> One big jumper however becomes a slot antenna.

I was going to make a similar observation about slots before I saw
you'd added it at the end  - if the "go" path is on the top layer and
the "return" path is intersected by a break at 90 degrees the return
current must flow "around" the break and you get a radiating slot as
noted. Obviously it's not as clean and simple as that - currents will
be distributed depending on impedance etc but avoiding large
differences in go and between paths is highly desirable. That plus
minimising loop area of the overall current loop.


R
--=20
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