GB953123A - Improvements in attenuators - Google Patents
Improvements in attenuatorsInfo
- Publication number
- GB953123A GB953123A GB665661A GB665661A GB953123A GB 953123 A GB953123 A GB 953123A GB 665661 A GB665661 A GB 665661A GB 665661 A GB665661 A GB 665661A GB 953123 A GB953123 A GB 953123A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ferrite
- slabs
- partitions
- waveguide
- feb
- 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
- H01P1/36—Isolators
- H01P1/365—Resonance absorption isolators
Landscapes
- Non-Reversible Transmitting Devices (AREA)
Abstract
953,123. Waveguide ferrite isolators. COMPAGNIE FRANCAISE THOMSON - HOUSTON. Feb. 23, 1961 [Feb. 23, 1960], No. 6656/61. Heading H1W. A rectangular waveguide forming part of a non-reciprocal ferrite attenuator (or isolator) is subdivided by conductive partitions extending perpendicular to the electric field, and ferrite elements are located on the partitions as well as on the walls of the waveguide. As shown in Fig. 3, in addition to the usual elongated ferrite slabs 22, 23, two further slabs 24, 25 are located on the conductive partition 21. All the slabs are subject to the field of a polarizing magnet 26. In a modification (Fig. 4, not shown), two partitions and four extra slabs are used. The invention makes it possible to use ferrite elements of optimum length-to-thickness ratio without the necessity for very large magnets. Further, heat dissipation is improved. The Specification describes a known method of solving these problems using two magnets 16, 17, Fig. 2, and four ferrite slabs 12, 13, 14, 15.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR819280A FR1257729A (en) | 1960-02-23 | 1960-02-23 | Attenuator refinements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB953123A true GB953123A (en) | 1964-03-25 |
Family
ID=8725647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB665661A Expired GB953123A (en) | 1960-02-23 | 1961-02-23 | Improvements in attenuators |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE1149418B (en) |
| FR (1) | FR1257729A (en) |
| GB (1) | GB953123A (en) |
| NL (1) | NL261567A (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2870418A (en) * | 1952-05-06 | 1959-01-20 | Bell Telephone Labor Inc | Wave guide components controlled by ferromagnetically resonant elements |
| BE549333A (en) * | 1955-09-16 |
-
0
- NL NL261567D patent/NL261567A/xx unknown
-
1960
- 1960-02-23 FR FR819280A patent/FR1257729A/en not_active Expired
-
1961
- 1961-02-18 DE DEC23444A patent/DE1149418B/en active Pending
- 1961-02-23 GB GB665661A patent/GB953123A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1257729A (en) | 1961-04-07 |
| NL261567A (en) | |
| DE1149418B (en) | 1963-05-30 |
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