S. Ram Kumar, M. V. S. Prasad. “A Compact Novel Multi-Band Monopole Antenna for WLAN/WiMAX/Sub-6 GHz 5G Applications”. International Journal of Advanced Science and Technology, Vol. 29, no. 04, Feb. 2020, pp. 11604-1, http://sersc.org/journals/index.php/IJAST/article/view/37867.