Folded dual-band antenna apparatus
US6750821B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 15, 2003 |
| Grant date | Jun 15, 2004 |
| Priority date | — |
| Expiry date | Jan 15, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q5/357
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A folded dual-band monopole antenna apparatus is disclosed, which includes a radiation body, a transmission line and a conductor. The radiation body resonates at a first and a second operating frequency. The radiation body connects the transmission line by way of the conductor. The radiation body includes a first side and a corresponding second side, and slits are set alternately on the first side and the second side to make the radiation body to be a meandered structure. The radiation body is folded along an extended direction of the slits to form a pillar structure for size miniaturization. The radiation body can cover a surface of a pillar dielectric material structure by printing technology for further size miniaturization and improving the strength of the radiation body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.