Cylindrical cavity resonator for complex permittivity estimation at 1.2853 GHz: Coir and skins of rice, banana, lemon, watermelon, pineapple and papaya

The knowledge of dielectric properties of organic materials at microwave frequencies is important for different applications in agriculture, food, or other similar research areas. The method of the low-cost disturbed cylindrical cavity resonator is a common measurement technique that considers reson...

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Bibliographic Details
Published in:International journal of applied electromagnetics and mechanics 2023-11, Vol.73 (3), p.213-223
Main Authors: Alvarez-Flores, Jose L., Vera-Reveles, Gustavo, Castillo-Soria, Francisco R., Soriano-Equigua, Leonel, Maciel-Barboza, F.M., Alcaraz-Valencia, Pablo A., Cardenas-Juarez, Marco, Hernandez-Gomez, E.S., Simon, Jorge
Format: Article
Language:English
Subjects:
Agricultural wastes
Cavity resonators
Complex permittivity
Dielectric properties
Frequency shift
Microwave frequencies
Organic materials
Papayas
Permittivity
Pineapples
Resonant frequencies
Rice
Water melons
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Summary:The knowledge of dielectric properties of organic materials at microwave frequencies is important for different applications in agriculture, food, or other similar research areas. The method of the low-cost disturbed cylindrical cavity resonator is a common measurement technique that considers resonant frequency shift when inserting samples of materials inside the cavity. Frequency shifts together with the knowledge of the complex permittivity of a reference material allow the estimation of the permittivity of a material under test. In this paper, the complex permittivity, and the loss tangent of dried and powdered agricultural wastes from the state of Colima in Mexico are obtained at 1.2853. The materials under test are coir and skins of rice, banana, lemon, watermelon, pineapple, and papaya since they are one of the most abundant agricultural wastes in the state of Colima in Mexico.
ISSN:1383-5416
1875-8800
DOI:10.3233/JAE-230027