Rajeshkumar, V. ., and . S. . Raghavan. “A Compact Frequency Reconfigurable Split Ring Monopole Antenna for WLAN/WAVE Applications”. Applied Computational Electromagnetics Society Journal (ACES), vol. 30, no. 03, Aug. 2021, pp. 338-44, https://journals.riverpublishers.com/index.php/ACES/article/view/10611.