HUAWEI ME909u-521 LTE LGA Module
Hardware Guide
Description of the Application Interfaces
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Figure 3-20 RF signal layout design about MAIN_ANT for reference:(the same for AUX
& GPS)
For the PCB designed by the user, the impedance of all the RF signal tracks must be
50 Ω. Generally, the impedance depends on the medium factor, track width, and
distance from the floor.
In order to reflect the rules of design, the following figures indicate the complete
structure of the microstrip and stripline with an impedance of 50 ohm as well as the
reference design for stack.
Figure 3-21 Complete structure of the microstrip
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