Dual band antenna having mirror image meandering segments and wireless communicators incorporating same
US6184836A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 8, 2000 |
| Grant date | Feb 6, 2001 |
| Priority date | — |
| Expiry date | Feb 8, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q5/378
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Small antennas for internal mounting within wireless communicators, such as radiotelephones, that can operate within multiple frequency bands, including low frequency bands are provided. A planar radiating element overlies a pair of adjacent, spaced-apart, substantially parallel conductive strips that are electrically connected to ground. The conductive strips are configured to parasitically couple with the radiating element. The planar radiating element includes a first meandering segment and a second meandering segment that is a mirror image of the first meandering segment. The first meandering segment includes a set of periodically spaced-apart planar undulations, such as U-shaped portions, and the second meandering segment includes a corresponding set of periodically spaced-apart planar undulations. The first and second meandering segments are connected together in opposing relationship therewith to form a continuous, conductive loop.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.