%0 Journal Article %T Pythagoras Tree: a Fractal Patch Antenna for Multi-Frequency and Ultra-Wide Bandwidth Operations %A Ankur Aggarwal %A Machavaram Venkata Kartikeyan %J PIER C %D 2010 %I EMW Publishing %R 10.2528/PIERC10062206 %X This paper shows the design of a fractal patch antenna, which uses a unique fractal geometry known as Pythagoras tree with co-planer waveguide (CPW) feeding. The antenna has been designed for dual band operation at the WLAN/WiMAX (2.4 GHz) and WiMAX (3.5 GHz) for Ultra-Wideband applications. The antenna was simulated using CST Microwave Studio. The fabricated antenna's measurement results were found to be in good agreement with the simulated ones. %U http://www.jpier.org/pierc/pier.php?paper=10062206