1. Department of Electrical and Electronic Engineering, Chubu University, Kasugai 487-8501, Japan
2. Department of Physics, College of Science and Humanities, Prince Sattam Bin Abdulaziz University, P.O. 173, Al-Kharj 11942, Saudi Arabia
3. Department of Physics, Faculty of Science, Zagazig University, 44519 Zagazig, Egypt