Pehlivan, M., and Y. Asci. “High Gain Ultra-Wideband Parabolic Reflector Antenna Design Using Printed LPDA Antenna Feed”. American Scientific Research Journal for Engineering, Technology, and Sciences, vol. 38, no. 2, Dec. 2017, pp. 252-61, https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/3702.