Shanghai SIMCom Wireless Solutions Limited 8PSA301 ユーザーズマニュアル
Smart Machine Smart Decision
26
DRX Antenna reference circuit
The recommended circuit is shown as below:
RF connector
(optional)
C1
Module
131
ANT_DRX
GND
C2
132
R1
Matching circuit
Diversity ANT
130
GND
Figure 27: DRX antenna recommended circuit
R1, C1 and C2 are antenna matching components in Figure 28, the value of these components are determined
according to the antenna tuning results. By default, R1 is 0Ω, C1 and C2 are reserved. The RF connector in Figure
28 is used to ensure the accuracy and convenience of the conduction testing, so SIMCOM suggest keeping it. If
according to the antenna tuning results. By default, R1 is 0Ω, C1 and C2 are reserved. The RF connector in Figure
28 is used to ensure the accuracy and convenience of the conduction testing, so SIMCOM suggest keeping it. If
considering Low-Cost BOM, user can cancel the connector.