High frequency transistor oscillator with discrete resonator elements for transponder
US4616193A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 22, 1985 |
| Grant date | Oct 7, 1986 |
| Priority date | — |
| Expiry date | Jan 22, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03C3/22
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A solid state oscillator circuit for operation at very high frequencies includes a field effect transistor having an input network connected between its gate and source electrodes and an output network connected between its drain and source electrodes, the input and output networks each including three discrete capacitors connected in a "pi" configuration, the input and output networks being connected in series with one another, and an inductor being connected in parallel with the series connected networks, the equivalent circuit impedance of the networks in series and the inductance determining the operating frequency of the oscillator circuit, and the relative ratio of impedance of the networks determining the amount of oscillator feedback.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.