Co-location insensitive multi-band antenna
US8618988B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 5, 2007 |
| Grant date | Dec 31, 2013 |
| Priority date | — |
| Expiry date | Oct 15, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q5/371
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present example provides a co-location insensitive multi-band antenna. The antenna may be co-located with an antenna operated at another band and tends to reject interference from that antenna. The co-location insensitive multi-band antenna tends to provide a compact design that may be printed on a printed wiring board, on a case of a radio, such as a cellular telephone or may be self supporting. In general, the desired in band performance and out of band signal rejection may be achieved by a meander line coupled to a upper band patch. The meander line tends to provide a good lower band match, and the upper band patch tends to provide a good high band match, or resonance. The upper band patch also tends to cause a sharp roll off in return loss before the high band, that tends to reject frequencies from a co-located antenna transmitting below the high band.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.