Dr.R. Krishnamoorthy, Dr.V. Amudha,C. Malarvizhi, M. Thirumali, T. Dineshkumar. “Optimal Micro-Strip Antenna Design & Analysis of Rectangular Patchwith Co-Axial Feeder”. International Journal of Advanced Science and Technology, Vol. 29, no. 06, June 2020, pp. 7969-75, http://sersc.org/journals/index.php/IJAST/article/view/25169.