2 ms·
Can you elaborate on the cascading s-parameters bit?
by elcritch 6y ago
Can you elaborate on the cascading s-parameters bit?
- jleahy 6y agoSure, let’s say you have an s-parameter network that represents a PCB. You have 10 ports, 1 for the DC-DC converter, one for an ASIC and 8 for capacitors. You take s-parameter models of the capacitors from the vendor (Murata, AVX, etc) and tie off the ports of the main network to make a 2-parameter network. With a 2-parameter network you can now calculate the equivalence impedance (which is a function of frequency) and plot it or do a spice simulation with ngspice. scikit-rf is one tool that can load touchstone files and perform these kinds of transformations.
- elcritch 6y agoThanks! Seems like something that could be added to KiCad, well, if I could decipher the API.