Title :
ASM–FDTD: A Technique for Calculating the Field of a Finite Source in the Presence of an Infinite Periodic Artificial Material
Author :
Qiang, Rui ; Chen, Ji ; Capolino, Filippo ; Jackson, David R. ; Wilton, Donald R.
Author_Institution :
Dept. of Electr. & Comput. Eng., Houston Univ., TX
fDate :
4/1/2007 12:00:00 AM
Abstract :
A novel technique is proposed to calculate the field due to an arbitrary impressed source of finite extent in proximity with an infinite periodic structure such as an artificial material. The algorithm is based on a spectral domain finite-difference time-domain (FDTD) method combined with the array scanning method (ASM). Using this approach, only a single periodic cell of the periodic structure needs to be numerically modeled. Examples are used to demonstrate the accuracy and efficiency of the proposed approach
Keywords :
finite difference time-domain analysis; metamaterials; periodic structures; spectral-domain analysis; ASM-FDTD; Green function; array scanning method; artificial materials; finite source field calculation; infinite periodic artificial material; metamaterials; periodic structures; spectral domain finite-difference time-domain method; Boundary conditions; Electromagnetic modeling; Finite difference methods; Frequency; Metamaterials; Numerical models; Optical materials; Periodic structures; Photonic band gap; Time domain analysis; Arrays; Green´s function; artificial materials; finite source; finite-difference time-domain (FDTD); metamaterials; periodic structures;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2007.892964
