Balun structure
US10374571B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 24, 2017 |
| Grant date | Aug 6, 2019 |
| Priority date | — |
| Expiry date | Jan 19, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2017/0073
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A balun structure is provided. The balun structure includes a substrate, a first coil structure and a second coil structure having a spiral shape and on the substrate. The first coil structure includes a first single-layer coil surrounding by first laminated coils that are connected to the first single-layer coil. The second coil structure can include a second single-layer coil and second laminated coils that are connected to the second single-layer coil. A projection of the first single-layer coil and a projection of the second single-layer coil on a surface of the substrate overlap with each other. A number of the second laminated coils is larger than or equal to a number of the first laminated coils. The second laminated coils are arranged alternately with the first laminated coils or the first single-layer coil in a plane parallel to the surface of the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.