Influence of the radiotransparent radome on characteristics of radar station

Gyulmagomedov, N. Kh.

doi:10.1063/5.0036566

Cited by 2 publications

(2 citation statements)

References 13 publications

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“…The obtained relations, in contrast to the known solutions [5,8,20,22,23,25] make it possible to represent the dielectric layer during aerodynamic heating in the form of a four-terminal network with elements of the resistance matrix (41)-(44), which makes it possible to increase the accuracy of calculations of antenna-radome systems for by taking into account the process of heat distribution over the thickness of the dielectric wall.…”

Section: Discussionmentioning

confidence: 99%

“…At present, when designing fairings, aerodynamic heating is taken into account by averaging the temperature over the wall thickness [8,22,25], and the permittivity corresponding to the average temperature is used in calculations. The averaging method makes it possible to obtain satisfactory results under stationary flight conditions, when the heating temperature is constant throughout the thickness of the coating, that is, in the absence of a temperature gradient.…”

Section: Literature Reviewmentioning

confidence: 99%

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Model of the Flat Fairing Antenna Dielectric Layer With Aerodynamic Heating

Kozlovskiy,

Nimych

et al. 2023

IAPGOS

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To protect the antenna systems of modern aircraft, radio-transparent dielectric fairings are widely used. At low flight speeds, when designing and evaluating the characteristics of the fairing-antenna, it is assumed that the dielectric constant is a constant value and does not depend on the aircraft's flight speed. As the flight speed increases, as a result of aerodynamic heating of the fairing, its dielectric permeability changes, which leads to errors in the processing of received signals. Currently, to take into account the effect of dielectric coatings heating when designing antenna systems, the temperature of the fairing wall is averaged over its thickness. This method during maneuvering and at high flight speeds leads to large errors in determining the characteristics of the fairing antenna since the nature of the temperature distribution along the thickness of the fairing wall is not taken into account. A new approach to the analysis of dielectric layers with their uneven heating along the thickness is proposed. The obtained results make it possible to adjust the signal processing algorithms with analog and digital matrices, as a result of taking into account the emerging heat flows affecting the fairing of the aviation antenna, which leads to the improvement of the characteristics of the antenna systems.

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