Hello,
Is there any transmission line components for simulation?
I couldn’t find any so i did it the ugly way.
I have managed to simulate lossless transmission lines using a 4 port connector and naming it T1 and with value “Z0=50 TD=10NS”.
However this seems prone to errors and hard to make a schematic that looks understandable.
Sincerely Jimmie
I have been using a transformer symbol to do my transmission lines in KiCad, because it looks the most similar to LTspice’s TLINE component. See attached project ZIP for more details.
tline_test.zip (2.8 KB)
That certainly looks nicer and more practical.
Thank you for that!
Yep, just make sure you pay attention to the “Alternate Node Sequence” for T1 in the example project I provided. The pin order needs to be reshuffled around because a transmission line needs 1 & 2 on the left and 3 & 4 on the right.
Did a simple image search for:
https://duckduckgo.com/?q=transmission+line+spice&t=h_&iar=images&iax=images&ia=images
I think I like this one best:
Once you’ve figured out how to make custom schematic symbols in KiCad, drawing such a symbol would take about 10 minutes or less.
