Method and apparatus for eliminating mutual inductance effects in resonant coil assemblies
US5973495A · kind A · utility
36Cited by
2References
11Claims
0Family size
Inventor
Key dates
| Filing date | Jan 16, 1998 |
| Grant date | Oct 26, 1999 |
| Priority date | — |
| Expiry date | Jan 16, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q7/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Method and apparatus for eliminating mutual inductance effects in resonant coil assemblies in which a plurality of coils are situated in sufficiently close proximity to create small mutual inductances between the coils. The method comprises evaluating the mutual inductances using a T, star or other transformation of the relevant parts of the circuit, thereby isolating the mutual inductances in such a way that series capacitances may be introduced to tune out the mutual inductances at a common frequency, reducing the coil array to a synchronously tuned circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.