Antenna systems including internal planar inverted-F antennas coupled with retractable antennas and wireless communicators incorporating same
US6380903B1 · kind B1 · utility
46Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2001 |
| Grant date | Apr 30, 2002 |
| Priority date | — |
| Expiry date | Feb 16, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/28
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Antenna systems for use with wireless communicators, such as radiotelephones, are provided and include a first antenna configured to be internally mounted within a wireless communicator and a retractable, second antenna that couples with the first antenna when extended. The internal, first antenna is resonant within one or more frequency bands and the retractable, second antenna couples with the internal, first antenna so as to enhance one or more of the resonant frequency bands of the internal, first antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.