Hilbert Curve Antenna for Biological Samples Characterization

In this paper, we present a sensor for meat samples sensing based on the modified second order Hilbert curve antenna. The designed antenna was numerically simulated to observe its resonance frequency. Then, we went through the fabrication process in order to validate the simulation results and we got a good agreement between the obtained responses. Finally, the fabricated sensor is tested with different chicken and beef meat samples having different thicknesses in order to prove its sensitivity. The device ability to detect different meat samples was translated by the shift in the resonance frequency values when the samples under test are present on the top of it. This also caused a variation of the Quality factor (Q-factor) values that varied from 2 in the reference case which is the unloaded case to 2.223 when the thickness of the chicken meat varied from 1cm to 3cm and to 3.2 when the beef meat sample thickness varied from 1 cm to 3 cm.