Electromagnetic Compatibility Analysis of Multilayer PCBs Using a Hybrid Finite Difference Time Domain (FDTD) - Partial Element Equivalent Circuit (PEEC) Method

Author

Cryan, M.J. ; Craddock, I.J. ; Penty, R.V. ; Railton, C.J. ; White, I.H.

Author_Institution

Centre for Communications Research, Department of Electronic and Electrical Engineering, University of Bristol, Bristol, BS8 1TR, UK. Tel: (+44) (0) 117 928 8206, Fax: (+44) (0) 117 954 5206 email: m.cryan@ieee.org

fYear

2001

fDate

24-26 Sept. 2001

Firstpage

1

Lastpage

4

Abstract

A hybrid FDTD/PEEC method is used to analyse radiation from multilayer PCBs. A Huygen´s surface is obtained from the PEEC method that can be used as an excitation for a traditional FDTD simulation from which radiation patterns, and hence EMC/EMI performance, can be obtained. The use of the Huygen´s excitation will remove the necessity to place 3 or 4 FDTD cells across the thin PCB tracks resulting in much reduced simulation times. Comparisons between pure FDTD and the hybrid method are shown for the simple case of a 50Â¿ microstrip line and good agreement is obtained for current distributions and radiation patterns. A pure FDTD simulation of a complex, multilayer PCB used in a 2.5Gb/s optical transceiver is carried out and initial results are presented.

Keywords

Circuit simulation; Current distribution; Electromagnetic analysis; Electromagnetic compatibility; Electromagnetic interference; Equivalent circuits; Finite difference methods; Microstrip; Nonhomogeneous media; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2001. 31st European

Conference_Location

London, England

Type

conf

DOI

10.1109/EUMA.2001.338949

Filename

4140017