Title :
Calculating the Dispersion Diagram using the Nonorthogonal FDTD Method
Author :
Song, Wanjuan ; Hao, Yuwen ; Parini, Clive G.
Author_Institution :
Queen Mary Coll., London
Abstract :
This paper presents a nonorthogonal finite-difference time-domain (NFDTD) modelling of photonic bandgap (PBG) structures. The NFDTD method discretises the curved structures in a conformal way. As a result, when the curved elements or oblique surfaces are involved in the EBG structure, the NFDTD scheme requires much fewer cells compared with the conventional Yee´s scheme. Consequently the requirement of the computer memory and the computation time can be reduced.
Keywords :
dispersion (wave); finite difference time-domain analysis; photonic band gap; PBG structures; curved elements; curved structures; dispersion diagram; nonorthogonal FDTD method; nonorthogonal finite-difference time-domain modelling; oblique surfaces; photonic bandgap; Electromagnetic bandgap structure (EBG); Finite-difference time domain (FDTD); Nonorthogonal FDTD (NFDTD) Method;
Conference_Titel :
Metamaterials for Microwave and (Sub) Millimetrewave Applications: Electromagnetic Bandgap and Double Negative Design, Structures, Devices and Experimental Validation, 2006. The Institution of Engineering and Technology Seminar on
Print_ISBN :
0-86341-679-9
