Multifunctional of dual-band permittivity sensors with antenna using multicascode T-shaped resonators for simultaneous measurement of solid materials and data transfer capabilities

Abstract

This paper proposes multifunctional of a dual-band independent permittivity sensor with anantenna for data transfer capabilities. The proposed sensor consists of multicascode T-shaped resonators withsingle port operating at frequencies of fr1 = 2.45 GHz, fr2 = 2.00 GHz and fr3 = 1.50 GHz, respectively. The 1st resonant frequency was used as anantenna while the 2nd and 3rd resonant frequencies were used as sensors to determine the permittivity of solid materials simultaneously. Based on the measurement results obtained an average accuracy of 96.81% and 97.54%, while the normalized sensitivityof the proposed sensor was 0.66% and 1.77% with a permittivity range of 1 – 6.15, respectively. Furthermore, the higher resonant frequencyis used as anantenna to transmit and receive data via wireless network. This research is beneficial to be applied in food, biomedical, and pharmaceutical industries to support the industry 4.0 in which the integration between sensors and the internet is required.