LTE Standard Module Series
EC21_Series_Hardware_Design
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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.
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Figure 35: Microstrip Design on a 2-layer PCB
Figure 36: Coplanar Waveguide Design on a 2-layer PCB
Figure 37: Coplanar Waveguide Design on a 4-layer PCB (Layer 3 as Reference Ground)
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