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Title :光学結晶を参照物質として用いたマイクロ波同軸プローブ反射法
Authors :中西 真大
Issue Date :10-Apr-2020
Abstract :Coaxial probe reflectometry is a powerful method to evaluate complex permittivity of materials in broadband microwave frequency range. This method requires reference materials, and then water is typically used because of its easy availability and high dielectric constant. However, water is no longer used below 0 °C since it freezes. In this paper, some of optical crystals, KRS-5 and sapphire, are proposed as alternative reference materials to water. These materials have high and frequency independent dielectric constant in microwave frequency range. A fixture to install a disc-shaped crystal to the probe was also developed. The performance of using these optical crystals as references was evaluated by measuring ethanol and compared to conventional method. The result reveals KRS-5 and sapphire can be actually used as reference materials with comparable accuracy to water.
Type Local :紀要論文
ISSN :24345725
Publisher :福岡工業大学総合研究機構
Comment :エレクトロニクス研究所(Electronics Research Laboratory)
URI :http://hdl.handle.net/11478/1534
citation :福岡工業大学総合研究機構研究所所報
Citation :福岡工業大学総合研究機構研究所所報 Vol.2 p.67 -71
Appears in Collections:Vol.2

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