Islam, M. M., M. T. Islam, M. R. Iqbal Faruque, S. S. Islam, and N. Misran. “Compact Wrench-Shaped Resonator Loaded UWB Antenna With Notched Frequency Characteristics”. Journal of Telecommunication, Electronic and Computer Engineering (JTEC), vol. 8, no. 3, June 2016, pp. 85-88, https://jtec.utem.edu.my/jtec/article/view/1007.