Frequency selective limiter with temperature and frequency compensation
US5157360A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1991 |
| Grant date | Oct 20, 1992 |
| Priority date | — |
| Expiry date | Jun 7, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/23
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention is directed to a frequency selective limiter. A ferrite member supports a signal carrying conductor and magnets establish a transverse magnetic field closely coupled with the conductor through the ferrite. The magnets establish a magnetic field strength versus temperature having a desired characteristic slope. A magnetic shunt, magnetically coupled to the magnets, diverts a portion of the magnetic field lines away from the ferrite for reducing the magnitude of the field coupled with the conductor to a lower value while maintaining the desired characteristic slope of the magnetic field strength with temperature. In a particular embodiment of the invention, the magnetic shunt establishes magnetic field lines within the ferrite which lie at a selected angle with respect to the conductor so that the limiting characteristic of the FSL is relatively flat across the bandwidth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.