1. University of Chittagong,Department of Physics,Chattogram,Bangladesh,4331
2. King Abdulaziz University,Department of ECE,Jeddah,Saudi Arabia,21589
3. Universiti Kebangsaan Malaysia,Department of EES Engineering,Bangi,Malaysia,43600
4. Universiti Kebangsaan Malaysia,Pusat Sains Angkasa (ANGKASA),Bangi,Malaysia,43600