Hi All,

How to estimate the PCB Parasitic Resistance, inductance and trace capacitance values. please suggest any open source or free version tools.

Thanks,

Satya

**OpenEMS** is an open source electromagnetic field solver. If it can get you S or Z parameters, you can get to your distributed RLC model.

I have no idea what it can do, but I will take a guess and tell you its probably lousy. Maybe worth a try? If not, I suggest you get a free trial license of a real field solver

like Keysight ADS, CST Studio, AWR, Ansys electronics etc..... any number of commercial products that you can use temporarily are available. You didnt say if this was a one time need or not.

and you know, you can find all of these "fixed" for evaluation / educational purposes only.. The commercial ones I listed, all support importing PCB geometry and stackup for simulation.

PS: Looks like Saturn PCB can do this if you fit into the microstrip transmission line structure.. which is a very specific routing geometry. So there is that.. the full 3D solvers can do this on arbitrary geometries.