1. Faculty of Engineering, Rajamangala University of Technology Krungthep,Department of Electrical and Telecommunication Engineering,Bangkok,Thailand
2. Research Center of Innovation Digital and Electromagnetic Technology (iDEMT) Faculty of Technical Education, King Mongkut's University of Technology North Bangkok,Bangkok,Thailand
3. School of Engineering King Mongkut's Institute of Technology Ladkrabang,Bangkok,Thailand,10520