GB1420050A - High power y-junction h-plane circulator for microwave trans mission - Google Patents
High power y-junction h-plane circulator for microwave trans missionInfo
- Publication number
- GB1420050A GB1420050A GB5292173A GB5292173A GB1420050A GB 1420050 A GB1420050 A GB 1420050A GB 5292173 A GB5292173 A GB 5292173A GB 5292173 A GB5292173 A GB 5292173A GB 1420050 A GB1420050 A GB 1420050A
- Authority
- GB
- United Kingdom
- Prior art keywords
- field
- circulator
- power
- junction
- nov
- 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
- 230000005540 biological transmission Effects 0.000 title 1
- 239000000463 material Substances 0.000 abstract 3
- 230000005293 ferrimagnetic effect Effects 0.000 abstract 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- NDYCBWZIOSTTHS-UHFFFAOYSA-N cobalt samarium Chemical compound [Co].[Co].[Co].[Co].[Co].[Sm] NDYCBWZIOSTTHS-UHFFFAOYSA-N 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 230000005291 magnetic effect Effects 0.000 abstract 1
- 230000009022 nonlinear effect Effects 0.000 abstract 1
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 abstract 1
- 238000009738 saturating Methods 0.000 abstract 1
- 230000005418 spin wave Effects 0.000 abstract 1
- 229910000859 α-Fe Inorganic materials 0.000 abstract 1
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
- H01P1/38—Circulators
- H01P1/383—Junction circulators, e.g. Y-circulators
- H01P1/39—Hollow waveguide circulators
Abstract
1420050 Microwave circulators; permanent magnets THOMSON-CSF 14 Nov 1973 [17 Nov 1972] 52921/73 Headings H1W and H1P Operation of an X-band high-power, Y- junction, H-plane circulator, at temperatures between -40C. and +85C. is secured by using for the ferrimagnetic element a material having a spin-wave linewidth below 10 oersteds, and a biasing field which is capable of saturating the material, stronger than the field associated with minimum critical power and close to the limit beyond which non-linear effects are negligible. "Critical power" is defined as the input power above which losses between coupled ports, begin to rise rapidly (see Fig. 1, not shown) and, as shown in Fig. 2, it varies with the applied magnetic field. A field is chosen above the value M corresponding to minimum critical power and close to the limiting field H L . Examples of materials suitable for the ferrimagnetic elements are: Y 3-3x Gd 3x Fe 5 O 12 (x = 0À310%), Y 3 Fe 5-5y Al 5y O 12 (y=0À07410%). The circulator (Figs. 3, 4, 5, not shown) is of conventional construction using ferrite elements mounted on aluminium discs and samariumcobalt permanent magnets.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7240897A FR2207367B1 (en) | 1972-11-17 | 1972-11-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1420050A true GB1420050A (en) | 1976-01-07 |
Family
ID=9107314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5292173A Expired GB1420050A (en) | 1972-11-17 | 1973-11-14 | High power y-junction h-plane circulator for microwave trans mission |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3895319A (en) |
| FR (1) | FR2207367B1 (en) |
| GB (1) | GB1420050A (en) |
| IT (1) | IT996465B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3586137D1 (en) * | 1984-03-29 | 1992-07-09 | Telefunken Systemtechnik | MILLIMETER SHAFT CIRCULATOR. |
| CN103490130B (en) * | 2013-08-30 | 2016-03-02 | 南京信息职业技术学院 | The manufacture method of a kind of waveguide junction circulator and match block thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3104361A (en) * | 1960-02-26 | 1963-09-17 | Hughes Aircraft Co | Ferrite circulator with conductive plate of uniform thickness having tapered angularapexes for broad banding |
-
1972
- 1972-11-17 FR FR7240897A patent/FR2207367B1/fr not_active Expired
-
1973
- 1973-11-14 US US415751A patent/US3895319A/en not_active Expired - Lifetime
- 1973-11-14 GB GB5292173A patent/GB1420050A/en not_active Expired
- 1973-11-16 IT IT53735/73A patent/IT996465B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| IT996465B (en) | 1975-12-10 |
| US3895319A (en) | 1975-07-15 |
| FR2207367A1 (en) | 1974-06-14 |
| FR2207367B1 (en) | 1977-04-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19921114 |