[SI-LIST] Does power/ground pair edege radiation noise really matter in the EMI test?
- From: liuluping 41830 <liuluping@xxxxxxxxxx>
- To: si-list@xxxxxxxxxxxxx
- Date: Thu, 23 Dec 2010 18:53:48 +0800
Dear all:
The PDN noise voltages at the edges of a PCB are potential electromagnetic
interference sources,the noise may be produced by SSN or cavity resonance. Many
paper ,such as EBG technology,based on this suppose,but does this noise really
matter in a typical digital board which include many high speed memory and
serdes ?Does any test analysis that the plane edge noise account for how many
percent in the total radiation noise ?
Thanks and regards,
LIU Luping
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