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

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-10-20 DOI:10.3233/jae-230027

Jose L. Alvarez-Flores, Gustavo Vera-Reveles, Francisco R. Castillo Soria, L. Soriano-Equigua, F.M. Maciel Barboza, Pablo A. Alcaraz Valencia, Marco Cardenas-Juarez, E.S. Hernandez-Gomez, Jorge Simon

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Abstract

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.

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用于1.2853 GHz复杂介电常数估计的圆柱形腔谐振器:椰子和大米，香蕉，柠檬，西瓜，菠萝和木瓜的皮肤

有机材料在微波频率下的介电特性的知识对于农业、食品或其他类似研究领域的不同应用是重要的。低成本的扰动圆柱腔谐振器方法是一种常用的测量技术，它考虑了在腔内插入材料样品时的谐振频移。频率漂移加上对参考材料复介电常数的了解，可以对被测材料的介电常数进行估计。本文得到了墨西哥科利马州干燥和粉末状农业废弃物的复介电常数和损失切线为1.2853。被测试的材料是椰子和大米、香蕉、柠檬、西瓜、菠萝和木瓜的皮，因为它们是墨西哥科利马州最丰富的农业废弃物之一。

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

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.