Characterization and Compensation of Beat-Induced Intermodulation Effects in Analog Circuits

Conference: ANALOG '05 - 8. GMM/ITG-Diskussionssitzung: Entwicklung von Analogschaltungen mit CAE-Methoden
03/16/2005 - 03/18/2005 at Hannover, Deutschland

Proceedings: ANALOG '05

Pages: 6Language: englishTyp: PDF

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Nitsch, J.; Gronwald, F. (Otto-von-Guericke-University Magdeburg, Institute for Fundamental Electrical Engineering and EMC, PB 4120, 39016 Magdeburg, Germany)
Korovkin, N.; Solovieva, E. (St. Petersburg Electrotechnical University, Department of Theoretical Electrical Engineering, 197376 St.-Petersburg, Russia)

We examine the generation of low-frequency electromagnetic interference fields from the intermodulation of high-frequency electromagnetic interference fields at nonlinear electronic elements. The intermodulation effect itself can analytically be calculated by means of Picard iteration. Since the intermodulation effect represents a significant threat to sensitive electronic equipment it is outlined how this iteration procedure can also be applied to construct inverse systems that protect nonlinear analog circuits against low-frequency disturbances.