Juma'a, Fatimah K., and Falih M. Alnahwi. “Design and Simulation of Butterfly-Shaped Filtenna With Dual Band Notch for Portable UWB Applications”. Iraqi Journal for Electrical and Electronic Engineering, vol. 17, no. 1, May 2021, pp. 100-6, https://doi.org/10.37917/ijeee.17.1.12.