Mobile communication device
US10014568B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 18, 2014 |
| Grant date | Jul 3, 2018 |
| Priority date | — |
| Expiry date | Dec 18, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/48
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Embodiments described herein relate a mobile communication device and techniques to suppress deterioration of antenna characteristics. The mobile device includes metallic members that are disposed around, or in portions of a casing of the mobile device. The metallic member is grounded directly to a ground plane of the mobile device at a first predetermined position. The grounded metallic member forms a stub line that cancels a flow of electric current though the metallic member. Furthermore, the metallic member is also connected to the ground plane, at a second predetermined location, via a resonant circuit. The mobile device is capable of adjusting a phase of the antenna current flowing through the device, when the mobile device is being operated by a user, and thus suppresses deterioration of antenna characteristics in certain desired frequency bands.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.