Methods for creating and testing multi-band antenna-waveguide paths

Background. The need to create, assemble and configure antenna-waveguide paths of multi-band reflector antennas of satellite communication systems requires the use of various methods for choosing the structure, determining and optimizing the parameters of antenna-waveguide paths. Aim. Reducing the requirements for the volume of computational costs in the development of antenna-waveguide paths and the time spent on their assembly and configuration, as well as analyzing the change in the characteristics of the antenna-waveguide paths when changing the parameters of one of the devices in the path based on the calculation of the characteristics of only this device. Methods. The development of the antenna-waveguide path, which includes the stages of choosing a scheme for constructing a tract and determining the parameters of its constituent devices, is carried out on the basis of a mathematical model of the corresponding variant of constructing a tract using the methods of electrodynamic modeling packages. Results. A technique has been developed for creating a multi-band antenna-waveguide path and a technique for its assembling and tuning. Conclusion. A technique is proposed that allows to reduce the requirements for the computing tools used in the development of antenna-waveguide paths in terms of the amount of RAM and speed of calculations. Implemented the ability to analyze the change in the characteristics of the antenna-waveguide path when changing the parameters of one of the devices in the composition of the antenna-waveguide path based on the calculation of the characteristics of only this device. Sequential performance of measurements of the characteristics of the antenna-waveguide path fragment at the stage of assembly and configuration makes it possible to make a decision on the further assembly of the antenna-waveguide path or making changes to the parameters of the last of the connected devices.