Printed circuit coils
US4075591A · kind A · utility
30Cited by
6References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 31, 1977 |
| Grant date | Feb 21, 1978 |
| Priority date | — |
| Expiry date | Jan 31, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K1/165
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The conducting path width of a spiral printed circuit coil is reduced for the inside of the spiral coil to obtain more inductance in the same space without substantial sacrifice in Q. In another form of spiral coil with non-constant path width, the path width is reduced in a sector of the coil located between the inner and outer terminals to reduce the distance between terminals with minimum sacrifice in inductance or Q.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.