Product Info

Smart LTE Module Series
SC20 Hardware Design
SC20_Hardware_Design 84 / 130
1)
It is recommended to use a passive GNSS antenna when LTE B13 or B14 is supported, as the use of
active antenna may generate harmonics which will affect the GNSS performance.
6.4.2. Recommended RF Connector for Antenna Installation
If RF connector is used for antenna connection, it is recommended to use the U.FL-R-SMT connector
provided by HIROSE.
Figure 39: Dimensions of the U.FL-R-SMT Connector (Unit: mm)
U.FL-LP serial connectors listed in the following figure can be used to match the U.FL-R-SMT.
Input Impedance (Ω): 50
Polarization Type: Vertical
Cable Insertion Loss: < 1dB
GNSS
Frequency range: 1559MHz~1609MHz
Polarization: RHCP or linear
VSWR: < 2 (Typ.)
Passive Antenna Gain: > 0dBi
Active Antenna Noise Figure: < 1.5dB
Active Antenna Total Gain: < 17dBi (Typ.)
NOTE