Signal isolation device
US12156391B2 · kind B2 · utility
0Cited by
2References
17Claims
0Family size
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Key dates
| Filing date | Mar 3, 2022 |
| Grant date | Nov 26, 2024 |
| Priority date | — |
| Expiry date | Apr 1, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/52
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A signal isolation device includes an insulation layer, at least one metal foil unit, and a metal layer. The at least one metal foil unit is disposed on a top surface of the insulation layer, and the metal foil unit has a first recessed channel and a second recessed channel. The first recessed channel and the second recessed channel spirally extend inward from an edge of the metal foil unit, and the first recessed channel and the second recessed channel surrounding each other are spaced apart. The metal layer is disposed on a bottom surface of the insulation layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.