Title :
Positive/negative refractive index anisotropic 2-D metamaterials
Author :
Caloz, Christophe ; Itoh, Tatsuo
Author_Institution :
Dept. of Electr. Eng., Univ. of California, Los Angeles, CA, USA
Abstract :
An anisotropic metamaterial, based on a transmission line (TL) approach, that exhibits positive refractive index (PRI) in one direction and negative refractive index (NRI) in another (orthogonal) direction is presented, characterized and demonstrated in terms of analytic dispersion diagrams, equivalent refractive indexes, and circuit-simulated voltage/current/power distributions. This anisotropic structure may also be implemented in distributed architectures and lead to novel antenna and reflector applications.
Keywords :
arrays; microwave materials; periodic structures; refractive index; transmission line matrix methods; 2-D array; 2-D metamaterial; analytic dispersion diagrams; anisotropic metamaterial; antenna applications; circuit-simulated voltage-current-power distributions; constitutive parameters; distributed architectures; equivalent refractive indexes; negative refractive index; periodic repetition; positive refractive index; reflector applications; transmission line approach; transmission matrix; Anisotropic magnetoresistance; Capacitors; Circuits; Frequency; Inductors; Metamaterials; Permeability; Permittivity; Refractive index; Transmission line theory;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2003.820641
