YIG tuned oscillator using composite feedback
US4988959A · kind A · utility
9Cited by
14References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1989 |
| Grant date | Jan 29, 1991 |
| Priority date | — |
| Expiry date | Oct 31, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B5/1888
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A broadband YIG-tuned oscillator is disclosed that has both series and parallel feedback provided by a YIG sphere. The oscillator includes a transistor capable of driving a load coupled to a first port of the transistor, a reactive feedback element coupled to a second port of the transistor, a YIG resonator, and coupling means for coupling the YIG resonator to both a third port of the transistor and to the first port of the transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.