Title :
Automatic generation of subdomain models in 2D FDTD using reduced order modeling
Author :
Denecker, Bart ; Olyslager, Frank ; Knockaert, Luc ; De Zutter, Daniël
Author_Institution :
Dept. of Inf. Technol., Ghent Univ., Belgium
fDate :
8/1/2000 12:00:00 AM
Abstract :
A new method combining a finite difference method and a reduced order model (ROM) algorithm is presented for two-dimensional (2-D) electromagnetic problems. The problem space is subdivided into subdomains of a generic type. By discretizing the spatial derivatives in a way similar to the finite-difference in time-domain technique (FDTD), the state equations are written down in each subdomain. From that, an FDTD-subdomain model is derived. Finally, the different subdomains are reconnected and the original problem is solved by a leapfrog time-stepping algorithm. Some numerical results are presented to illustrate the new approach
Keywords :
electromagnetic wave propagation; finite difference time-domain analysis; reduced order systems; 2D FDTD; electromagnetic problems; leapfrog time-stepping algorithm; problem space; reduced order modeling; spatial derivatives; state equations; subdomain models; Electromagnetic modeling; Equations; Finite difference methods; Frequency; Helium; Read only memory; Reduced order systems; Sparse matrices; Time domain analysis; Two dimensional displays;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
