Analysis of ultra wideband fractal antenna designs and their applications for wireless communication: A survey

Due to the growth in wireless communication; the user demand for multiband, low cost, high gain, wideband and electrically small size antenna is increasing day by day. The above demands can be fulfilled by the use of Fractal geometry Antennas. In this survey, we have made the comparison of different fractal geometry antennas and techniques used for UWB applications and also observed about obtaining ultra-wideband and multiband characteristic using DGS (Defected Ground Surface), Slots, Different feeding technique and its position incorporated with fractal geometry. The above antennas are used in many wireless applications like GSM 900, GSM 1800, Bluetooth (2.4 GHz), LTE (2.3 GHz), 3G (1.92-1.98), Wi-Max (3.3, 5.3 GHz), WLAN (5.15-5.825), Satellite communication in X-band and military communication in C-band.