A meta-material structure which is optimized by combining genetic algorithm in Matlab and simulation in HFSS is introduced. A structure which has surface wave band gap is designed to suppress surface wave

as well as enhance gain performance. The optimization process of the algorithm is effectively accelerated by saving and querying the optimized records. Through simulation results

it is found that the microstrip antenna with the structure of new electromagnetic material

work on 5. 8 GHz

gain is increased by 1. 8 d B

and back radiation is reduced by3. 8 d B

and electromagnetic signal acquisition ability of antenna is improved.