1. Institute of Electrophysics, Obuda University,Kandó Kálmán Faculty of Electrical Engineering,Budapest,Hungary
2. Institute of Electronics and Communication Systems, Obuda University,Kandó Kálmán Faculty of Electrical Engineering,Budapest,Hungary
3. Institute of Electrophysics, Obuda University,Kandó Kálmán Faculty of Electrical Engineering,Department of Computational Sciences,Budapest,Hungary