Device for Measuring Dielectric Properties of Powder Materials Based on the Strip Transmission Line

The current state of development of the radio-electronic industry requires the use of high-quality electronic components and high-precision measuring equipment. Increased requirements for quality and manufacturing accuracy are imposed on the materials used. One of the most important materials used in radio electronics are dielectrics, the main parameters of which are the relative permittivity and the value of the dielectric loss tangent in a wide frequency range. In this regard, the problem of accurate measurement of the dielectric properties of radio materials becomes more and more urgent. The particular relevance of assessing the dielectric properties of radiomaterials is associated with the development stage, when the substance under study is often in a powder state. The solution of such a problem makes it possible to synthesize powder materials with a given value of the relative permittivity. The authors of this paper present a new compact device based on a strip transmission line designed to measure the dielectric properties of powder materials using the Nicholson-Ross-Weier method.