If Isolation; Mmwave And Sub-6 Ghz Antennas Coexistence; Mmwave If Port Mapping - Quectel RM510Q-GL Hardware Design

1.2–3.6 GHz
6–10 GHz

5.1.2.3. IF Isolation

IF isolation requirements for proper operation at 6–10 GHz operating frequency are as follows:
Total system isolation between an IF path (combined PCB, cables, connectors, and so on) and the
connected antenna module should be more than 35 dB, and the isolation between an IF path and other
antenna modules should be more than 25 dB.

5.1.2.4. mmWave and Sub-6 GHz Antennas Coexistence

Isolation between mmWave and sub-6 GHz antennas: > 20 dB
The following table shows the isolation requirements between IF cable and Sub-6 GHz antennas.
Table 33: Isolation Requirements between IF cable to Sub-6 GHz Antennas
Range
100 MHz – 1 GHz
1–6 GHz
6–10 GHz

5.1.3. mmWave IF Port Mapping

RM510Q-GL supports QTM525(power class 3) and QTM527(power class 1). IF port mapping as shown
below.
Table 34: mmWave IF Port Mapping
Group QTM_Pon
1 QTM0_PON
RM510Q-GL_Hardware_Design
< 4 dB
< 7 dB (from the IFIC to the RFIC)
< 5 dB (from the RM510-GL to QTM525)
Isolation Requirement
75 dB
70 dB
65 dB
RM510Q-GL
IFV4
IFH1
5G Module Series
RM510Q-GL Hardware Design
QTM527
QTM527-1_IF2 (V)
QTM527-1_IF1 (H)
QTM525
IF2 (V)
IF1 (H)
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