ORBIT FR GALILEO, GPS Base Station Reference Antennas - Manual

94
GALILEO/GPS
Base Station Reference Antennas
>
> Main use:
• Base station antenna for reference applications
covering GALILEO E5, E6, L1 bands and GPS L5, L2,
L1
bands.
> Delivered documents:
• Measured return loss
• Measured radiation pattern
• Phase center calibration report
> Related standards:
• IEC 60068-2/14; -2/6; -2/64; 2/32
• EN 55022
> Related services:
• Maintenance
• Dedicated fi lters for custom GALILEO, GPS and/or
GLONASS sub-bands
• Specifi c radome and mechanical support
➊ TECHNICAL PERFORMANCE
• Excellent phase center and group delay stability
• Highly stable radiation pattern (magnitude & phase)
• Optimized radiating element combined to a choke
ring provides increased multi-path immunity
• Wide bandwidth of the radiating helix
• Reduced ohmic losses (< 1.0 dB)
➋ DESIGN
• Sealed radome resists extreme weather
conditions
• High-performance LNA connector
• Reduced accommodation (easy to install
on the top of a mast)
• Integrated thermo-regulation for polar
applications (down to -60°C)
• Dedicated fi lters for out-of-band rejection and
dedicated LNA for pre-amplifi cation
BASE STATION ANTENNAS
Typical 3D radiation pattern
This antenna has been designed under an
ESA contract (European Space Agency)
specifi cally targeting fi xed ground segment
reference applications requiring very
strong constraints on phase center stability
and multi-path immunity.