ADI-MRTD算法在新型非对称共面波导滤波器中的应用

摘要

The authors presented alternating direction implicit multiresolution time-domain ( ADI-MRTD ) formulation, and implemented perfect matched layer ( PML ) as absorbing boundary conditions of ADI-MRTD method. The application of the ADI-MRTD method to the calculations of asymmetrical coplanar waveguide ( ACPW ) and ultra-wideband ACPW filter. The numerical and measured results show the advantages of ADI-MRTD over conventional FDTD method with respect to memory and mesh requirements and execution time, and the numerical result of ADI-MRTD is in agreement with FDTD and measured result.%通过给出交替隐式时域多分辨分析算法(ADI-MRTD)公式,用完全匹配层(PML)作为ADI-MRTD算法的吸收边界条件,将其应用到非对称共面波导(ACPW)及超宽带ACPW滤波器.计算及实验结果表明,ADI-MRTD算法与传统FDTD算法相比,所需计算的网格数量减少,节省了计算内存,计算效率更高,与FDTD计算结果及测量结果相符.