CN-122000669-A - Ultra-wideband high-power high-integration blade type active subarray

CN122000669ACN 122000669 ACN122000669 ACN 122000669ACN-122000669-A

Abstract

The application relates to the technical field of active subarrays, in particular to an ultra-wideband high-power high-integration blade type active subarray. The technical scheme includes that the multifunctional integrated calibration system comprises an active subarray frame, an antenna unit integrating a calibration network, a T/R assembly and a driving assembly which adopt a floating coaxial connector and are inserted in a double-sided opposite mode, a multifunctional integrated network board integrated through a hot melting and pressing process, and a side integrated external port. The application realizes high-density integration, high performance and high maintainability of the active subarrays through the design of the double-sided opposite insertion and blind insertion structure and floating connection of the modules, realizes light weight and high-efficiency heat dissipation through the design of the frame hollow and the S-shaped curved water channel, and effectively reduces the manufacturing cost through the lamination of the network plates and the standardized jointed boards of the antenna. The application is particularly suitable for the airborne radar platform with strict requirements on weight, volume and maintainability.

Inventors

DU XIAOHUI
Gu Zhuang
YU BO

Assignees

南京吉凯微波技术有限公司

Dates

Publication Date: 20260508
Application Date: 20260116

Claims (8)

1. An ultra-wideband high-power high-integration active blade subarray, comprising: The active subarray comprises an active subarray frame (M1), wherein a cooling water channel is integrated in the active subarray frame (M1) and is provided with a water joint (M15), and the active subarray frame (M1) is provided with a line end guide pin (M11), a line end mounting hole (M12), a subarray end guide pin (M13) and a subarray end mounting hole (M14) which are used for rapid mounting; The antenna array is fixed on one side of the active subarray frame (M1) through a first blind insertion structure formed by a wire end guide pin (M11) and a wire end mounting hole (M12), and comprises a plurality of Vivaldi-type antenna units (M2), wherein a calibration network is integrated inside the antenna units (M2); The T/R assemblies (M8) are arranged on two sides of the antenna array in a double-sided opposite-inserted mirror image layout mode, and at least one driving assembly (M9) is arranged on the back surface of the active subarray frame (M1), and the T/R assemblies (M8) and the driving assemblies (M9) are both in a brick type design and are integrated with a floating coaxial connector; The multifunctional integrated network board (M6) is nested and fixed in the active subarray framework (M1) and positioned below the T/R component (M8) and the driving component (M9), the multifunctional integrated network board (M6) integrates the energy storage capacitor board (M3), the radio frequency power division network control board (M4) and the current-carrying power board (M5) into a whole through a hot melting pressing process, and a multifunctional integrated network board cover board (M7) is arranged above the T/R component (M8); The integrated in the external port of active subarray frame (M1) side, external port includes left radio frequency total mouth connector (M16), right radio frequency total mouth connector (M17), low frequency control connector (M18), radio frequency scaling connector (M19) and hold-off type high-power touch finger joint (M10), multi-functional comprehensive network board (M6) are connected with external signal through KK1 connector (M20) and KK2 connector (M21).
2. The ultra-wideband high-power high-integration active blade subarray according to claim 1, wherein the active subarray frame (M1) forms a second blind insertion structure through a subarray end guide pin (M13) and a second subarray end mounting hole (M14), and the active subarray frame (M1) is spliced with the array surface overall frame through the second blind insertion structure.
3. The ultra-wideband high-power high-integration active blade subarray of claim 2, wherein the floating coaxial connectors of the T/R assembly (M8) and the driving assembly (M9) are connected with corresponding interfaces on the multifunctional integrated network board (M6) by pluggable radio frequencies.
4. An ultra-wideband high-power high-integration active blade subarray according to claim 3, wherein the energy storage capacitor plate (M3) is electrically connected with the interception type high-power finger contact connector (M10) and the current-carrying power panel (M5), the current-carrying power panel (M5) distributes power for the T/R assembly (M8) and the driving assembly (M9), and the radio frequency power division network control panel (M4) is used for radio frequency signal distribution and control signal transmission.
5. The ultra-wideband high-power high-integration active blade subarray according to claim 4, wherein the active subarray frame (M1) is made of an aluminum alloy material, reinforcing ribs are arranged inside the active subarray frame (M1), cover plates are arranged on two sides of the active subarray frame (M1), hollow-out designs are adopted in areas below the cover plates on two sides, cooling water channels are integrated inside the active subarray frame (M1) and are provided with water connectors (M15), and the cooling water channels are distributed in an S curve.
6. An ultra wideband high power highly integrated active sub-array as claimed in claim 5, wherein said scaling network integrated inside said antenna element (M2) is coupled and 50 ohm band-load matched.
7. The ultra-wideband high-power highly integrated active sub-array as claimed in claim 6, wherein said antenna array is comprised of four standardized antenna sub-unit tiles, said four antenna sub-units comprising a single real unit V1, a single real unit V2, a single virtual unit V1 and a single virtual unit V2.
8. The ultra-wideband high-power high-integration active blade subarray according to claim 7, wherein the hot-melt lamination process is characterized in that a hot-melt adhesive sticking strip is filled among the energy storage capacitor plate (M3), the radio frequency power distribution network control board (M4) and the current-carrying power supply board (M5) through a custom die, and the integrated forming is carried out after heating and pressurization.

Description

Ultra-wideband high-power high-integration blade type active subarray Technical Field The invention relates to the technical field of active subarrays, in particular to an ultra-wideband high-power high-integration blade type active subarray. Background The active phased array radar realizes modularization and maintainability of a system by dividing a large antenna array surface into a plurality of active subarrays with independent receiving and transmitting functions. Each active subarray typically integrates an antenna element, a scaling network, a T/R assembly, a drive assembly, an integrated network, a cooling system, and the like. With the progress of gallium nitride and microwave monolithic integrated circuit technology, the power and integration level of active devices such as T/R components are greatly improved, which puts higher demands on the heat dissipation, the structural density and the electrical performance of the subarrays. However, existing active sub-arrays, when oriented towards heavy, bulky platforms such as airborne, often face the following challenges: 1. The contradiction between high-density integration and high maintainability is that a large number of components are densely arranged, so that a single module is difficult to replace, and the maintenance time is long; 2. the balance problem between high performance, light weight and low cost is that complex structure and expensive technology are often adopted to realize high power and ultra-wideband performance, so that the weight and the cost are high; 3. The system level assembly efficiency is low, and the connection between the subarrays and the antennas and the connection between the subarrays and the array surface generally need precise alignment and complicated wiring, so that the deployment speed is influenced. Disclosure of Invention The application aims at solving the problems in the background technology and provides an ultra-wideband high-power high-integration active subarray which can achieve high integration, high performance, high maintainability, low cost and light weight. The ultra-wideband high-power high-integration blade type active subarray comprises an active subarray frame, wherein a cooling water channel is integrated in the active subarray frame and provided with a water joint, and the active subarray frame is provided with a line end guide pin, a line end mounting hole, a subarray end guide pin and a subarray end mounting hole for quick mounting; The antenna array is fixed on one side of the active subarray frame through a first blind insertion structure formed by a wire end guide pin and a wire end mounting hole, and comprises a plurality of Vivaldi-type antenna units, and a calibration network is integrated inside the antenna units; A plurality of T/R components arranged on two sides of the antenna array in a double-sided opposite-inserted mirror image layout mode, at least one driving component arranged on the back surface of the active subarray frame, the T/R assembly and the driving assembly are both of brick type design and are integrated with a floating coaxial connector; The multifunctional comprehensive network board is nested and fixed in the active subarray framework and positioned below the T/R assembly and the driving assembly, integrates an energy storage capacitor board, a radio frequency power division network control board and a current-carrying power board into a whole through a hot melt lamination process, and a multifunctional comprehensive network board cover plate is arranged above the T/R assembly; The integrated in the external port of active subarray frame side, external port includes left radio frequency total mouth connector, right radio frequency total mouth connector, low frequency control connector, radio frequency calibration connector and high-power of entrapment type contact finger joint, multi-functional comprehensive network board passes through KK1 connector and KK2 connector and external signal connection. Optionally, the active subarray frame forms a second blind insertion structure through the subarray end guide pin and the second subarray end mounting hole, and the active subarray frame is spliced with the array surface overall frame through the second blind insertion structure. Optionally, the floating coaxial connectors of the T/R assembly and the driving assembly are connected with corresponding interfaces on the multifunctional integrated network board in a pluggable radio frequency manner. Optionally, the energy storage capacitor plate is electrically connected with the interception type high-power contact finger joint and the current-carrying power supply board, the current-carrying power supply board distributes power for the T/R assembly and the driving assembly, and the radio frequency power distribution network control board is used for radio frequency signal distribution and control signal transmission. Optionally, the active subarray frame is made of an alu