Waveguide bandpass filter analysis and design using multimode parallel FDTD diakoptics

This paper presents an analysis and design method based on finite-differenc e time-domain diakoptics, A complex structure is di,divided into several sm aller subsections. The characteristics of the subsections are analyzed enti rely in the time domain using mode-type discrete time-domain Green's functi ons, A multimode parallel algorithm is proposed to connect the subsections, Several filter analysis and design examples are presented. The effectivene ss and accuracy of this method is demonstrated by comparison with other com putational methods and measurements.