Title :
Investigation of EMI on multilayer printed circuit boards: ΔI-noise and power supply decoupling
Author :
Costa, V. ; Preatoni, R. ; Caniggia, S.
Author_Institution :
Italtel Soc. Italiana Telecommun. SpA, Milan, Italy
Abstract :
The aim of the analysis reported in this paper is to investigate ΔI-noise in multilayer Printed Circuit Boards (PCB´s) with respect to the decoupling and the interplane capacitance of the on-board power distribution network. In investigating these phenomena a test set-up was used which emphasizes the problem of `power-noise´, and a simple model for the power bus has been developed. Experimental and analytical studies, and circuit simulation have been conducted to verify the model and the effects of decoupling capacitors. In this analysis the problem of ElectroMagnetic (EM) radiated emissions from such boards is also addressed
Keywords :
capacitance; circuit noise; electromagnetic interference; printed circuit design; printed circuit testing; ΔI-noise; EM radiated emissions; EMI; decoupling capacitors; interplane capacitance; multilayer PCBs; multilayer printed circuit boards; onboard power distribution network; power bus model; power supply decoupling; test setup; Capacitance; Capacitors; Circuit analysis; Circuit simulation; Circuit testing; Electromagnetic analysis; Electromagnetic interference; Nonhomogeneous media; Power systems; Printed circuits;
Conference_Titel :
Electromagnetic Compatibility, 1996. Symposium Record. IEEE 1996 International Symposium on
Conference_Location :
Santa Clara, CA
Print_ISBN :
0-7803-3207-5
DOI :
10.1109/ISEMC.1996.561408
