利用电磁理论和传输矩阵法仿真得到了在0.3~6.935GHz微波波段具有负折射率的左手材料，并分别对右手材料和左手材料构成的光子晶体带隙特点进行了分析.结果表明：右手材料光子晶体结构的带隙对周期数变化不敏感，而对层厚度比、入射角度变化敏感；左手材料光子晶体带隙随层厚度比的增大，带隙位置出现蓝移，随着入射角度的增大，TM波主带隙的上带边会出现红移，而TE波带隙特性对入射角度变化不敏感.研究结果对微波技术中全方位反射器等器件的设计有一定的参考意义.

Using the electromagnetic theory and the method of transfer matrix, a kind of lefthanded material with negative refractive index in 0.3~6.935 GHz microwave band was obtained. The band gap characteristics of photonic crystal consisted of righthanded material and lefthanded materialis were analyzed, respectively. The results show that the band gap of photonic crystal consisted of righthanded material is sensitive to the thickness ratio and the incidence angle, while is not sensitive to the change of period number. To the lefthanded material photonic crystal, the band gap position appears blue shift as the thickness ratio increasing, and the upper band edge of main band gap appears red shift phenomenon as the incidence angle increasing, but the band gap of TE wave is not sensitive to the change of incidence angle. These properties are significance to design omnidirectional reflectorin microwave technologes.