bandgap structure meaning in English

带隙构造

Microstrip electromagnetic bandgap structure with the multiple band gaps
具有多频带特性的微带电磁带隙结构
The radiation pattern of the antenna is more rotationally symmetric , and a more reduction on the sidelobe levels of the antenna is achieved as compared to the antenna with the corrugated soft surface . in conclusion , in the present thesis both theoretical and experimental research works have been carried out intensively on patch antennas based on photonic - bandgap structures . it is shown that our photonic bandgap structures can greatly improve the performance of the patch antennas
该平面圆环结构软表面天线是在空气介质的皱褶圆环结构软表面天线的基础上改进得到，为了便于比较，我们首先研究了空气介质的皱褶圆环结构软表面天线，用fdtd方法并结合pml吸收边界条件对该天线的性能进行了研究，结果表明天线的带宽增加，天线的轴对称性得到了很大改善， e面和h面方向图的波束几乎重合，天线的旁瓣和背瓣受到很大的抑制。