Design of Penta Band T-Shaped Fractal Patch Antenna for Wireless Applications

since the evolution of the patch antennas, there is rapid growth observed in the applications of the patch antenna. There are number of benefits such as small size, ease of fabrication and installment, and a firm performance, so there are huge number of designs has been developed and presented by the researchers time to time. Taking an example of the mobile phone antennas, the antenna must have a small size and must be capable to resonate at multiple frequency bands. Reviewing about the diverse requirements of the antenna design for the wireless applications designed a novel multiple band fractal patch antenna. T-shaped patch antenna has been designed and discussed in following paper. In order to obtain self-similar constituting applied fractal geometry on it, and DGS (defective ground structure) applied at ground to improve parameters. The dimension of Square Patch has been taken as 36 x 36 mm. Dimension of ground has been taken 50 x 50 mm. The substrate element used for antenna design is FR-4 with reflection coefficient 4.4. Antenna works at five bands 3.51 GHz, 4.5 GHz, 6.11 GHz, 8.1 GHz, and 9.41 GHz. This antenna having return loss of -17.11 dB, -15 dB, -22 dB, -16 dB, -57.80 dB with useful frequencies range of 400 Megahertz, 388 Megahertz, 345 Megahertz, 430 Megahertz, and 648 Megahertz at useful frequencies. Further antenna has excellent gain of 4.06 dBi, 7.7 dBi and 3.05 dBi, 3.03 dBi, 3.34 dBi at corresponding frequencies. This antenna shall be applicable for Wi-Max, 4G network, wireless local area network, and Satellite & RADAR communication.