Variable-frequency microwave oscillator with multi-resonator matching circuit
US5432482A · kind A · utility
Inventor
Key dates
| Filing date | Jul 28, 1994 |
| Grant date | Jul 11, 1995 |
| Priority date | — |
| Expiry date | Jul 28, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B2200/0074
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An injection-locked variable-frequency high-power microwave frequency generator includes an injection source, a circulator, and an oscillator. The circulator includes an injection port to the injection source, an oscillator port to the oscillator, and a transmission port. The circulator directs the injection signal from the injection source into the oscillator and directs the oscillator output out the transmission port. The oscillator includes an IMPATT diode and a microstrip matching circuit. The matching circuit provides the sufficient conditions for broadband (9.1-9.5 GHz) oscillation of the diode. To this end, the matching circuit provides three resonators having three different but closely coupled resonant frequencies. The matching circuit also serves as a transformer, providing impedance matching to the circulator. A high-power output can be chirped or otherwise controlled by electronic control of the injection frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.