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.
Figure 7: Trace design: Layout
Figure 8: Reference design: Stack-up
•
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.
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Version 1.1, July 2023
