Krishna Kanth Varma, P, Ch Murali Krishna, and G Santhi Ratna Priyanka. “Performance Improvement of Sri Yantra Shaped Multiband Antenna With Defected Ground Structure”. International Journal of Engineering & Technology 7, no. 3.31 (August 24, 2018): 40–44. Accessed May 3, 2024. https://sciencepubco.com/index.php/ijet/article/view/18197.