GB953177A - Improvements in or relating to electromagnetic waveguide systems - Google Patents
Improvements in or relating to electromagnetic waveguide systemsInfo
- Publication number
- GB953177A GB953177A GB32603/60A GB3260360A GB953177A GB 953177 A GB953177 A GB 953177A GB 32603/60 A GB32603/60 A GB 32603/60A GB 3260360 A GB3260360 A GB 3260360A GB 953177 A GB953177 A GB 953177A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gyromagnetic
- dielectric
- layer
- composite
- core
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/32—Non-reciprocal transmission devices
Landscapes
- Waveguide Aerials (AREA)
- Microwave Tubes (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
953,177. Waveguide Faraday rotators. WESTERN ELECTRIC CO. Inc. Sept. 22, 1960 [Sept. 29, 1959], No. 32603/60. Heading H1W. The gyromagnetic element of a Faraday rotation device is provided with an inner core or layer of non- gyromagnetic dielectric material whereby a broad-band effect is achieved. In known rotators, using non- composite elements, the amount of rotation increases with frequency owing to the concentration of the guided wave energy towards the centre of the element. Replacement of the centre of the element with non-gyromagnetic material increases the range over which rotation is acceptably constant. The composite element of Fig. 3 comprises a tube 12 of a suitable gyromagnetic material, e.g. a ferrite, surrounding a core 13, the ratio of the radii r, R being less than 2 and the dielectric constants of the two materials being preferably equal. The element is aligned on the axis of a round wave 10 and is longitudinally polarized either by permanent magnetization or by external means. The dielectric core is extended at its ends to form tapered impedance-matching terminations. The element 40 of Fig. 4 comprises layers 41, 42 of gyromagnetic material arranged on either side of a composite dielectric slab 43, 44. The two parts of the slab are separated by a layer 52 of lossy material whereby a degree of attenuation dependent upon the angle between the polarization and the layer is produced. The slabs 41, 42 may be permanently magnetized or the element may be surrounded by a solenoid. The wedge-shaped ends 45, 46 of the element are supported by dielectric members 10, 51 within the ends of input and output waveguides 48, 49.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US843214A US3046506A (en) | 1959-09-29 | 1959-09-29 | Broadband polarization rotator |
Publications (1)
Publication Number | Publication Date |
---|---|
GB953177A true GB953177A (en) | 1964-03-25 |
Family
ID=25289353
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB32603/60A Expired GB953177A (en) | 1959-09-29 | 1960-09-22 | Improvements in or relating to electromagnetic waveguide systems |
Country Status (7)
Country | Link |
---|---|
US (1) | US3046506A (en) |
BE (1) | BE595514A (en) |
CH (1) | CH384648A (en) |
DE (1) | DE1141688B (en) |
ES (1) | ES260607A1 (en) |
GB (1) | GB953177A (en) |
NL (1) | NL253417A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2229043A (en) * | 1989-03-09 | 1990-09-12 | Marconi Electronic Devices | Faraday rotation device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9568675B2 (en) * | 2013-07-03 | 2017-02-14 | City University Of Hong Kong | Waveguide coupler |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2849642A (en) * | 1953-06-17 | 1958-08-26 | Bell Telephone Labor Inc | Traveling wave amplifier |
US2909738A (en) * | 1953-08-17 | 1959-10-20 | Bell Telephone Labor Inc | Broadband nonreciprocal devices |
US2980870A (en) * | 1954-02-15 | 1961-04-18 | Gen Precision Inc | Microwave field rotator |
US2900557A (en) * | 1954-08-26 | 1959-08-18 | Gen Electric | Traveling wave directional attenuator |
US2820720A (en) * | 1954-09-15 | 1958-01-21 | Hughes Aircraft Co | Glass-bonded ferrite |
DE1069233B (en) * | 1955-12-08 | 1959-11-19 | ||
US2963668A (en) * | 1955-12-28 | 1960-12-06 | Bell Telephone Labor Inc | Broad-band electromagnetic wave transmission means |
-
0
- NL NL253417D patent/NL253417A/xx unknown
-
1959
- 1959-09-29 US US843214A patent/US3046506A/en not_active Expired - Lifetime
-
1960
- 1960-08-04 CH CH886160A patent/CH384648A/en unknown
- 1960-08-18 ES ES0260607A patent/ES260607A1/en not_active Expired
- 1960-08-20 DE DEW28411A patent/DE1141688B/en active Pending
- 1960-09-22 GB GB32603/60A patent/GB953177A/en not_active Expired
- 1960-09-28 BE BE595514A patent/BE595514A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2229043A (en) * | 1989-03-09 | 1990-09-12 | Marconi Electronic Devices | Faraday rotation device |
Also Published As
Publication number | Publication date |
---|---|
NL253417A (en) | |
DE1141688B (en) | 1962-12-27 |
ES260607A1 (en) | 1961-04-01 |
US3046506A (en) | 1962-07-24 |
CH384648A (en) | 1964-11-30 |
BE595514A (en) | 1961-01-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE972329C (en) | Device for influencing linear or plane polarized waves in the microwave range | |
Chait et al. | Y circulator | |
AU551072B2 (en) | Magneto-optical converter | |
US3626335A (en) | Phase-shifting means | |
Acher et al. | Demonstration of anisotropic composites with tuneable microwave permeability manufactured from ferromagnetic thin films | |
GB801831A (en) | Improvements in or relating to wave guide switches | |
JPS5478153A (en) | Light isolator | |
US2849687A (en) | Non-reciprocal wave transmission | |
GB953177A (en) | Improvements in or relating to electromagnetic waveguide systems | |
US3990777A (en) | Non-reciprocal component element for integrated optics | |
Roberts | A note on the ferromagnetic Faraday effect at centimetre wavelengths | |
GB755174A (en) | Coupling arrangements for electromagnetic wave energy transmission systems | |
JPS565522A (en) | Progressive wave coupling type light wave and millimeter wave circulator applying faraday effect | |
GB836440A (en) | Improvements in or relating to the use of ferrite members in microwave conductors | |
Dionne et al. | Nonreciprocal magneto-optics for millimeter waves | |
GB1090443A (en) | Reciprocal microwave apparatus | |
US2985851A (en) | Unidirectional waveguide attenuator | |
US2956245A (en) | Microwave isolator | |
GB1493765A (en) | Maser amplifiers | |
US3103639A (en) | Absorption modulator switch utilizing gyromagnetic rotator split by resistive sheet | |
US3886497A (en) | Waveguide circulator having single gyromagnetic element | |
Allen | A microwave magnetometer | |
GB757925A (en) | Unidirectional wave guide attenuator | |
US3040276A (en) | Waveguide attenuator | |
Fox | Notes on microwave ferromagnetics research |