Quectel LPWA Series Hardware Design

LPWA Module Series
BG950A-GL&BG951A-GL_Hardware_Design
60
/89
For user’s PCB, the characteristic impedance of all RF traces should be controlled to 50 Ω. The
impedance of the RF traces is usually determined by the trace width (W), the materials’ dielectric constant,
the height from the reference ground to the signal layer (H), and the spacing between RF traces and
grounds (S). Microstrip or coplanar waveguide is typically used in RF layout to control characteristic
impedance. The following are reference designs of microstrip or coplanar waveguide with different PCB
structures.
Figure 25: Microstrip Design on a 2-layer PCB
Figure 26: Coplanar Waveguide Design on a 2-layer PCB

Quectel LPWA Series Specifications

General

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