Specifications

Product Technical Specification & Customer Design Guidelines
70 Proprietary and Confidential - Contents subject to change 4114634
Total radiated efficiency of
Ant1 and Ant2
> 50% on all bands • Measured at the RF connector.
• Includes mismatch losses, losses in the
matching circuit, and antenna losses,
excluding cable loss.
• Sierra Wireless recommends using
antenna efficiency as the primary
parameter for evaluating the antenna
system.
Peak gain is not a good indication of
antenna performance when integrated
with a host device (the antenna does not
provide omni-directional gain patterns).
Peak gain can be affected by antenna
size, location, design type, etc.—the
antenna gain patterns remain fixed unless
one or more of these parameters change.
Radiation patterns of Ant1
and Ant2
Nominally Omni-directional
radiation pattern in azimuth plane.
Envelope correlation
coefficient between Ant1
and Ant2
• < 0.4 on 791–894 MHz and
925–960 MHz bands
• < 0.2 on 1805–1990 and
2110–2170 MHz bands
• < 0.1 on 2620–2690 MHz
band
Mean Effective Gain of
Ant1 and Ant2 (MEG1,
MEG2)
 -3 dBi
Ant1 and Ant2 Mean
Effective Gain Imbalance I
MEG1 / MEG2 I
< 2 dB for MIMO operation
< 6 dB for diversity operation
Maximum antenna gain Must not exceed antenna gains
due to RF exposure and ERP/
EIRP limits.
Table A-1: Antenna requirements (Continued)
a
Parameter Requirements Comments