Soft magnetic bands for tilted coil antennas
US10048399B2 · kind B2 · utility
2Cited by
15References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2015 |
| Grant date | Aug 14, 2018 |
| Priority date | — |
| Expiry date | Oct 20, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q7/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An antenna assembly includes a tool mandrel having a tool axis, and a coil including a plurality of windings wrapped about the tool mandrel at a winding angle offset from the tool axis. A soft magnetic band radially interposes the coil and the tool mandrel and extends about a circumference of the tool mandrel at a band angle orthogonal to the winding angle. The soft magnetic band includes a plurality of inserts, and a gap is defined between each laterally adjacent insert and the gap extends parallel to the tool axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.