Antenna and electronic device
US7355556B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2005 |
| Grant date | Apr 8, 2008 |
| Priority date | — |
| Expiry date | Mar 30, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/273
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An antenna includes a rod-like core configured by an amorphous metal formed into a bulk configuration, and a coil wound around the core. An electronic device includes a case encasing the antenna, a sectional area of each longitudinal end portion of the core being larger than that of a central portion of the core. The antenna may be disposed under a radio wave permeable decorative plate in such a manner that a magnetic sheet is attached to each end portion of the core to protrude outwards from the core or that an expanded portion is disposed in each end portion and has such a shape to make a side of a surface of the expanded portion facing the decorative plate receive more radio wave than a side of a surface of the expanded portion opposite to the facing surface in relation to an axial line of the antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.