Computer simulations and near-field measurements for the prediction of radiated EMI

Author

Icheln, C. ; Laitinen, T. ; Sippola, M. ; Siren, H. ; Sepponen, R. ; Vainikainen, P.

Author_Institution

Radio Lab., Helsinki Univ. of Technol., Espoo, Finland

Volume

2

fYear

1998

fDate

24-28 Aug 1998

Firstpage

878

Abstract

The possibility to predict the radiated electromagnetic interference (EMI) of small devices by means of computer simulations and near-field measurements was investigated. Both methods were applied to a simplified model of a switched mode power supply. The investigated frequency range was 30-500 MHz. The predicted values were compared to far-field measurements done in an anechoic chamber. The results show, that the radiation properties of a device can be determined with the near-field measurement procedure proposed. Although the computer simulations give less accurate estimation of the EMI they are useful as well

Keywords

anechoic chambers (electromagnetic); digital simulation; electric field measurement; electrical engineering computing; electromagnetic interference; magnetic field measurement; switched mode power supplies; 30 to 500 MHz; anechoic chamber; computer simulations; near-field measurement procedure; near-field measurements; radiated EMI prediction; radiated electromagnetic interference; switched mode power supply; Circuit simulation; Circuit testing; Computational modeling; Computer simulation; Electromagnetic interference; Frequency; Laboratories; Predictive models; Switched-mode power supply; USA Councils;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 1998. 1998 IEEE International Symposium on

Conference_Location

Denver, CO

Print_ISBN

0-7803-5015-4

Type

conf

DOI

10.1109/ISEMC.1998.750323

Filename

750323