Quectel SC66 Hardware Design page 101

Smart LTE Module Series
SC66 Hardware Design
impedance. The following are reference designs of microstrip line or coplanar waveguide with different
PCB structures.
Figure 37: Microstrip Design on a 2-layer PCB
Figure 38: Coplanar Waveguide Design on a 2-layer PCB
Figure 39: Coplanar Waveguide Design on a 4-layer PCB (Layer 3 as Reference Ground)
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