Radio-frequency device and wireless communication device
US8723749B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2012 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Dec 5, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q5/378
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention discloses an RF device for a wireless communication device, including a grounding element, an antenna, including a radiating element, a feed-in element, a coupling element, a switch, coupled between the coupling element and the grounding element, for connecting or disconnecting the grounding element to the coupling element, such that the antenna respectively operates in a first frequency band and a second frequency band, and a grounding terminal, for coupling the grounding element, a capacitive sensing element, for sensing an environment capacitance within a specific range through the radiating element, at least one capacitor, for blocking a DC route from the grounding terminal to the grounding element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.