Electromagnetic radiation properties of a printed circuit board with a slot in the ground plane

Author

Ko, Yakushi ; Ito, Kenji ; Kudo, Junichi ; Sudo, Toshio

Author_Institution

Manuf. Eng. Res. Center, Toshiba Corp., Yokohama, Japan

fYear

1999

fDate

1999

Firstpage

576

Lastpage

579

Abstract

In this paper, the electromagnetic radiation simulation and measurement of a simplified printed circuit board (PCB) is described. The PCB is a microstrip line structure with a slot in the ground plane. The authors calculated scattering parameter S₁₁ and radiated emission by applying a full three-dimensional electromagnetic simulator based on the finite-element method. To verify the simulation results, a test PCB was designed and evaluated. The S₁₁ and both the near-field and far-field were measured and the experimental results were in agreement with that of the simulation. The authors have confirmed that the proposed method of placing a bypass capacitor across the slot is effective to suppress the radiated emission

Keywords

electromagnetic compatibility; electromagnetic interference; printed circuit testing; printed circuits; 3-D electromagnetic simulator; EMC; EMI; PCB; bypass capacitor; electromagnetic radiation measurement; electromagnetic radiation simulation; far-field; finite-element method; ground plane slot; microstrip line structure; near-field; printed circuit board; radiated emission suppression; scattering parameter; Capacitors; Circuit simulation; Electromagnetic measurements; Electromagnetic radiation; Electromagnetic scattering; Finite element methods; Microstrip; Printed circuits; Scattering parameters; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 1999 International Symposium on

Conference_Location

Tokyo

Print_ISBN

4-9980748-4-9

Type

conf

DOI

10.1109/ELMAGC.1999.801393

Filename

801393