Tunable antenna and related radio-frequency device
US8854268B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2012 |
| Grant date | Oct 7, 2014 |
| Priority date | — |
| Expiry date | Mar 7, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q5/378
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A tunable antenna is disclosed. The tunable antenna includes a ground element for providing grounding, a signal feed-in terminal, a radiation unit electrically connected to the signal feed-in terminal and including a long side extended from the signal feed-in terminal along a first direction, a short side extended from the signal feed-in terminal along a second direction, and a branch electrically connected between the signal feed-in terminal and the ground element, a coupling unit for coupling to the long side, and a switch unit for connecting or disconnecting the coupling unit to/from the ground element to change a coupling relationship between the coupling unit and the long side, such that the tunable antenna respectively operates in a first frequency band and a second frequency band.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.