PCB traces routed near board edges and carrying high-speed signals are considered to contribute to EMI problems. Consequently, design maxims state that traces that might have intentional or unintentional high frequency components on them be kept away from board edges. This costs valuable surface area as boards become more densely designed. Further, design maxims concerning traces near board edges are not well quantified. The increase in EMI as a trace is routed increasingly closer to the PCB edge has been studied experimentally and with numerical modeling.
M. Tanaka et al., "FDTD and FEM/MOM Modeling of EMI Resulting from a Trace Near a PCB Edge," Proceedings of the IEEE International Symposium on Electromagnetic Compatibility, 2000, Institute of Electrical and Electronics Engineers (IEEE), Jan 2000.
The definitive version is available at http://dx.doi.org/10.1109/ISEMC.2000.875551
IEEE International Symposium on Electromagnetic Compatibility, 2000
Electrical and Computer Engineering
Keywords and Phrases
EMI Problems; FDTD Modeling; FEM/MOM Modeling; PCB Edge; PCB Layout; PCB Traces; Design Maxims; Electromagnetic Interference; Experiment; Finite Difference Time-Domain Analysis; Finite Element Analysis; High Frequency Components; High-Speed Signals; Method of Moments; Numerical Modeling; Printed Circuit Design; Printed Circuit Layout; Trace Routing
Article - Conference proceedings
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