Quadrifilar helix antenna
US6133891A · kind A · utility
37Cited by
6References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 13, 1998 |
| Grant date | Oct 17, 2000 |
| Priority date | — |
| Expiry date | Oct 13, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q1/362
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A quadrifilar helical antenna is provided having feed points connected to e individual helical antenna elements through a spiral coupling path. The spiral coupling path additionally is wound contrarily to the winding of the helix. Moreover, each path has variable dimensions to provide impedance matching.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.