Parasitic modes on printed circuit boards and their effects on EMC and signal integrity

Author

Schuster, Christian ; Fichtner, Wolfgang

Volume

43

Issue

4

fYear

2001

fDate

11/1/2001 12:00:00 AM

Firstpage

416

Lastpage

425

Abstract

In this paper, parasitic modes, such as slotline, parallel plane, and surface wave (SW) modes, commonly found on printed circuit boards (PCBs) are analyzed and their effects on electromagnetic compatibility (EMC) and signal integrity are discussed. The analysis is based on numerical simulations using the finite difference time domain (FDTD) method which is shown to be very well suited for rigorous modeling of parasitic mode effects. The EMC and signal integrity problems discussed include power loss, crosstalk, ground bounce, and free space radiation. Design guidelines for improved EMC and signal integrity are derived from the results obtained. Comprehensive simulation and characterization of SWs using FDTD is presented for the first time

Keywords

electromagnetic compatibility; finite difference time-domain analysis; printed circuits; slot lines; surface electromagnetic waves; EMC; FDTD method; PCB; crosstalk; design guidelines; electromagnetic analysis; electromagnetic compatibility; electromagnetic far-field; electromagnetic near-field; finite difference time domain; free space radiation; ground bounce; numerical simulations; parallel plane mode; parasitic modes; power loss; printed circuit boards; reflection coefficients; signal integrity; slotline mode; surface wave mode; Crosstalk; Electromagnetic analysis; Electromagnetic compatibility; Finite difference methods; Numerical simulation; Printed circuits; Signal analysis; Slotline; Surface waves; Time domain analysis;

fLanguage

English

Journal_Title

Electromagnetic Compatibility, IEEE Transactions on

Publisher

ieee

ISSN

0018-9375

Type

jour

DOI

10.1109/15.974621

Filename

974621