YIG microwave oscillator
US5428324A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 1993 |
| Grant date | Jun 27, 1995 |
| Priority date | — |
| Expiry date | Jul 28, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P7/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention is directed to the structure of a YIG-component. The component comprises a magnetic circuit for generating an homogeneous magnetic field in an air gap of the magnetic circuit and at least one ferrite crystal (81) arranged in the air gap. The magnetic resonance frequency of the ferrite crystal (81) may be controlled dependent on the strength of the homogeneous magnetic field. The magnetic circuit is enclosed in a cavity of a housing (53, 55) arranged for mechanically relieving the magnetic circuit from external influence. The housing (53, 55) may be formed from a material selected at will. The magnetic circuit is arranged in a specifically shaped seat for accurate positioning of the air gap in the housing (53, 55). A foundation formed in the housing (53, 55) is provided for supporting a YIG-unit (75) comprising the ferrite crystal (81) with correct positioning of the ferrite crystal in the air gap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.