Trace Design: Layout; Reference Design: Stack-Up - We TARVOS-III Migration Manual

WIRELESS CONNECTIVITY & SENSORS
ANR022 - Radio module cross migration guide
To reference the end device to the Würth Elektronik eiSos' FCC ID it is manda-
tory to use the trace design. Based on the end application and antenna option
needed, the user can implement one of the two variants of the trace designs.
Top layer is used for routing, filled with ground plane except area under the module and
antenna free area.
Second layer is filled with ground plane, except the antenna free area.
Third layer is the supply layer, except antenna free area. Some routing is allowed, not
dividing the supply layer in to many or too small parts.
Bottom layer is used for routing and filled with ground.
Version 1.1, July 2023
Figure 7: Trace design: Layout
Figure 8: Reference design: Stack-up
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