Lumped constant non-reciprocal circuit element
US4812787A · kind A · utility
15Cited by
1References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 20, 1987 |
| Grant date | Mar 14, 1989 |
| Priority date | — |
| Expiry date | Oct 20, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/383
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A lumped constant non-reciprocal circuit element such as a circulator or an isolator comprising a set of mutually insulated central conductors, a garnet plate not more than 0.6 mm in thickness, a ceramic substrate having a central bore for accommodating the garnet plate and patterned electrodes formed thereon, and a permanent magnet for applying a DC magnetic field to the garnet plate. Because of this structure, this circuit element is very thin with good insertion loss properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.