Title :
Efficient FDTD method for analysis of left-handed mushroom structure using system identification method
Author :
Wu, Wei-Yang ; Lai, Anthony ; Leong, Kevin M K ; Kuo, Chih-Wen ; Houshmand, Bijan ; Itoh, Tatsuo
Author_Institution :
National Sun Yat-sen Univ., Kaohsiung, Taiwan
Abstract :
An FDTD method, combined with system identification (SI), thin wire and thin slot algorithms for the analysis of periodic mushroom structure based metamaterials, is proposed. The SI method provides a significant reduction in computation time by determining the auto-regressive moving-average (ARMA) model using least-squares method. This proposed method is suitable for analyzing problems involving fine structural details and long computation time. An example of a mushroom structure is investigated to compare the results between simulation and measurement.
Keywords :
autoregressive moving average processes; finite difference time-domain analysis; least mean squares methods; metamaterials; ARMA model; FDTD method; auto-regressive moving-average model; least-squares method; left-handed mushroom structure; metamaterials; system identification method; thin slot algorithms; thin wire; Algorithm design and analysis; Computational modeling; Finite difference methods; Frequency; Metamaterials; Periodic structures; Predictive models; System identification; Time domain analysis; Wire;
Conference_Titel :
Microwave Conference, 2005 European
Print_ISBN :
2-9600551-2-8
DOI :
10.1109/EUMC.2005.1610114
