Electronic device having a multi-state antenna ground structure
US6839577B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2002 |
| Grant date | Jan 4, 2005 |
| Priority date | — |
| Expiry date | Jul 10, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q9/30
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An electronic device (100) has a multi-state antenna ground structure (428, 500) integrated into the device housing. Configuration of the electronic device (100) for use in one of at least two operable configurations automatically causes a switching of the ground structure to improve antenna efficiency. Metal plates (416, 424) are secured within movable portions (104, 114) of the device housing such that in a first configuration the metal plates are in close proximity and act as a low impedance path for switching the ground structure to a first state. In a second configuration of the electronic device (100) the plates are separated an act as a high impedance path for switching the ground structure to a second state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.