Title :
A fast high-resolution 3-D finite-difference time-domain scheme with macromodels
Author :
Kulas, Lukasz ; Mrozowski, Michal
Author_Institution :
Dept. of Electron., Gdansk Univ. of Technol., Poland
Abstract :
A fast three-dimensional (3-D) finite-difference time-domain (FD-TD) scheme of high spatial resolution is presented. Increased resolution is obtained by combining the standard FD-TD algorithm with macromodels of highly refined volumes created by a model-order reduction technique. New updated equations for macromodels are derived and the numerical costs involved in using 3-D macromodels are estimated. Excellent performance has been observed during numerical tests for high-refinement factors.
Keywords :
finite difference time-domain analysis; reduced order systems; waveguide filters; waveguide theory; 3D finite-difference time-domain analysis; high refinement factors; high spatial resolution; macromodels; model-order reduction; numerical costs; standard FDTD algorithm; Costs; Equations; Finite difference methods; Frequency; Space technology; Spatial resolution; Testing; Time domain analysis; Transmission line matrix methods; Two dimensional displays; FD-TD; Finite-difference time-domain; MOR; macromodels; method; model-order reduction;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2004.834585
