[SI-LIST] Re: Conductor loss reduction at High Frequency

  • From: "Tom Biggs" <tbiggs@xxxxxxxxxxxxxxxxxxxxx>
  • To: <si-list@xxxxxxxxxxxxx>
  • Date: Wed, 29 Aug 2007 17:18:44 -0700

From: steve weir
" EMI issues from microstrip are often greatly overstated.  The big
offenders on a PCB are:  the cavity edges, and the components radiating
above the PCB surface. Doug Smith has some good information on these
types of subjects.  Lee is passionate about his practical experience
with M/S and no significant EMI issues."

I was thinking more about the effect of making the surface trace wider
(for lower loss) and further away from the ground plane. I assume that
this increases EMI even though the impedence isn't changing.

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