Antenna circuit
US4686708A · kind A · utility
3Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1985 |
| Grant date | Aug 11, 1987 |
| Priority date | — |
| Expiry date | Dec 27, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/18
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An antenna circuit includes a ferrite core around which a main coil and a negative feedback coil are wound, and a field effect transistor (FET) with its source grounded, and with a voltage induced in the main coil being applied across the gate and the source of the FET to thereby form an aperiodic circuit and the drain of the FET being connected through the negative feedback coil to a load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.