Antenna Specification; Table A-1: Antenna Requirements - Sierra Wireless AirPrime MC7710 Product Technical Specification & Customer Design Manuallines

A: Antenna Specification

Table A-1: Antenna requirements

Parameter
Antenna system
Operating bands of Ant1
c
and Ant2
VSWR of Ant1 and Ant2
Total radiated efficiency of
Ant1 and Ant2
Radiation patterns of Ant1
and Ant2
Rev 6 Mar.13 Proprietary and Confidential - Contents subject to change
This appendix describes recommended electrical performance
criteria for main path, diversity path, and GPS antennas used with
AirPrime embedded modules.
The performance specifications described in this section are valid
while antennas are mounted in the host device with antenna feed
cables routed in their final application configuration.
Note: Antennas should be designed
to make sure that the best antennas can be developed.
a
Requirements
External multi-band 2x2 MIMO
b
antenna system (Ant1 / Ant2)
700–960 MHz
1710–1990 MHz
2110–2170 MHz
2500–2700 MHz
1:1 (ideal)
< 2.5:1 (recommended)
> 50% on all bands
Nominally Omni-directional
radiation pattern in azimuth plane.
before
the industrial design is finished
Comments
If Ant2 includes GPS, then it must also satisfy
requirements in Table A-2 on page
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.
A
67.
65