Title :
Band structure analysis of crystals with discontinuous metallic wires
Author :
Boutayeb, Halim ; Denidni, Tayeb A. ; Sebak, Abdel Razik ; Talbi, Larbi
Author_Institution :
Inst. Nat. de la Recherche Scientifique, Univ. of Quebec, Montreal, Que., Canada
fDate :
7/1/2005 12:00:00 AM
Abstract :
The band structure for normal propagation of crystals with finite straight metallic wires is studied for different wire diameters and lengths. The crystal is considered as a set of parallel grids. Dispersion characteristics are obtained by using a transmission line model where the parameters are calculated from the reflection and transmission coefficients of the grids. These coefficients are computed rigorously with a finite difference time domain (FDTD) code. Simulated and experimental results for two structures with the dual behavior, pass-band and stop-band, are presented. This study have potential applications in electrically controlled microwave components.
Keywords :
crystal structure; electromagnetic wave propagation; finite difference time-domain analysis; periodic structures; transmission line theory; wires (electric); band structure analysis; discontinuous metallic wires; dispersion characteristics; electrically controlled microwave components; finite difference time domain code; finite straight metallic wires; metallic crystals; normal crystal propagation; parallel grids; periodic structures; reflection coefficients; transmission coefficients; transmission line model; wire diameters; wire lengths; Crystals; Diodes; Electromagnetic propagation; Finite difference methods; Periodic structures; Propagation constant; Reflection; Transmission line discontinuities; Transmission lines; Wires; Band structure; metallic crystals; periodic structures;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2005.851579
