Reference Design - Quectel EG915U-EU Manual

EGSM900
DCS1800
PCS1900
LTE-FDD B1 (10
MHz)
LTE-FDD B3 (10
MHz)
LTE-FDD B5 (10
MHz)
LTE-FDD B7 (10
MHz)
LTE-FDD B8 (10
MHz)
LTE-FDD B20 (10
MHz)
LTE-FDD B28 (10
MHz)

5.1.4. Reference Design

The module provides 2 RF antenna interfaces for antenna connection.
It is recommended to reserve a π-type matching circuit for better RF performance, and the π-type
matching components (R1, C1, C2 and R2, C3, C4) should be placed as close to the antenna as possible.
The capacitors are not mounted by default.
EG915U-EU_Hardware_Design
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Module
ANT_MAIN
ANT_BT/
WIFI
SACN
Figure 27: Reference Circuit for RF Antenna Interfaces
LTE Standard Module Series
Main
antenna
R1 0 R
C2
C1
NM
NM
R2 0 R
C4
C3
NM
NM
-102 dBm
-102 dBm
-102 dBm
-96.3 dBm
-96.3 dBm
-94.3 dBm
-94.3 dBm
-93.3 dBm
-93.3 dBm
-94.8 dBm
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