Broadband variable antenna device and portable terminal having the same
US9640871B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2013 |
| Grant date | May 2, 2017 |
| Priority date | — |
| Expiry date | Feb 5, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q9/0414
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Disclosed is an antenna device for a portable terminal, including a circuit board having a conductive layer attached on a surface, a first slit formed by partially removing the conductive layer in a position adjacent to one side of the circuit board, the first slit extending in parallel with a lateral periphery of the circuit board, a radiation portion comprising part of the conductive layer positioned on the lateral periphery of the circuit board in one side of the first slit, and a feed line placed on the first slit and adapted to feed the radiation portion from the other side of the first slit. The radiation portion further comprises a second slit extending from the first slit to the lateral periphery of the circuit board across part of the conductive layer forming the radiation portion, and a frequency adjustment element placed on the second slit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.