High power ferrite circulator having heating and cooling means
US5128635A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 1989 |
| Grant date | Jul 7, 1992 |
| Priority date | — |
| Expiry date | Jul 10, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/39
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A high power, high frequency, Y-junction three port circulator containing at least one metal plate in the Y-junction covered with ferromagnetic material and an external magnet producing a magnetic field through the ferromagnetic material so that it is magnetized to saturation magnetization when the temperature of the material is within a predetermined temperature range; and a method and means of maintaining the temperature of the ferrite material within said predetermined range even while the circulator operates in a variable ambient environment at high power, including means connected to the metal plate for heating and cooling the plate, thereby controlling the temperature of the ferromagnetic material to maintain the temperature thereof within said predetermined temperature range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.