摘要
针对EBG结构带隙带宽较窄这一问题,提出一种新的实现方法——单元尺寸线性渐变方法,在不增大结构尺寸的条件下实现了更宽的带隙。文中以微带EBG和Mushroom-like EBG两种结构为例进行分析计算,仿真结果表明单元尺寸渐变可以使这两种EBG结构的带隙带宽增加30%～40%,为拓展EBG结构的带隙带宽提供了一种新的途径。
A method for broadening frequency band-gap width is proposed with the unit size tapering in EBG structures.Two examples of the EBG structures,microstrip EBG and Mushroom-like EBG,are analyzed and calculated with Ansoft HFSS code.Simulation results show that the bandwidth can be enlarged 30%～40% by the unit size tapering compared with that of the uniform EBG structure.This approach gives a new solution to broaden the frequency band-gap width of EBG structures.
出处
《微波学报》
CSCD
北大核心
2010年第S1期75-78,共4页
Journal of Microwaves
关键词
光子晶体
电磁带隙结构
单元尺寸线性渐变
带隙带宽
photonic crystal
EBG periodic structure
unit size tapering
frequency band-gap width
