L.I. Ponomarev1, A.A. Vasin2, O.V. Terekhin3, A.L. Gusev4

1–3 Moscow Aviation Institute (National Research University) (Moscow, Russia)

4 JSC «Central Design Bureau of Apparatus Building» (Tula, Russia)

In conditions of active combat operations, the issues of protecting radio-electronic equipment from external destructive influences become relevant. For this purpose, radio-transparent fairings, characterized by increased resistance to mechanical influences, which are also called radio-transparent armored screens, can be used.

The purpose of the work is to explore various design options for bullet-resistant fairings for airborne radars.

For this purpose, various options for radome designs, characterized by increased resistance to mechanical influences, were considered, analytical relationships were given that can be used to calculate the reflection and transmission coefficients of a plane wave when it falls on a multilayer flat radome, and the results of electrodynamic modeling of a flat radome with a three-layer wall made of fiberglass and silicon nitride, which has high strength characteristics.

As a practical significance, it should be noted that the presented analytical formulas can be used to optimize reflection losses in the walls of the radome being developed at the initial stage of selecting the number and electrodynamic parameters of layers in order to ensure high accuracy in calculating the reflection coefficients and transmission of waves both perpendicular and parallel polarization. It is shown that when protecting the phased array using the proposed radio-transparent cover, it is possible to provide scanning in an angular sector of ±47° in the plane φ= 0° and ±37° in the plane φ = 90°.

Ponomarev L.I., Vasin A.A., Terekhin O.V., Gusev A.L. Radio-transparent armored screens for airborne radar systems. Achievements of modern radioelectronics. 2023. V. 77. № 9. P. 11–26. DOI: https://doi.org/10.18127/j20700784-202309-02 [in Russian]

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