Antenna device and mobile communications apparatus including the device
US6677905B2 · kind B2 · utility
12Cited by
4References
85Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2002 |
| Grant date | Jan 13, 2004 |
| Priority date | — |
| Expiry date | Feb 13, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q9/0442
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An antenna device includes: a radiator having a meander portion; and a conductor shorter than the radiator which is disposed opposite to the radiator. A coaxial cable is connected to the radiator and conductor. Respective line lengths of the radiator and conductor satisfy a predetermined relation with respect to a wavelength of a signal to be transmitted and received. The antenna device achieves at least one of improved antenna characteristics, downsizing, and improved mechanical strength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.