The tremendous increase in wireless communication in the last few decades has led to the need of larger bandwidth and low profile antennas for both commercial and military applications. One technique to construct a multiband antenna is by applying fractal shape into antenna geometry. Fractal antennas due to their self similar design take less area and are thus low profile. This paper presents the design and implementation of Sierpinski carpet fractal antenna up to third iteration. The proposed antenna is designed and fabricated on FR4 substrate with dielectric constant of 4.4 and fed with 50 ohms microstrip line. However the gain of the 3rd iteration Sierpinski carpet fractal antenna is small, to increase the gain of the antenna modifications in the fractal geometry have been proposed.