A Planar Metamaterial With Dual-Band Double-Negative Response at EHF

作者：Gundogdu T Funda^*; Guven Kaan; Gokkavas Mutlu; Soukoulis Costas M; Ozbay Ekmel

来源：IEEE Journal of Selected Topics in Quantum Electronics, 2010, 16(2): 376-379.

DOI：10.1109/JSTQE.2009.2031618

• Electromagnetic propagation
• metamaterial
• negative refractive index

We report the fabrication and electromagnetic characterization of a planar composite metamaterial (CMM) that is designed to achieve dual-frequency double-negative response at the lower end of the extremely high-frequency (EHF) band. The CMM is based on cut wire pairs and continuous wire elements. Dual-frequency operation is obtained by employing cut wire pairs of two different lengths within the unit cell of the CMM. The magnetic response of the cut wire pairs and the left-handed transmission band of the CMM are demonstrated by experiment and numerical simulations. It is found that the combined electric response of the dual-band CMM is complicated and imposes certain restrictions to the structure design in achieving true left-handed response at both designated frequencies.

• 出版日期2010-4