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Controllable left-handed metamaterial and its application to a steerable antenna

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5 Author(s)
Chen, Hongsheng ; The Electromagnetics Academy at Zhejiang University, Zhejiang University, Hangzhou 310058, China and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 ; Wu, Bae-Ian ; Ran, Lixin ; Grzegorczyk, Tomasz M.
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A controllable left-handed metamaterial based on a varactor-loaded S-shaped resonator structure is presented to realize an active radome. By controlling the phase properties of the radome, the antenna exhibits continuous scanning capability in a range of ±40°, which is confirmed by theoretical analysis.

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Applied Physics Letters  (Volume:89 ,  Issue: 5 )