Continuously tunable inductor and method to continuously tune an inductor
US8044732B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2009 |
| Grant date | Oct 25, 2011 |
| Priority date | — |
| Expiry date | Mar 27, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B2201/0216
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A continuously tunable inductor with an inductive-capacitive (LC) voltage controlled oscillator (VCO) having a primary coil. The inductor includes a separate isolated secondary coil, a set of transistors composing a closed loop with the secondary coil, a magnetic coupling between the primary coil of the LC VCO and the secondary coil, an electrical coupling between the LC VCO and the set of transistors composing a closed loop with the secondary coil, and means for electric current injection into the closed loop. Such an inductor can be tuned by modulating a mutual inductance, which is magnetically and electrically coupled with the LC VCO by injection of an electric current (I0).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.