Antenna device and portable electronic device using the same
US10186753B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2015 |
| Grant date | Jan 22, 2019 |
| Priority date | — |
| Expiry date | Nov 20, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q13/10
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Disclosed herein is antenna device that includes: a first metal member having a first main surface; a second metal member having a second main surface parallel to the first main surface; and an antenna coil having a coil axis perpendicular to the first and second main surfaces, wherein the first metal member constitutes at least a part of a housing of a portable electronic device in which the antenna coil is mounted, at least one slit is formed between the first and second metal members, an inner diameter section of the antenna coil overlaps with the slit in planar view, and the slit has a constant width at least in a region that overlaps with the antenna coil in planar view.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.