Design and Modelling of Double Negative Metamaterial for Microwave Sensing Application
Authors/Creators
- 1. Electronics Engineering Department, S. V. National Institute of Technology, Surat, India
Description
A new design and analysis of double negative metamaterial unit cell geometry, considering frequency range of 1GHz to 4GHz with the S-band sensor application is presented in this paper. The DNG unit cell with two closed C shaped split ring resonators connected with conductive strip are placed on the radiating patch and thin metal strip at the ground plane were introduced. The integral equation method (IEM) based CST simulation software is used to obtained scattering parameters transmission coefficient () and reflection coefficient () in dB. The proposed unit cell exhibits negative permittivity (ε) and permeability (µ) simultaneously at S-band (3.5 GHz to 3.7 GHz) microwave frequencies. It is shown that geometry exhibit double negative (DNG) metamaterial behaviour in the frequency range of interest. This is an auspicious and novel geometry in the RF/microwave field for its simplicity, double-negative properties and small size (10mm×10mm). Therefore, such metamaterial unit cell structure will be used for designing a compact planar DNG inspired microwave sensor to achieve superior performance.
A new design and analysis of double negative metamaterial unit cell geometry, considering frequency range of 1GHz to 4GHz with the S-band sensor application is presented in this paper. The DNG unit cell with two closed C shaped split ring resonators connected with conductive strip are placed on the radiating patch and thin metal strip at the ground plane were introduced. The integral equation method (IEM) based CST simulation software is used to obtained scattering parameters transmission coefficient () and reflection coefficient () in dB. The proposed unit cell exhibits negative permittivity (ε) and permeability (µ) simultaneously at S-band (3.5 GHz to 3.7 GHz) microwave frequencies. It is shown that geometry exhibit double negative (DNG) metamaterial behaviour in the frequency range of interest. This is an auspicious and novel geometry in the RF/microwave field for its simplicity, double-negative properties and small size (10mm×10mm). Therefore, such metamaterial unit cell structure will be used for designing a compact planar DNG inspired microwave sensor to achieve superior performance.