FD-TD analysis of electromagnetic radiation from modules-on-backplane configurations

Author

Li, Kevin ; Tassoudji, M. Ali ; Poh, Soon Y. ; Tsuk, Michael ; Shin, Robert T. ; Kong, Jin Au

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., MIT, Cambridge, MA, USA

Volume

37

Issue

3

fYear

1995

fDate

8/1/1995 12:00:00 AM

Firstpage

326

Lastpage

332

Abstract

The electromagnetic radiation from a modules-on-backplane configuration found in computers is analyzed by means of the finite-difference time-domain (FD-TD) technique. The issues pertaining to the effects of the modules in influencing the overall radiating capacity of the configuration are addressed. Analyses are facilitated by using simplified modules-on-backplane models and by using a voltage source as the source of electromagnetic energy at a connector between a module and the backplane. The potential for enhancement of spurious emissions by the module-on-backplane configuration is demonstrated. For modules of typical dimensions, resonance is observed at the hundreds of MHz frequency range. Comparisons between numerical predictions and measurements are conducted to validate the numerical method

Keywords

electromagnetic interference; finite difference time-domain analysis; modules; resonance; EMI; FD-TD analysis; connector; electromagnetic energy source; electromagnetic radiation; frequency range; measurements; modules-on-backplane configurations; numerical method; numerical predictions; radiating capacity; resonance; spurious emissions enhancement; voltage source; Backplanes; Connectors; Electromagnetic analysis; Electromagnetic modeling; Electromagnetic radiation; Finite difference methods; Frequency; Resonance; Time domain analysis; Voltage;

fLanguage

English

Journal_Title

Electromagnetic Compatibility, IEEE Transactions on

Publisher

ieee

ISSN

0018-9375

Type

jour

DOI

10.1109/15.406522

Filename

406522