et. al., Tejaswi Jadhav,. “A Dual Wideband Planer Inverted-F Antenna Using Reactive Impedance Surface and Defective Ground Surface for WLAN X-Band Applications”. Turkish Journal of Computer and Mathematics Education (TURCOMAT), vol. 12, no. 13, June 2021, pp. 2365-70, doi:10.17762/turcomat.v12i13.8927.