Quectel EG21-G - Page 60

LTE Module Series
EG21-G Hardware Design
EG21-G_Hardware_Design 59 / 100
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Figure 31: Microstrip Design on a 2-layer PCB
Figure 32: Coplanar Waveguide Design on a 2-layer PCB
Figure 33: Coplanar Waveguide Design on a 4-layer PCB (Layer 3 as Reference Ground)