Vanka, Saritha, et al. “Analysis and Design of a Multi Octave Circularly Polarized Monopole Antenna for UWB, X and Ku-Band Applications”. International Journal of Engineering & Technology, vol. 7, no. 3.4, June 2018, pp. 80-83, https://doi.org/10.14419/ijet.v7i3.4.16751.