Device with an antenna
US10622712B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2016 |
| Grant date | Apr 14, 2020 |
| Priority date | — |
| Expiry date | Aug 12, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention provides an electrical device, comprising a transformer (22) with a ferrite core (24) and an RF antenna (14). The antenna (14) is electrically isolated from said transformer (22), and a geometric dimension of the antenna (14) has a maximum dimension along or around a surface of the RF antenna (i.e. within the plane of the antenna or around a curved surface defining the antenna), and the RF antenna (14) is spatially spaced from a nearest part of the ferrite core (24) by less than the maximum dimension. This design makes use of the ferrite core of a transformer to provide isolation of the antenna from other parts of the device. This assists in reducing the impact of those parts of the device on the performance of the antenna, in particular the reception range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.