Institution: | 1.Department of Physics, Koneru Lakshmaiah Educational Foundation, Vaddeswaram, India ;2.Department of Physics, NRI Institute of Technology, Pothavarappadu, India ;3.Antennas and Liquid Crystals Research Center, Department of ECE, Koneru Lakshmaiah Education Foundation, Vaddeswaram, India ;4.Department of Physics, Andhra Loyola College, Vijayawada, India ; |