Ferrite circulator
US3935549A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 12, 1974 |
| Grant date | Jan 27, 1976 |
| Priority date | — |
| Expiry date | Aug 12, 1994 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/387
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Disclosed is an improved ferrite circulator particularly adapted for use as an isolator in VHF and UHF transmission systems. It comprises a pair of relatively thick ground plates to which are attached three or more equally spaced coaxial connectors forming circulator ports. A pair of elongated magnetic members extend between the ground plates from opposite sides of the circulator junction to a location between the ground plates remote from the junction. A resilient permanent magnet is movable between the magnetic members at the remote location to provide simple and rapid tuning by adjustment of the permanent magnet field across the junction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.