4 RF Interface
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implemented in two ways: microstrip route and coplanar waveguide. To illustrate the design
principles, the following figures show the structural designs of microstrip route and coplanar
waveguide when the impedance line is at 50Ω.
⚫ Microstrip cable complete structure
Figure 21. Two-layer PCB microstrip line structure
⚫ Coplanar waveguide complete structure
Figure 22. Two-layer PCB coplanar waveguide structure