3 ms·
What I've been taught during my EE studies, is that the main reason to avoid square traces is for EMC reasons, mainly due to reflections due to the hard bounda
by markus92 7y ago
What I've been taught during my EE studies, is that the main reason to avoid square traces is for EMC reasons, mainly due to reflections due to the hard boundaries. Interesting that the article doesn't touch on that.
PCB design/layout is one of the more important factors influencing EMC. Taking it into account early in the PCB design phase saves you a lot of trouble during certification.
- krapht 7y agoThe article obliquely touches on it by mentioning how square bends affect the trace resistance and capacitance.
- crististm 7y agoYeah, it dances around the corners. Pun aside, signal reflections are the main reasons not to do it in high bandwidth circuits. Other circuits may have different reasons. I'm surprised about the hand-wavy way of ignoring a very well understood phenomenon.
- leetbulb 7y agoNot an EE by any stretch, but I've always thought this was the primary reason.
- russdill 7y agoReflections are caused by changes in impedance, not direction. The impedance at a 90° corner changes because there is more area which increases capacitance.