Title :
Design of tunable left-handed material composed of ferrite-dielectric and metallic mesh
Author :
He, Guanghua ; Wu, Rui-xin ; Poo, Yin ; Chen, Ping
Author_Institution :
Dept. of Electron. Sci. & Eng., Nanjing Univ., Nanjing, China
Abstract :
Magnetic tunable left-handed material composed of ferrite-dielectric and metallic mesh is proposed and verified. We discuss the variation of electromagnetic parameters due to the change of three flexible geometry parameters: the lattice constant, the line width of the mesh, and the thickness of dielectric. The mesh affects the permittivity but does not affect the frequency range of negative permeability, while the thickness of dielectric will affect both permittivity and permeability. The topology and the external magnetic field both affect the central frequency and bandwidth of the left-handed region.
Keywords :
dielectric materials; ferrites; lattice constants; metamaterials; permeability; permittivity; central frequency; dielectric thickness; electromagnetic parameters; external magnetic field; ferrite-dielectric mesh; flexible geometry parameters; lattice constant; left-handed region bandwidth; magnetic tunable left-handed material; mesh line width; metallic mesh; permeability; permittivity; topology; Bandwidth; Dielectrics; Frequency; Geometry; Lattices; Magnetic fields; Metamaterials; Permeability; Permittivity; Topology; Ferrites; Periodic structures; Tunable circuits and devices;
Conference_Titel :
Microwave Conference, 2009. APMC 2009. Asia Pacific
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-2801-4
Electronic_ISBN :
978-1-4244-2802-1
DOI :
10.1109/APMC.2009.5384430
