12-21 Ca Minister Nat Defence Dipole array lens antenna
GB2150357A (en) * 1983-10-12 1985-06-26 Schwerionenforsch Gmbh Solid material having anisotropic electrical conductivity and a method for its preparation

Families Citing this family (23)

* 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 (pt) * 1969-10-15 1973-10-19 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
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
US8519899B1 (en) * 2010-03-23 2013-08-27 Lockheed Martin Corporation Passive electromagnetic polarization shifter with dielectric slots
US8618994B1 (en) 2010-03-23 2013-12-31 Lockheed Martin Corporation Passive electromagnetic polarization shifter with dielectric slots
WO2020218927A1 (en) * 2019-04-26 2020-10-29 Vasant Limited 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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2181577A1 (pt) * 1972-04-28 1973-12-07 Bony Gilbert
GB2121612A (en) * 1982-05-21 1983-12-21 Ca Minister Nat Defence Dipole array lens antenna
GB2150357A (en) * 1983-10-12 1985-06-26 Schwerionenforsch Gmbh Solid material having anisotropic electrical conductivity and a method for its preparation

Also Published As

Publication number Publication date
CH293578A (fr) 1953-09-30
US2577619A (en) 1951-12-04
FR956893A (pt) 1950-02-09
BE476946A (pt)

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