Multiband PIFA antenna with Koch Fractal slot for GPS, LTE and WiMAX wireless communication systems

In this article, a five frequency band PIFA antenna for GPS (1.57 GHz), LTE (2.6 GHz) and WiMAX (3.17GHz, 4.1GHz, 4.83GHz) applications is presented. The proposed consists of with Koch fractal slot at the first iteration that was applied to all sides square located in center radiating element. patch modification made multiband also contributed miniaturize compared initial form. results presented work are carried out under CST MWs software those obtained by HFSS where good agreement recorded. has gain ranging from 1.13dB 6.01dB corresponding bands achieved.