Optimized receive antenna and system for precision GPS-at-GEO navigation
US7489271B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2007 |
| Grant date | Feb 10, 2009 |
| Priority date | — |
| Expiry date | Jul 22, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q11/083
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A GPS-at-GEO system is provided that includes a receive antenna design that enables improved tracking of GPS space vehicle side-lobe signals. The receive antenna design is a conical mode helix antenna configured to produce a conical mode radiation pattern, which has zero gain at Nadir and higher gain in the side-lobe signal regions. The conical mode radiation pattern provides several advantages for GPS-at-GEO navigation applications. For example, this mode provides higher gain in the GPS space vehicle side-lobe signal regions for improved acquisition and tracking performance and lower gain at Nadir, providing reduced noise temperature and higher signal to noise ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.