Quectel LPWA Series User Manual

LPWA Module Series
BG950A-GL&BG951A-GL_Hardware_Design
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5.2.3. Reference Design
The following is the reference circuit of GNSS antenna.
Figure 26: Reference Circuit of GNSS 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 module is designed with a passive antenna.
NOTE

Quectel LPWA Series Specifications

General

Brand	Quectel
Model	LPWA Series
Category	GSM/GPRS Modules
Language	English