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4
Antenna Interfaces
The module includes one main antenna interface (ANT_MAIN) and one Rx-diversity antenna interface (ANT_DIV)
which is used to resist the fall of signals caused by high speed movement and multipath effect. The antenna ports
have an impedance of 50 Ω.
4.1. Main/Rx-diversity Antenna Interface
4.1.1. Pin Definition
The pin definition of Main/Rx-diversity antenna interfaces are shown below.
Table 28: Pin Definition of Main/Rx-diversity Antenna Interfaces
Pin Name
Pin No.
143
ANT_MAIN
170
ANT_DIV
4.1.2. Operating Frequency
Table 29: Module Operating Frequencies
3GPP Band
LTE-FDD B2
LTE-FDD B4
LTE-FDD B25
LTE-FDD B66
LTE-FDD B12
LTE-FDD B13
AG521R-NA_QuecOpen_Hardware_Design
I/O
Description
AI/AO
Main antenna interface
AI
Receive diversity antenna interface
Transmit
1850-1910
1710-1755
1850-1915
1710-1780
699-716
777-787
Automotive Module Series
AG521R-NA QuecOpen Hardware Design
Comment
50 Ω impedance
50 Ω impedance
Receive
1930-1990
2110-2155
1930-1995
2110-2200
729-746
746-756
Unit
MHz
MHz
MHz
MHz
MHz
MHz
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