Design and Analysis of a Novel UHF RFID Soil Moisture Sensor for Smart Farming

IF 2.3 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE journal of radio frequency identification Pub Date : 2025-06-16 DOI:10.1109/JRFID.2025.3580012

Srabana Maiti;Shuvashis Dey

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引用次数: 0

Abstract

This work presents the design, analysis and experimental validation of a novel chip-based Ultra High Frequency Radio Frequency Identification (UHF RFID) sensing system designed for soil moisture measurement. The presented sensing resonator is integrated with Alien Higgs-3 IC having an impedance of 27.40-j

$200.9\Omega $

and operates at 915 MHz. The resonator is superimposed with a Kapton Polyimide sheet that acts as the smart sensing material for moisture detection. The proposed design is fabricated and tested in sandy soil with varying moisture levels. Variation of moisture content leads to changes in dielectric properties of the soil which is indicated by a consistent reduction in Received Signal Strength Indicator (RSSI) values. The change in RSSI further correlates to a consistent change in the impedance value of the sensor. Calibration curves establishing a relationship between RSSI levels and impedance are plotted against the known volumetric soil moisture content. This curve will be utilized to determine unknown soil moisture content in practical scenarios.

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一种新型超高频RFID智能农业土壤湿度传感器的设计与分析

本文介绍了一种新型的基于芯片的超高频射频识别（UHF RFID）传感系统的设计、分析和实验验证，该系统设计用于土壤湿度测量。该传感谐振器集成了Alien Higgs-3 IC，阻抗为27.40-j $200.9\Omega $，工作频率为915 MHz。谐振器与卡普顿聚酰亚胺片重叠，作为智能传感材料进行水分检测。所提出的设计是在不同湿度的沙土中制作和测试的。含水率的变化导致土壤介电特性的变化，这表现为接收信号强度指标（RSSI）值的持续降低。RSSI的变化进一步与传感器阻抗值的一致变化相关。建立RSSI水平和阻抗之间关系的校准曲线是根据已知的体积土壤含水量绘制的。这条曲线将在实际场景中用于确定未知的土壤含水量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE journal of radio frequency identification

CiteScore

5.70

自引率

0.00%

发文量