Title :
Double Negative Medium Composed from Split-Ring Resonators Only
Author :
Semouchkina, Elena ; Mudunuri, S. ; Semouchkin, George ; Mittra, Raj
Author_Institution :
Mater. Res. Inst., Pennsylvania State Univ., University Park, PA
Abstract :
Electromagnetic response of split-ring resonators (SRRs) placed inside a waveguide at two different orientations chosen to provide interaction of the SRR with either magnetic or electric component of incident field, was investigated by using FDTD simulations. The same half wavelength resonance was observed in the SRRs in both cases, however, the EM response corresponded to either negative permeability or negative permittivity of the medium. A unit cell of a double negative medium composed from two SRRs of different orientations was found to demonstrate enhanced transmission at frequencies, at which either SRR element provided for enhanced reflection
Keywords :
cavity resonators; finite difference time-domain analysis; metamaterials; waveguide components; FDTD simulations; double negative medium; electric component; electromagnetic response; half wavelength resonance; magnetic component; negative permeability; negative permittivity; split ring resonators; Electromagnetic fields; Electromagnetic scattering; Electromagnetic waveguides; Finite difference methods; Frequency; Magnetic resonance; Permeability; Permittivity; Time domain analysis; Waveguide components; Waveguides; double negative metamaterials; effective parameters; resonance standing waves;
Conference_Titel :
Microwave Symposium Digest, 2006. IEEE MTT-S International
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-9541-7
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2006.249584
