A.F. Kriachko1, B.A. Ayukov2, V.K. Losev3

1–3 Saint-Petersburg State University of Aerospace Instrumentation (St. Petersburg, Russia)

Formulation of the problem. Antennas of radio engineering systems are located near surfaces and objects with high conductivity, which leads to the appearance of secondary radiation of currents at the facility, induced by the primary field of the antenna. In addition, the design of the antenna itself can include conductive elements that do not directly participate in radiation, but significantly affect the appearance of secondary radiation. Consequently, the task of developing methods for calculating the scattering characteristics of waveguide horn antennas is urgent.

Target. Propose a working model for the construction of waveguide horn antennas with improved matching properties with the environment and reduced characteristics of scattering of electromagnetic waves.

Results. On the basis of the method of moments, a method is proposed for improving the matching of the horn antenna aperture using metal plates located on its walls near the aperture.

Practical significance. A promising direction for further research can be considered the search for technical solutions to expand the possibilities of matching the horn at higher types of waves or their scattering in directions that do not coincide with the radiation source and suppression of cross-polarization components. 

Kriachko A.F., Ayukov B.A., Losev V.K. Reducing the scattering of electromagnetic waves from horn-waveguide antennas. Science Intensive Technologies. 2021. V. 22. № 8. P. 16−20. DOI: https://doi.org/10.18127/j19998465-202108-03 (in Russian)

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