In mobile communication, dual band meander slot antenna is a vital use these days. This paper presents the simulation analysis of slot antennas using different frequency for bandwidths enhancement. Various govt. and private sector organizations made use of dual band techniques to solve the problem of antenna bandwidth in mobiles, wireless and broadband etc. These techniques are used to reduce the physical size but to increase the bandwidth and efficiency of antenna. Some approaches for dual band are introduction of slots, meander slot and micro strip patch antenna with high dielectrics constant. The effect of dual band in various antenna parameters like, radiation efficiency, gain and bandwidth are discussed. Finally the paper reports a brief description bandwidth enhancement of antenna by using two different frequencies and micro strip feed line at the opposite side of substrate with a finite size of ground plane .this slot antenna supports 2400MHz to 3600MHz frequencies [1] .simulation operations demonstrate that optimum results of antenna and radiation characteristics have been successfully done for meander slot antenna.