Electromagnetic characteristics of Hilbert curve-based metamaterials

• DOI: 10.1007/s00339-014-8679-6
• Publication Date: 2014-08-22T04:53:25Z
• Authors: Ruirui Chen; Sucheng Li; Chendong Gu; Shahzad Anwar; Bo Hou; Yun Lai
• Keywords: Split-ring resonator; Metamaterial cloaking; Hilbert curve

As the typical building blocks of metamaterials, the cut wire and the split ring resonator have been extensively studied in recent years. Besides them, the space-filling curve-based metamaterials are receiving great attentions because of their intrinsic subwavelength and multi-bands characteristics. In this work, we have investigated experimentally and numerically the electromagnetic characteristics of such Hilbert curve metamaterial in the microwave frequency regime and found a deeply subwavelength magnetic resonance supported by the fractal pattern and featuring the wavelength-to-size ratio more than 20. The subwavelength electromagnetic properties of the Hilbert curve will be beneficial to realize high-performance metamaterials.