GHAHRAMANI, Mehdi, Hamid VAHDATY, and Yashar ZEHFOROOSH. 2019. “Ultra Wideband Multi-Segment Fractal Antenna With Circular Polarization for WLANWiMAX Applications”. International Journal of Natural and Engineering Sciences 7 (2):13-16. https://ijnes.org/index.php/ijnes/article/view/158.