9
3.
RF Specifications
The EM919
1
includes Four MHF4 RF connectors for use with host-supplied antennas, and eight
MHF7S connectors for use with up to four mmWave antenna modules (2 connectors per antenna
module):
Figure 3-1
Module Connectors Include Image with Spacing Info
Sub-6G/GNSS connectors:
Main: Primary Tx/PRx path for 3G/4G/5G (except for n41)
Auxiliary: Diversity Rx (except for n41) and GNSS L1
MIMO1: MIMO1 Rx Path and n41 TRx
MIMO2: MIMO2 Rx Path and n41 DRx and GNSS L5
mmWave connectors:
Eight connectors — Up to four mmWave antenna modules (QTM525 or QTM527), two
connectors as a pair (H/V) for each. The EM9190 module does not have integrated antennas.
Refer to
Table 3-1
for each pair of coaxial connections. For low-power usage, if not all 4
QTM525 modules are equipped, integration sequence from QTM0 to QTM3 is recommended,
leave unused connectors NC (Contact
Dejero Labs Inc
as the RFC has to be updated to
reflect the number of QTMs). Note that for high-power usage, it’s not recommended to leave
any QTM527 NC as it will violate 3GPP EIRP compliance for PC1.
Table 3-1
mmWave Port Assignment
QTM
P_ON
QTM525 IF port <-> mmWave IF Connector
QTM527 IF port <-> mmWave IF Connector
IF1
IF2
IF1
IF2
QTM0
QTM0_PON
QTM0_H <-> IFH1
QTM0_V <-> IFV4
QTM0_H <-> IFH1
QTM0_V <-> IFV4
QTM1
QTM1_PON
QTM1_H <-> IFH4
QTM1_V <-> IFV1
QTM1_H <-> IFH2
QTM1_V <-> IFV3
QTM2
QTM2_PON
QTM2_H <-> IFH2
QTM2_V <-> IFV3
QTM2_H <-> IFH3
QTM2_V <-> IFV2
QTM3
QTM3_PON
QTM3_H <-> IFH3
QTM3_V <-> IFV2
QTM3_H <-> IFH4
QTM3_V <-> IFV1
August
2
2
, 202
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