Document Type
Article
Publication Date
2020
Abstract
Tunable negative electromagnetic properties: permittivity, permeability, and refractive index, in mimic Chlorophyll metamaterial structures in the X- and Ku-band regimes are theoretically and numerically demonstrated. A very broad negative permeability covering the majority of the X- and Ku bands, from 8GHz to 16GHz, is observed, while five negative permittivity bands are found within the same range. The two aforementioned properties result in a broad, greater than 25% bandwidth, low-loss negative-refractive index transmission band. These negative electromagnetic properties can be effectively tailored within the low-loss multi-transmission and the high-loss multi-absorption bands in the operating frequency range by modifying the structure’s tiller part or the artificial hydrophobic or Phytol tail. By focusing either on the transmission or the absorption bands, these passive always-on bio-inspired metamaterials could be utilized in microelectronic, communication and photonic, and optic devices.
Recommended Citation
N. Wongkasem, "Chlorophyll-Inspired Tunable Metamaterials with Multi-Negative Refractive Index Bands: the Porphyrin Ring and Hydrophobic Tail Effect," Progress In Electromagnetics Research C, Vol. 100, 219-232, 2020. doi:10.2528/PIERC20011102
First Page
219
Last Page
232
Publication Title
Progress In Electromagnetics Research C
DOI
10.2528/PIERC20011102
Comments
© 2010 EMW Publishing. Original published version available at http://www.jpier.org/PIERC/pierc100/17.20011102.pdf