Title :
Optimal design method for microwave device using time domain method and design sensitivity analysis. I. FETD case
Author :
Chung, Young-Seek ; Ryu, Jechung ; Cheon, Changyul ; Park, Il-Han ; Hahn, Song-Yop
Author_Institution :
Dept. of Electron., Seoul Univ., South Korea
fDate :
9/1/2001 12:00:00 AM
Abstract :
In this paper, a new optimal shape design method for microwave passive devices for better performances in a broadband is proposed, which is based on vector finite element time domain (FETD) method and design sensitivity analysis (DSA). The design sensitivity is evaluated using an adjoint variable method. While the original field equation is an initial-value problem, the adjoint equation is an terminal-value problem. To transform the terminal-value problem into a initial-value problem, a backward time scheme is used. To verity its usefulness, a two-dimensional E-plane waveguide T-junction is analyzed
Keywords :
finite element analysis; initial value problems; microwave devices; optimisation; sensitivity analysis; time-domain analysis; waveguide components; 2D E-plane waveguide T-junction; IVP; adjoint variable method; backward time scheme; broadband applications; design sensitivity analysis; finite element time domain method; initial-value problem; microwave passive devices; optimal shape design method; terminal-value problem; vector FETD case; Design methodology; Equations; Finite element methods; Microwave devices; Microwave theory and techniques; Optimization methods; Sensitivity analysis; Shape; Time domain analysis; Wideband;
Journal_Title :
Magnetics, IEEE Transactions on
