Title :
Solution of EM fields by asymptotic waveform techniques
Author :
Li, Ming ; Zhang, Qi-Jun ; Nakhla, Michel
Author_Institution :
Dept. of Electron., Carleton Univ., Ottawa, Ont., Canada
Abstract :
A new numerical solution technique to electromagnetic (EM) field problems is presented. It is based on complex-frequency hopping (CFH), which is an expanded asymptotic waveform evaluation approach proposed for circuit simulation with great success in solving large linear lumped and distributed circuits. The Helmholtz equations are formulated into a set of linear ordinary differential equations which are solved by an asymptotic waveform evaluation. The technique offers a speed or stability advantage over, e.g., the finite difference frequency domain (FDFD) and the finite difference time domain (FDTD) approaches for comparable accuracy. An example of waveguide frequency-domain analysis is provided
Keywords :
Helmholtz equations; circuit analysis computing; differential equations; electromagnetic fields; frequency-domain analysis; linear network analysis; lumped parameter networks; numerical stability; waveguide theory; EM field problems; EM fields solution; FDTD; Helmholtz equations; accuracy; asymptotic waveform evaluation; asymptotic waveform techniques; circuit simulation; complex-frequency hopping; finite difference frequency domain; finite difference time domain; frequency-domain analysis; large distributed circuits; large linear lumped circuits; linear ordinary differential equations; numerical solution technique; speed; stability; waveguide; Circuit simulation; Circuit stability; Computational modeling; Differential equations; Finite difference methods; Frequency; Hydrogen; Maxwell equations; Partial differential equations; Time domain analysis;
Conference_Titel :
Signals, Systems, and Electronics, 1995. ISSSE '95, Proceedings., 1995 URSI International Symposium on
Conference_Location :
San Francisco
Print_ISBN :
0-7803-2516-8
DOI :
10.1109/ISSSE.1995.498017
