摘要
为了研究含弯曲边界结构的微波光子晶体微带结构的电磁特性,应用了一种局部共形网格有限时域差分方法,通过修改磁场迭代方程,可有效提高计算精度.在此基础上计算了不同圆孔周期、圆孔半径的微带光子晶体结构的S参数.分析结果表明,圆孔周期决定禁带中心频率,而圆孔半径影响着禁带的宽度和深度.
We present the analysis of some Photonic Band Gap (PBG) structures in microstrip transmission lines by using the Modified Locally Conformal Finite Difference Time Domain (MLC-FDTD) Method. Numerical results show that better numerical accuracy can be achieved using this method. The analysis is made to study the influence of the period pattern and the radius of holes etched in the ground plane on the S parameters. Numerical results show that the period pattern determines the central frequency and that the radius of holes influences the width and the depth of the forbidden band.
出处
《西安电子科技大学学报》
EI
CAS
CSCD
北大核心
2004年第5期678-681,共4页
Journal of Xidian University
基金
国家部委973项目基金资助(00300113)
