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15 Oct 2007

Volume 91, Issue 16, Articles (16xxxx)

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Appl. Phys. Lett. 91, 162101 (2007); http://dx.doi.org/10.1063/1.2794995 (3 pages)

D. J. Reilly, C. M. Marcus, M. P. Hanson, and A. C. Gossard
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Active left-handed material collaborated with microwave varactors

Dongxing Wang, Lixin Ran, Hongsheng Chen, Mingkai Mu, Jin Au Kong, and Bae-Ian Wu

Appl. Phys. Lett. 91, 164101 (2007); http://dx.doi.org/10.1063/1.2799255 (3 pages) | Cited 19 times

Online Publication Date: 15 October 2007

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In the present letter, a design for active left-handed material collaborated with microwave varactors is proposed and experimentally realized. Both the results of simulation and experiment verify the tunable left-handed properties of the structure in microwave band. A controllable beam steering is then observed experimentally by a prism fabricated by such metamaterial. The simplicity of the active design and its tunable negative refraction indices make it useful for various applications.
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84.40.-x Radiowave and microwave (including millimeter wave) technology
84.32.Tt Capacitors
85.60.-q Optoelectronic devices
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