RU-2861283-C1 - RADAR ANTENNA ARRAY

RU2861283C1RU 2861283 C1RU2861283 C1RU 2861283C1RU-2861283-C1

Abstract

FIELD: radar. SUBSTANCE: invention relates to radar antenna arrays with a cooling system. A radar antenna array with stiffening ribs arranged parallel to the distribution line of antenna modules along the web of the antenna array with antenna modules covering their walls, the housing of the antenna array is made sealed and combined with a radome of the antenna modules, made in the form of a protective electromagnetically transparent wall of the housing of the antenna array, and comprising ventilation means, according to the invention, the antenna modules are located on a frame formed by stiffening ribs and a wall closed along the perimeter with an internal channel for supplying an air flow isolated in the housing, which is supplied through holes made in the stiffening ribs to the antenna modules and to the evaporation zone of the heat exchanger, wherein the frame with heat-loaded antenna modules, the protective electromagnetically transparent wall and the heat exchanger form an air-liquid cooling circuit. EFFECT: ensuring a uniform thermal regime of the antenna modules, units, assemblies and reliable functioning of the antenna array due to the design of the cooling system for the antenna elements. 1 cl, 8 dwg

Inventors

KHOMYAKOV ALEKSANDR VIKTOROVICH
IVANOV ANDREJ VLADIMIROVICH
KURBATSKIJ SERGEJ ALEKSEEVICH
Prisakar Sergej Vasilevich
Sinitsin Roman Yurevich
ALESHICHEVA LARISA IVANOVNA
BELUGIN BORIS SERGEEVICH
Stepnov Aleksandr Lvovich
NIKOLAEV DMITRIJ SERGEEVICH
Slepova Olga Nikolaevna

Dates

Publication Date: 20260504
Application Date: 20251016

Claims (1)

A radar antenna array with stiffeners arranged parallel to the distribution line of the antenna modules along the web of the antenna array with antenna modules enclosing their walls, provided with a housing with a base for combining with a suspension unit, with the possibility of rotating the antenna array in its working position using drives, the housing of the antenna array is made sealed and combined with a fairing of the antenna modules, made in the form of a protective electromagnetic-transparent wall of the antenna array housing, and containing a ventilation means with at least one air circuit, characterized in that the antenna modules are located on a frame formed by stiffeners and a wall closed along the perimeter with an internal channel, for supplying an air flow isolated in the housing, entering through openings made in the stiffeners, to the antenna modules and into the evaporation zone of the heat exchanger, wherein the frame with heat-loaded antenna modules, the protective electromagnetic-transparent wall and the heat exchanger form an air-liquid cooling circuit, and the design The heat exchanger is assembled from parallel heat-conducting plates, where coaxial holes are made with edges of heat pipes and fans passing through them with tension, which are cut into segments and secured to the structural elements of the heat exchanger.

Description

Field of technology to which the invention relates The present invention relates to radar, and more specifically to radar antenna arrays that can be used in radio systems for determining target coordinates using the monopulse direction finding method. An antenna array is known (patent WO No. 2009045939AZ, IPC H05K 7/20, 2009), wherein the autonomous cooling system includes a cooling structure, a heat exchanger, and a pump for circulating liquid coolant through the cooling circuit. The cooling system is powered by a remote power source. The cooling structure includes a plurality of inlet pipes, outlet pipes, and cooling platforms. Each of the cooling platforms has a coolant channel that begins at one of the plurality of inlet pipes and ends at one of the plurality of outlet pipes, which provide the passage of flowing coolant. The cooling structure further includes at least one support plate detachably mounted on at least one of the plurality of cooling platforms. One or more antenna elements associated with the antenna array are mounted on a support plate detachably mounted on at least one of a plurality of cooling platforms. The flow of fluid coolant through the cooling channel dissipates the thermal energy generated by the one or more antenna elements. The disadvantages of this device are: - low reliability of the cooling system; - complexity of servicing the design of the antenna array cooling system; - low thermal performance in a wide range of power values. The closest in technical essence is a radar antenna array with stiffeners fixed in slots in the base, positioned parallel to the antenna module distribution line along the antenna array web and equipped with cooling radiators with antenna modules enclosing their walls. The stiffeners are integrally formed, forming a rigid structure with the outer hollow wall of the antenna array housing, which contains inlets for forced air supply by ventilation means. The stiffeners, together with the outer wall of the antenna array, form contour channels for the passage of airflow isolated from the interior of the antenna array. The radar antenna array is provided with a housing with a base for combining with a suspension unit, with the ability to deploy from a horizontal transport position to a vertical working position and rotate the antenna array in its working position using drives, the antenna array housing is made sealed and combined with a fairing of the antenna modules, made in the form of a protective electromagnetically transparent wall of the antenna array housing, the antenna modules are located to ensure a thermal regime under conditions of forced supply by means of ventilation of an external air flow, isolated from the internal volume of the antenna array, through the inlet and distribution openings of a hollow longitudinal frame element (RU Patent No. 2435264, IPC H01Q 21/00, 2011). The disadvantages of this technical solution are: - insufficient air supply to remove heat from the antenna modules when increasing the power of the antenna array; - uneven provision of thermal conditions for antenna modules, units and blocks; - low maintainability and complex design of the antenna array. Disclosure of the essence of the invention The technical result is to ensure a uniform thermal regime for antenna modules, units, blocks and reliable operation of a radar antenna array in an extended range of power values (including as a result of an increase in the radiation frequency) due to the intensification of cooling of antenna modules, units, blocks under the conditions of the structural implementation of the antenna array, as well as the maximum use of external and internal air flows for the removal of internal heat while simultaneously improving the repairability of the radar antenna array. The stated technical result is achieved by a radar antenna array with stiffeners arranged parallel to the antenna module distribution line along the antenna array web with antenna modules enclosing their walls. The antenna array housing is provided with a housing with a base for connection to a suspension unit, with the ability to rotate the antenna array in its operating position using drives. The antenna array housing is hermetically sealed and integrated with an antenna module fairing, which is designed as a protective electromagnetically transparent wall of the antenna array housing and contains a ventilation means with at least one air circuit. The antenna modules are located on a frame formed by stiffeners and a wall closed around the perimeter with an internal channel for supplying airflow isolated within the housing. This airflow enters through openings in the stiffeners onto the antenna modules and into the evaporation zone of the heat exchanger. In this case, the frame with heat-loaded antenna modules, the protective electromagnetically transparent wall and the heat exchanger form an air-liquid cooling circuit, and the heat exchanger structure is assembled from par