Multiband antenna
US6765542B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2002 |
| Grant date | Jul 20, 2004 |
| Priority date | — |
| Expiry date | Oct 1, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/26
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A multi-band antenna comprising two or more low frequency radiators dimensioned to operate in a low frequency band, and two or more high frequency radiators dimensioned to operate in a high frequency band. Each high frequency radiator is substantially coplanar with the low frequency radiators, and is formed in a spiral with the high and low frequency radiators interleaved. A hybrid feed network has two or more antenna ports, each antenna port being coupled with a low frequency radiator and a high frequency radiator. The antenna can be used for receiving GPS L1/L2 signals. The antenna is configured to send and/or receive circularly polarized radiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.