Implement limits and warnings in pcb calculator (lp:#1848917)
Original report created by Mishka (mike-volokhov)
Hi,
I've faced an issue when estimating a coplanar waveguide using the PCB
Calculator. The PCB Calc produces slightly different results when compared
to http://wcalc.sourceforge.net and AppCad. Looks like math precision
issue.
Although resulting impedance value doesn't seem differ too much (it's like
47 Ohm in PCB Calc vs 50 Ohm in WCalc), but it makes significant difference
when deriving track width and especially metal spacing on very thin
substrates like polyimide.
Screenshots follow.
Thanks!
Original tags: pcb-calculator