User's Manual

Smart Machine Smart Decision

SIM7500A_User Manual_V1.00 2017-06-30

optional for users according to application environment.

Two TVS are recommended in the table below.

Table 25: Recommended TVS

Package Part Number Vender

0201 LXES03AAA1-154 Murata

0402 LXES15AAA1-153 Murata

Note

：

SIMCom suggests the LTE auxiliary antenna to be kept on, since there are many high

bands in the designing of FDD-LTE. Because of the high insert loss of the RF cable and layout

lines, the receiver sensitivity of these bands above will have risk to meet the authentication

without the diversity antenna.For more details about auxiliary antenna design notice,please

refer to document [25]

4.3 Dipole Antenna PCB Layout Requirements

4.4 Dipole Antenna Reference Design PCB

Mount these devices with brown mark facing up. Units: mm

Line width should be designed to provide 50Ωimpedance matching characteristics.