Monitoring freshness of Tommy Mango Fruit with an RFID Tag

Over the past 30 years, the consumption of fresh fruits and vegetables in industrialized countries has increased, along with the circulation of goods on a world-wide scale. This implies the risk of outbreaks of food poisoning and food infections related to consumption of fresh fruits, as well as a huge increase in the risk of wasting impressive amounts of products. To reduce this waste, Radio Frequency Identification (RFID) systems can be beneficial, enabling early detection via low-cost tagging of contaminated vegetables and fruit, which can help reduce these losses and stop the spread of disease. An inexpensive sensor antenna has been designed using a sensitive substrate in this paper. In order to estimate the freshness of mangoes, this design optimizes the matching of input impedance based on the surface permittivity changes of the substrate The analysis of the dielectric characteristics of Tommy Atkins Mango data is used so to investigate the maturation, ripping and freshness of mangos. Using the proposed approach, it was demonstrated that a smaller sum of dielectric constants, leads to greater contribution of the substrate and the performance of the antenna is as follows: resonant frequency and S-parameter amplitude tend towards 1 GHz and −33.37 dB, respectively.