ディジタル回路基板から放射される電磁雑音量の要素雑音和による表現

概要

論文の詳細を見る
In order to verify an approach for evaluating total electromagnetic noise radiated from a printed circuit board (PCB), results of experimental investigation are given. It is concluded that the total radiated power is represented by a simple sum of radiation from each signal trace or loop on a PCB without any interference to be taken into account. Each trace or loop is considered as an elemental source. Experimental PCBs, which are two-layer PCBs mounting a few high-speed CMOS(HC)ICs on them, were prepared and electromagnetic radiation power from them was measured, No significant interference was found between the noises from separate signal traces because each of the noises is impulsive and rarely overlaps each other in the time domain.
社団法人映像情報メディア学会の論文
1991-11-21