Title :
Analysis of Planar Distributed Two-dimensional(2-D) Left-handed (LH) Structures
Author :
Li, Chao ; Liu, Kaiyu ; Li, Fang
Author_Institution :
Chinese Acad. of Sci., Beijing
Abstract :
In this paper, a new approach is proposed to analyze planar distributed 2-D LH structures. The 4-port S parameters of the unit cell combined with the Bloch-Floquet theory are used to determine the dispersion relations and Bloch impedance. The LH and RH frequency bands are identified by the signs of the real parts of the wave number and the Bloch impedance. As an example, a capacitance-enhanced LH structure is designed and analyzed with the new approach. To demonstrate its effectiveness, FDTD simulation is also performed to illustrate the backward wave propagation in the periodic structure with infinite arrays in LH frequency band.
Keywords :
finite difference time-domain analysis; metamaterials; wave propagation; 4-port S parameter; Bloch impedance; Bloch-Floquet theory; FDTD simulation; backward wave propagation; capacitance-enhanced left-handed structure; dispersion relation; finite difference time-domain analysis; left-handed frequency band; periodic structure; planar distributed 2D left-handed structure; unit cell; wave number; Capacitance; Chaos; Dispersion; Finite difference methods; Frequency; Impedance; Periodic structures; Scattering parameters; Two dimensional displays; Voltage;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2007. ICMMT '07. International Conference on
Conference_Location :
Builin
Print_ISBN :
1-4244-1049-5
Electronic_ISBN :
1-4244-1049-5
DOI :
10.1109/ICMMT.2007.381370
