Left Handed Metamaterial with 0 = - 0 0 and = - 0 and Some Applications

A left handed metamaterial (LHM) with �0 = - �0 0 and �� = - �� 0 is proposed and its properties are theoretically and numerically analyzed. The LHM is composed of ferrites to provide a negative permeability and a wire array to provide a negative permittivity. The parameter conditions of satisfying aforementioned properties are investigated. The analyzed results show that the LHM has a nearly perfect negative pass band with very small reflections and losses in the microwave frequencies and the negative pass band can be tuned by changing the applied magnetic field. This LHM can be applied to various areas such as microwave engineering areas. In this paper, the applications of the LHM including the microwave filter and phase shifter are discussed respectively. Keywords-left handed metamaterial; ferrites; applications; filter; phase shifter

[1]  David R. Smith,et al.  Spatial mapping of the internal and external electromagnetic fields of negative index metamaterials. , 2006, Optics express.

[2]  A novel approach to design microwave medium of negative refractive index and simulation verification , 2007 .

[3]  Ji Zhou,et al.  Magnetotunable left-handed material consisting of yttrium iron garnet slab and metallic wires , 2007 .

[4]  G. Dewar A thin wire array and magnetic host structure with n<0 , 2005 .

[5]  V. Veselago The Electrodynamics of Substances with Simultaneously Negative Values of ∊ and μ , 1968 .

[6]  R. Ziolkowski Design, fabrication, and testing of double negative metamaterials , 2003 .

[7]  G.V. Eleftheriades,et al.  A broadband series power divider using zero-degree metamaterial phase-shifting lines , 2005, IEEE Microwave and Wireless Components Letters.

[8]  W. T. Lu,et al.  Negative refraction and left-handed electromagnetism in microwave photonic crystals. , 2003, Physical review letters.

[9]  Alexander G. Ramm,et al.  Does negative refraction make a perfect lens , 2008 .

[10]  R. Shelby,et al.  Experimental Verification of a Negative Index of Refraction , 2001, Science.

[11]  Willie J Padilla,et al.  Composite medium with simultaneously negative permeability and permittivity , 2000, Physical review letters.

[12]  G. Eleftheriades,et al.  Planar negative refractive index media using periodically L-C loaded transmission lines , 2002 .

[13]  T. Itoh,et al.  Electronically scanned composite right/left handed microstrip leaky-wave antenna , 2004, IEEE Microwave and Wireless Components Letters.

[14]  T. Itoh,et al.  A broadband left-handed (LH) coupled-line backward coupler with arbitrary coupling level , 2003, IEEE MTT-S International Microwave Symposium Digest, 2003.

[15]  Tatsuo Itoh,et al.  Dominant mode leaky-wave antenna with backfire-to-endfire scanning capability , 2002 .

[16]  David R. Smith,et al.  Metamaterial Electromagnetic Cloak at Microwave Frequencies , 2006, Science.