Title :
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
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;
Conference_Titel :
Electromagnetic Compatibility, 1998. 1998 IEEE International Symposium on
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-5015-4
DOI :
10.1109/ISEMC.1998.750323
