Low profile, wideband GNSS dual frequency antenna structure
US9105961B2 · kind B2 · utility
1Cited by
12References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2014 |
| Grant date | Aug 11, 2015 |
| Priority date | — |
| Expiry date | Mar 17, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q9/0457
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
GNSS signals are centered around two bands, L1 and L2, and antennas must cover both these bands for good RTK performance. GPS is at a lower frequency in both bands than the Russian GLONASS system. What is described herein is a method of constructing a low profile dual frequency wideband antenna with excellent polarization and signal reception for both GPS and GLONASS. This technique minimizes the impact of tolerances of the dielectrics, thicknesses and tuning by optimal construction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.