I fear that might be too broad but for educational experiments, I would like to know as specifically as possible how to simulate the induced voltage in a PCB loop (let´s call it Loop 1) as an effect/result to a second loop that is placed in some distance nearby on the PCB (Loop 2).
For Loop 2, I would like to specify a specific voltage waveform (e.g. sine or rectangular waves or even something "arbitrary versus time". The geometry of the PCB and the position/shape of the loops is given. It should be rather easy to experiment with shape/geometry and distance between the loops (GUI with modeling capabilities?)
I am not sure If I need a "fullwave" 3D electromagnetic simulator for that and what the proper formulation/solution technieque would be. Also I am not sure If there is some free software for that or If I would need something like Keysight ADS or Ansys HFSS or something like that (just to name some packages I have heared of).
My first guess would be that I need some 3D EM field solver that can calculate the mutual coupling between the two structures. If I know that coupling coefficient, I could use that information to use a lumpled element model (like a transformer) based on the coupling coefficient and then simulate the induced voltage by something like LTspice? However, I am not even sure if that mutual coupling is frequency dependant in the range of tens of MHz to ~1GHz and if there is some free software I could use for that purpose?