Robuta

https://www.comsol.com/blogs/wilkinson-power-divider-simulation/?setlang=1
Wilkinson power divider, a common three-port power divider used in radio communication systems, can be modeled using the RF Module in COMSOL
wilkinson power dividercomsol blogsimulation
https://keenlionmicrowave.com/
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power dividerrfwilkinson
https://www.comsol.com/model/sma-connectorized-wilkinson-power-divider-12303
Use this model or demo application file (and its accompanying instructions) as a starting point for your own simulation work.
wilkinson power dividersma