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Analysis and improvement of a spark plug for less radiated electromagnetic emissions

: Marczok, C.; Maaß, U.; Hoene, E.; Ndip, I.; Lang, K.-D.; Hasselberg, D.


Institute of Electrical and Electronics Engineers -IEEE-:
International Symposium on Electromagnetic Compatibility, EMC Europe 2014. Vol.1 : Gothenburg, Sweden, 1 - 4 September 2014; Proceedings
Piscataway, NJ: IEEE, 2014
ISBN: 978-1-4799-3225-2
ISBN: 978-1-4799-3227-6
ISBN: 978-1-4799-3226-9
International Symposium on Electromagnetic Compatibility (EMC Europe) <2014, Gothenburg>
Fraunhofer IZM ()

One of the oldest electromagnetic interference (EMI)-source in combustion engine vehicles is the spark plug. It causes interferences problems to surrounding electronic devices in a wide frequency range. In this contribution, this well established technology is extensively characterized and analyzed using a combination of numerical simulation and measurement from 1 kHz to 100 MHz. Based on these results, a perspective is given for an advanced mechanical construction to improve EMI in the aforesaid frequency range by implementing a filter capacitor into the spark plug.