Summary
International Symposium on Antennas and Propagation
2014
Session Number:WE3A
Session:
Number:WE3A_03
Soil Moisture Dielectric Measurement Using Microwave Sensor System
Yi Lung Then, Kok Yeow You, Mohamad Ngasri Dimon,
pp.-
Publication Date:2014/12/2
Online ISSN:2188-5079
Summary:
A microwave sensor system has been developed to operate from 2.2 GHz to 4.4 GHz and used to determine the change of soil dielectric constant with various values of gravimetric moisture content from 0% to 26%. Soil samples are placed on a microstrip ring resonator (MRR) sensor and the respective incident and reflected voltages are measured and converted into magnitude of return loss, |S11|. The calculated return loss, |S11| is then correlated with corresponding soil moisture content obtained from oven drying method and also the soil permittivity obtained from commercial dielectric probe with vector network analyzer.