Wwan Antenna Recommendations; Table 14. Airprime Ar758X Series Wwan Antenna Recommendations - Sierra Wireless AirPrime AR7582 Hardware Integration Manual

Hardware Integration Guide
Pad Name
BA13 GND
BB11 GND
BB12 GND
BA7 GND
BA8 DIVERSITY_ANT
BA9 GND
BB7 GND
BB8 GND
1.3.4.1.

WWAN Antenna Recommendations

The table below defines the key characteristics to consider for antenna selection.
Table 13. AirPrime AR758x Series WWAN Antenna Recommendations
Parameter
Antenna system
Operating bands of
b
Ant1 and Ant2
VSWR of Ant1 and
Ant2
Total radiated
efficiency of Ant1 or
Ant2
Maximum antenna
gain
41110461XXXX
Direction
Input
Requirements
External multi-band 2x2 MIMO
antenna system (Ant1/Ant2)
698–960 MHz
1451–1512 MHz
1710–1995 MHz
2110–2170 MHz
2500–2700 MHz
1:1 (ideal)
< 2.5:1 (recommended)
> 50% on all bands
Must not exceed antenna gains due to
RF exposure and ERP/ EIRP limits,
as listed in the module's FCC grant.
Rev 0.12
Function
Primary Antenna Ground
Primary Antenna Ground
Primary Antenna Ground
Diversity Antenna Ground
Diversity Antenna Interface
Diversity Antenna Ground
Diversity Antenna Ground
Diversity Antenna Ground
Comments
a
Operating bands depend on module's
supported bands/modes
On all bands including band edges

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.
Introduction
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