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

Author

Kayano, Yoshiki ; Tanaka, Motoshi ; Drewniak, James L. ; Inoue, Hiroshi

Author_Institution

Dept. of Electr. & Electron. Eng., Akita Univ., Japan

Volume

2

fYear

2003

fDate

11-16 May 2003

Firstpage

1114

Abstract

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.

Keywords

copper; electric current measurement; electromagnetic interference; finite difference time-domain analysis; microstrip lines; printed circuit layout; Cu; EMI design; FDTD simulation; common-mode current suppression; copper tape connection; empirical formula; ground plane connection; guard band; microstrip line; trace position; Cables; Copper; Electromagnetic interference; Electromagnetic radiation; Finite difference methods; Impedance; Microstrip; Printed circuits; Time domain analysis; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 2003. EMC '03. 2003 IEEE International Symposium on

Print_ISBN

0-7803-7779-6

Type

conf

DOI

10.1109/ICSMC2.2003.1429111

Filename

1429111