The dual band antennas are being given much focus for their versatility, compact size, low cost and high performance. Dual band antenna radiates more than one pattern at different frequencies and various polarizations providing more flexibility to antenna designer. Due to additional degree of freedom, there is a large potential for increased system performance. A dual band e-shape microstrip antenna has simulated and analyzed at frequencies 1.625GHz and 1.725GHz. The antenna was analyzed to operate at 1.625GHz and with reconfigurability of frequency it will operate at 1.725GHz.