Reference Design; Layout Guidelines - Quectel BG950A-GL Manual

5.2.3. Reference Design

The following is the reference circuit of GNSS antenna.
.
NOTE
BG950A-GL/BG951A-GL module is designed with a passive antenna.

5.3. Layout Guidelines

The following layout guidelines should be taken into account in application designs.
Maximize the distance between GNSS antenna and main antenna.

Digital circuits such as (U)SIM card, USB interface, camera module, display connector and SD card

should be kept away from antennas.
Use ground vias around the GNSS trace and sensitive analog signal traces to provide coplanar

isolation and protection.
Keep 50 Ω characteristic impedance for ANT_GNSS trace.

Refer to Chapter 5.2 for GNSS antenna reference design and antenna installation information.
BG950A-GL&BG951A-GL_Hardware_Design
Figure 26: Reference Circuit of GNSS Antenna
LPWA Module Series
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