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 wavesInfo
- 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
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)
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 (fr) |
BE (1) | BE476946A (fr) |
CH (1) | CH293578A (fr) |
FR (1) | FR956893A (fr) |
GB (1) | GB664673A (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2181577A1 (fr) * | 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)
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 (fr) * | 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 (fr) * | 1977-04-01 | 1981-05-05 | Leland H. Hemming | Lentille a onde plane |
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 (fr) * | 1995-03-17 | 1996-09-26 | Massachusetts Institute Of Technology | Cristal photonique metallodielectrique |
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 |
EP3959776B1 (fr) * | 2019-04-26 | 2024-04-10 | Guangzhou Sigtenna Technology Co., Ltd. | Matériau diélectrique artificiel et lentilles de mise au point constituées de celui-ci |
Family Cites Families (3)
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 |
-
0
- FR FR956893D patent/FR956893A/fr not_active Expired
- BE BE476946D patent/BE476946A/xx unknown
-
1947
- 1947-05-16 US US748448A patent/US2577619A/en not_active Expired - Lifetime
- 1947-10-10 GB GB27275/47A patent/GB664673A/en not_active Expired
-
1948
- 1948-04-15 CH CH293578D patent/CH293578A/fr unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2181577A1 (fr) * | 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 |
BE476946A (fr) | |
FR956893A (fr) | 1950-02-09 |
US2577619A (en) | 1951-12-04 |
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