UMTS/HSPA(+) Module Series
UC200T-EM Hardware Design
UC200T-EM_Hardware_Design 43 / 68
4
Antenna Interfaces
UC200T-EM antenna interfaces include a main antenna interface. The impedance of the antenna port is
50
Ω.
4.1.
Main Antenna Interface
4.1.1.
Pin Definition
The pin definition of main antenna interface is shown below.
Table 24: Pin Definition of the RF Antenna
4.1.2.
Operating Frequency
Table 25: Module Operating Frequencies
4.1.3.
Reference Design of RF Antenna Interface
A reference design of ANT_MAIN antenna pads is shown as below. It should reserve a π-type matching
circuit for better RF performance. The capacitors are not mounted by default.
Pin Name
Pin No.
I/O
Description
Comment
ANT_MAIN
49
IO
Main antenna pad
50Ω impedance
3GPP Band
Transmit
Receive
Unit
EGSM900
880~915
925~960
MHz
DCS1800
1710~1785
1805~1880
MHz
WCDMA B1
1920~1980
2110~2170
MHz
WCDMA B8
880~915
925~960
MHz