Multiband antenna with parasitically-coupled resonators
US7224313B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 2004 |
| Grant date | May 29, 2007 |
| Priority date | — |
| Expiry date | May 10, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/30
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A multiband antenna includes at least two resonators that are driven directly and resonate in different frequency bands and a parasitically coupled resonator that resonates in one of the frequency bands. The coupled resonator is grounded with a conductive trace at one end and is thus not directly fed by the RF feed of the antenna. The coupled resonator increases the efficiency bandwidth near the frequency of operation for the coupled resonator. The antenna is fabricated from a stamped metal that is bent around or overmolded by a spacer layer. A clip formed integrally with the antenna by bending a portion of the ground plane permits attachment to the metal shield of the display of a laptop computer and is thus grounded along its length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.