Title :
A mixed asymptotic and FD method for the EM field modelling in quasi-optical devices
Author :
Zvyagintsev, A.A. ; Ivanov, A.I.
Author_Institution :
Microwave Phys. Dept., V.N. Karazin Kharkiv Nat. Univ., Ukraine
Abstract :
A method for modeling the electromagnetic (EM) fields in quasi-optical devices is presented. It is based on the ray tracing technique with field refinement by the geometrical theory of diffraction and FD method. The last is applied in regions where it is hard to obtain asymptotic solutions. A comparison with the adaptive mesh FEM is presented and the ways in which performance is improved are outlined.
Keywords :
electromagnetic field theory; finite difference methods; finite element analysis; geometrical theory of diffraction; ray tracing; EM field modelling; FD method; adaptive mesh FEM; asymptotic method; electromagnetic field modelling; geometrical theory of diffraction; quasi-optical devices; ray tracing; Difference equations; Electromagnetic fields; Electromagnetic modeling; Finite difference methods; Finite element methods; Large-scale systems; Microwave devices; Physical theory of diffraction; Physics; Ray tracing;
Conference_Titel :
Antenna Theory and Techniques, 2003. 4th International Conference on
Print_ISBN :
0-7803-7881-4
DOI :
10.1109/ICATT.2003.1238846
