HUAWEI MU709 Series HSPA+ LGA Module
Hardware Guide
Description of the Application Interfaces
Issue 09 (2017-12-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
43
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
Ω as well as the
reference design for stack.
Figure 3-21
Complete structure of the microstrip
Figure 3-22
Complete structure of the stripline
Figure 3-23
Pad for the RF interface
