Users Manual Part 2

SIM8260A_Hardware Design_V1.05
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
When multiple Tuners are needed, pay attention to the distinction of the same device USID under
the same group of mipi.

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/5G antennas and GNSS antenna.
Table 60: 3G/4G/5G/GNSS antennas
Parameter
Requirement
Operating Frequency
See Table 7 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
Table 61: GNSS antenna (for dedicated GNSS antenna only)*
Parameter
Requirement
Operating Frequency
L1: 1559~1609MHZ
L5: 1166~1187MHz
Direction
Hemisphere, face to sky
Antenna Gain
> 2 dB
ic
Impedance
50 Ω
Efficiency
> 50 %
Max. Input Power
50W
VSWR
< 2
Polarization
RHCP or Linear
Noise Figure for Active Antenna
< 1.5
NOTE