A.N. Yakimov1, A.R. Bestugin2, I.A. Kirshina3

1 St. Petersburg State University of Aerospace Instrumentation (St. Petersburg, Russia)
 

When using a corner reflector of electromagnetic waves in a single-position radio beam system of detection, both its scattering characteristics and the characteristics of the entire system change due to the influence of the underlying surface. The complexity of a rigorous electrodynamics description and evaluation of such an influence necessitates the development of new approaches to the study of this phenomenon. One of such approaches is the use of numerical methods of mathematical modeling. A mathematical model has been developed to solve the problem of assessing the influence of the underlying Earth's surface on the scattering characteristic and the retransmission coefficient of a corner reflector operating as part of a single-position radio beam system of detection. The constructed mathematical model of a single-position radio beam system of detection with a corner reflector based on the use of geometric and physical optics methods and the results of its model study are presented. It is shown that with a change in the distance from the transmitting antenna to the reflector and the angle of incidence of the electromagnetic wave on the reflector, the magnitude of the retransmission coefficient changes significantly, and the influence of the underlying surface causes many local pulsations relative to the corresponding smooth curves describing these dependencies. The results of mathematical modeling indicate the possibility of controlling the scattering characteristic of the corner reflector and the signal level of the system of detection by changing the spatial position and optimizing the design of the corner reflector. The results obtained can be recommended for practical use in the design of single-position radio-beam systems of detection.

Yakimov A.N., Bestugin A.R., Kirshina I.A. Features of using a corner reflector in a single-position radio beam system of detection. Achievements of modern radioelectronics. 2022. V. 76. № 12. P. 21–28. DOI: https://doi.org/ 10.18127/j20700784-202212-04 [in Russian]

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