1. Advance RF and Microwave Research Group (ARFMRG), School of Electrical Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, UTM, Johor Bahru, Malaysia
2. Faculty of Engineering, Department of Electrical Engineering, Islamic University of Madinah, Madinah, Saudi Arabia
3. Department of Electronics and Power Engineering (EPE), PN-Engineering College (PNEC), National University of Sciences and Technology (NUST), Karachi, Pakistan
4. School of Electrical Engineering, Telkom University, Bandung, Indonesia