Addressed is the calculation of millimeter wave attenuation on coplanar waveguide(CPW). A novel conformal wavelet finite-difference time-domain(CWFDTD) algorithm is proposed with emphasis on its application in calculation of millimeter wave attenuation on CPW, which is the combination of conformal algorithm dealing with the deformed cell with Wavelet-FDTD using multi-resolution analysis(MRA). Derived is the difference formulation for multi-resolution time domain(MRTD) based on Daubechies wavelets, and also given is the stability conditions for wavelet-FDTD algorithm. To validate its accuracy and efficiency, this novel method is applied to calculate the millimeter wave attenuation on lithium niobate CPW. Numerical results demonstrate that this new CWFDTD algorithm has the same accuracy with the conformal finite-difference time-domain(CFDTD) and conformal finite-difference time-domain based on alternating-direction implicit method(ADI-CFDTD), but saves computational time and computer memory.
设计了一种基于Matlab6.1语言的Er-Yb集成波导放大器CAD(Computer Aided Design,CAD)仿真系统,并对编程序代码的用途进行了说明。该系统可仿真Er-Yb共掺磷酸盐玻璃波导放大器的特性。所具有的图形用户界面(Graphical User Interface,GUI)使用户能够很快地改变参数,能立即看出新参数所产生的仿真结果。
