Multi-frequency band inverted-F antennas with coupled branches and wireless communicators incorporating same
US6563466B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2001 |
| Grant date | May 13, 2003 |
| Priority date | — |
| Expiry date | Sep 26, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q9/0421
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Multi-frequency band antennas for use within wireless communicators, such as radiotelephones, are provided and include a first conductive branch configured to radiate in a first frequency band and a second conductive branch configured to radiate in a second frequency band that is different from the first frequency band. The first conductive branch includes opposite first and second end portions and opposite first and second edge portions that extend between the first and second end portions. A notch is formed in the second edge portion adjacent the second end portion. The second conductive branch includes opposite third and fourth end portions and opposite third and fourth edge portions that extend between the third and fourth end portions. The first and second conductive branches are connected together at the first and third end portions and are configured to electrically couple at the respective second and fourth end portions. Coupling is utilized between the first and second conductive branches to achieve bandwidth and gain results desired for the antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.