Hello,

I wonder how to determine the Δ - Y equivalent of mutually coupled inductors? We can easily do this transformation with resistors and capacitors. It would also be easy for inductors if there is no mutual inductance. However, I'm stuck in these questions: What if mutual inductance exists -means that inductors are mutually coupled- ? How can we do Δ-to-Y transform or Y-to-Δ transform?

Thanks.

 

Hello, right back at you!
That my Friend,is a very good question.
A three-way power divider/summer in the Wilkinson configuration can be symmetrically fabricated in stripline if the Y resistive balancing network is replaced by a Δ resistive network. Port-to-port isolation in a stripline circuit at 2 GHz exceeded 27 dB; loss was below 0.15 dB
https://www.researchgate.net/public...a_Three-Way_Hybrid_Junction/citation/download