Electrical Properties of Material Characteristics Using a Microstrip Patch Sensor

Abstract:

In this paper, the electrical properties of materials were evaluated using a microstrip patch sensor. The sensor was designed for the operating frequency in range of 1.5 to 3 GHz on a DiClad 880 substrate with the permittivity of 2.2. The resonant frequency of the design sensor ,as well as the magnitude of the reflection spectra S₁₁, were analyzed and then simulated three-dimensional finite element modeling when,. The result shows that the increase of the dielectric constant (ε_r) and conductivity (σ) of the material under test (MUT) led to the significant change of the resonant frequency. Thus, the resonant frequency may be used to evaluate the moisture content of the agricultural products.

• Periodical: Advanced Materials Research (Volumes 931-932)
• Pages: 1275-1279
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.931-932.1275
• Online since: May 2014
• Authors: S. Harnsoongnoen*, S. Ritjaroenwattu, U. Charoen-In, Apirat Siritaratiwat
• Keywords: Dielectric Constant, Electrical Conductivity, Electrical Properties, Finite Element, Microstrip Patch Sensor

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