Specifications

Product Technical Specification & Customer Design Guidelines
72 Proprietary and Confidential - Contents subject to change 4114634
Antenna tests
The following guidelines apply to the requirements described in Tabl e A - 1 o n
page 69 and Table A-2 on page 71:
Perform electrical measurements at room temperature (+20°C to +26°C)
unless otherwise specified
For main and diversity path antennas, make sure the antennas (including
contact device, coaxial cable, connectors, and matching circuit with no more
than six components, if required) have nominal impedances of 50
across
supported frequency bands.
All tests (except isolation/correlation coefficient)—Test the main or diversity
antenna with the other antenna terminated.
Any metallic part of the antenna system that is exposed to the outside
environment needs to meet the electrostatic discharge tests per IEC61000-4-
2 (conducted discharge +8kV).
The functional requirements of the antenna system are tested and verified
while the embedded module’s antenna is integrated in the host device.
Note: Additional testing, including active performance tests, mechanical, and accelerated
life tests can be discussed with Sierra Wireless’ engineering services. Contact your Sierra
Wireless representative for assistance.
Gain Maximum gain and uniform
coverage in the high elevation
angle and zenith.
Gain in azimuth plane is not
desired.
Average 3D gain >-5dBi
Isolation between GNSS
and Ant1
> 10 dB in all uplink bands
Typical VSWR < 2.5:1
Polarization Any other than LHCP (left-hand
circular polarized) is acceptable.
Table A-2: GNSS standalone antenna requirements (Continued)
Parameter Requirements Comments