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AirPrime EM7690 Hardware Integration Guide
Band
1.4 MHz
B38
B39
B40
B41
4
B42
B46
4
B48
B66
Yes
B71
Yes
1. Table contents are derived from 3GPP TS 36.521-1 v15.5.0, table 5.4.2.1-1.
2. Bandwidth for which a relaxation of the specified UE receiver sensitivity requirement (Clause 7.3 of 3GPP TS 36.521-1
v15.5.0) is allowed.
3. Bandwidth for which uplink transmission bandwidth can be restricted by the network for some channel assignments in
FDD/TDD co-existence scenarios in order to meet unwanted emissions requirements (Clause 6.6.3.2 of 3GPP TS 36.521-
1 v15.5.0).
4. B42/B48 disabled as of publication date, support pending regulatory approval.
3.7.
Antenna Specification
This appendix describes recommended electrical performance criteria for 3G/4G, GNSS 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 before the industrial design is finished to make sure that the best
antennas can be developed.
3.7.1.
Recommended WWAN Antenna Specifications
Table 3-6
Antenna Requirements
Parameter
Antenna System
Operating Bands —
Ant1
Operating Bands —
Ant2/3/4
VSWR of Ant1 and
Ant2
411139xx15
3 MHz
Yes
Yes
1
Requirements
(LTE) External multi-band 4x4 MIMO
antenna system (Ant1/ Ant2/Ant3/Ant4)
(3G) External multi-band antenna system
with diversity (Ant1/Ant2)
All supporting Tx and Rx frequency
bands.
All supporting Rx frequency bands, plus
GNSS frequency bands if Ant2 is used in
shared Diversity/MIMO/GNSS mode.
< 2:1 (recommended)
< 3:1 (worst case)
Rev
0.31
5 MHz
10 MHz
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
2
Yes
Yes
If Ant2 or Ant3 includes GNSS, then it
2
must also satisfy requirements in
7.
On all bands including band edges
RF Specifications
15 MHz
20 MHz
3
Yes
Yes
3
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
2
Yes
Yes
Comments
Table 3-
September 23, 2020
3
3
2
15
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