A study on influence of guard band on common-mode current related to a microstrip line

Influence of guard band on common-mode (CM) current related to a microstrip line (trace) has been studied experimentally and FDTD simulation. As the guard band, copper tape is connected along the entire edge of the ground plane. It is cleared that a guard band parallel to and near a trace is most ef...

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Published in2003 IEEE International Symposium on Electromagnetic Compatibility, 2003. EMC '03 Vol. 2; pp. 1114 - 1117 Vol.2
Main Authors Kayano, Y., Tanaka, M., Drewniak, J.L., Inoue, H.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2003
Subjects
Cables
Copper
Electromagnetic interference
Electromagnetic radiation
Finite difference methods
Impedance
Microstrip
Printed circuits
Time domain analysis
Voltage
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Summary:Influence of guard band on common-mode (CM) current related to a microstrip line (trace) has been studied experimentally and FDTD simulation. As the guard band, copper tape is connected along the entire edge of the ground plane. It is cleared that a guard band parallel to and near a trace is most effective in suppressing the CM current. An empirical formula to quantify the relationship between the position of a trace and CM current of the case with a guard band is proposed. Calculated results using the empirical formula and FDTD modeling are in good agreement, which indicates this empirical formula should be useful for developing EMI design guidelines.
ISBN:9780780377790
0780377796
DOI:10.1109/ICSMC2.2003.1429111