1. Department of ECE, Dhanekula Institute of Engineering and Technology, Gangur, AP, India
2. Antennas and Liquid Crystals Research Center, Department of ECE, Koneru Lakshmaiah Education Foundation, Vaddeswaram, AP, India
3. Department of ECE, Lendi Institute of Engineering and Technology, Vizianagaram, AP, India
4. Department of ECE, SRKR Engineering, Bhimavaram, AP, India