Injection locked high frequency oscillator
US7145404B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 28, 2005 |
| Grant date | Dec 5, 2006 |
| Priority date | — |
| Expiry date | Mar 24, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B5/1852
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A push-push high frequency oscillator comprises a pair of amplifiers for oscillation, a loop-shaped microstrip line for connecting inputs of the pair of amplifiers to each other and connecting outputs of the pair of amplifiers to each other, a slot line disposed between the inputs and the outputs of the pair of amplifiers for electromagnetically coupling with the microstrip line, a nonlinear circuit for enhancing the level of harmonic components in an applied synchronization signal, a coupler circuit for electromagnetically coupling the output of the nonlinear circuit to the microstrip line, and a filter circuit disposed at the output of the nonlinear circuit. The filter circuit filters harmonic components of the synchronization signal such that the two oscillation systems are injected with the same frequency components as the fundamental wave or frequency components twice as high as the fundamental wave to increase frequency stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.