Evaluation of the Study of Dielectric and Metal-Dielectric Waveguides Using Digital Twins Under Modern Conditions

While designing functional waveguide modules for radio communication and location systems, it is often necessary to measure electromagnetic field parameters. Optimizing the parameter measurement for the module in question is the goal of this paper. Currently, these problems can be solved by creating a digital twin of the device to study wave processes with it. The adequacy of the digital twin model shall be tested through experimentation with physical prototypes. In practice, there can be problems with setting the initial modeling conditions, analyzing wave processes in waveguide junctions, and against irregularities and multiyear operation of the device. At the same time, the precision of the solution depends on the research grid and the time required to obtain the numerical solution. During the physical experimentation, the main problem is assuring the manufacturing precision of the prototype and consideration of the individual specifics of metrological instruments. In this article, the authors analyze the modern methods of measuring the parameters of electromagnetic fields and suggest an assessment methodology for measurement results. The device examination method with NRD waveguides assures high precision and adequacy of data under the optimal combination of temporal and economic resources. This article presents a case study of a bicone end waveguide junction and analyzes the results of the numerical and physical experimentation. The data obtained show that the maximum error between the measurements of the digital twin and the physical prototype is below 5 percent.