Multiple frequency inverted-F antennas having multiple switchable feed points and wireless communicators incorporating the same
US6662028B1 · kind B1 · utility
35Cited by
4References
56Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 2000 |
| Grant date | Dec 9, 2003 |
| Priority date | — |
| Expiry date | May 22, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q9/14
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Compact, planar inverted-F antennas are provided that radiate within multiple frequency bands for use within communications devices, such as radiotelephones. Multiple signal feeds extend from a conductive element in respective spaced-apart locations. A respective plurality of micro-electromechanical systems (MEMS) switches are electrically connected to the signal feeds and are configured to selectively connect the respective signal feeds to ground or RF circuitry. In addition, each MEMS switch can be opened to electrically isolate a respective signal feed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.