How to create an "EMS" style particle system?

I’m trying to visualize an Electromagnetic Spectrum (Radio Waves specifically) via particle systems or possibly blueprints or even a Post-Processing material/unbound volume. Not really sure exactly how to get going with this.

Basically it would be similar in design to the Architecture of Radio app ([Example here][1]) where in the finalized version you could look around the game level, see various way-points over routers, cell phones, and other EMS emitting objects throughout the scene (I have the way-points working). Preferably the EM waves would also at times bounce off of walls and other collision meshes, while phasing through half the time (through the same objects).

Another example:

P.S. My apologies if this is in the wrong section! And thank you anyone for their help!