Discussions and preliminary experiments are given for some potential applications of left - handed materials . experimental results which are in accordance with expects for the focusing of plane wave using symmetric rings and the focusing of radiate source using rings are obtained . simulation results are also obtained concerning the - like structure based backward radiate antenna and transmission line based left - handed structures 对称环结构异向介质凹透镜的平面波聚焦、结构异向介质的点源会聚等实验都得到了和预期接近的初步结果;对基于结构全固态异向介质后向波介质天线微波异向介质的实验研究和基于微带电路结构单元的异向介质进行了计算机仿真研究,也取得了较好的结果。