Specifications

SIM7912&SIM7906 Hardware Design V1.02
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Figure 35: LGA package Tuner mipi interface
1. When multiple Tuners are needed, pay attention to the distinction of the same device USID under the
same group of mipi;
2. For details please refer to the Antenna Tuner Reference Design document and contact SIMCom
support teams.
4.2.3 Antenna Requirements
The following table shows the requirements on 3G/4G antennas and GNSS antenna.
Table 40: 3G/4G/GNSS antennas
Parameter
Requirement
Operating Frequency
See Table 37: SIM7912 operating frequencies for each
antenna
Direction
Omni Directional
Gain
> -3dBi (Avg)
Impedance
50 Ω
Efficiency
> 50 %
Max. Input Power
50W
VSWR
< 2
Isolation
20dB is preferred
Cable Insertion Loss <1GHz
<1dB
Cable Insertion Loss 1GHz~2.2GHz
<1.5dB
Cable Insertion Loss 2.3GHz~2.7GHz
<2dB
Cable Insertion Loss 3.3GHz~6GHz
<2.5dB
NOTE