1. University of L’Aquila,Dipartimento di Ingegneria Industriale e dell’Informazione e di Economia,L’Aquila,Italy
2. University of Technology,Lerch Laboratory of EM Research,Department Radio Electronics,Brno,Czech Republic
3. Missouri University of Science and Technology,EMC Laboratory,Rolla,MO,USA
4. Luleå University of Technology,Department of Computer Science, Electrical and Space Engineering,Luleå,Sweden