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Airborne stable platform for active phased-array antenna

A phased array antenna and stable platform technology, which is suitable for antennas on movable objects, aircraft parts, radio wave measurement systems, etc., can solve the problems of poor stability of stable platforms, small load ratio, and insufficient shafting rigidity , to achieve the effects of small radio interference, improved reliability, and improved reliability

Active Publication Date: 2018-08-10
CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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Problems solved by technology

[0005] (1) The servo controller is installed in the comprehensive processing case, which not only produces electromagnetic interference to the servo control device, but also affects the normal communication between the servo controller and the stable platform, and is also not conducive to the modularization of the stable platform functions. The phenomenon of “equipment with one type of radar” will increase R&D costs
[0006] (2) The load ratio of the main load-bearing frame of the stable platform is small, and the stiffness of the shaft system is not enough, resulting in poor stability of the stable platform, which affects the imaging quality of the radar

Method used

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Embodiment 1

[0041] see Figure 1~3 , an airborne stable platform for an active phased array antenna, including a carrier frame 1, a drive device 2, an angle feedback device 3, a photoelectric slip ring assembly 4, an auxiliary frame 5 and a servo control device 6. The carrier frame 1 is installed on the carrier frame 8, the driving device 2, the angle feedback device 3, and the photoelectric slip ring assembly 4 are integrated and installed inside the carrier frame 1, and the lower end of the auxiliary frame 5 is connected to the carrier frame 1 The upper end of the auxiliary frame 5 is connected to the servo control device 6 , and the lower end of the supporting frame 1 is connected to the antenna load 7 .

[0042] see Figure 4 , the bearing frame 1 includes a base 11, a lower shell 12, a retaining ring 13 for a hole, a retaining ring 14 for a shaft, a first rectangular connector 15, a second rectangular connector 16, a flange 17, a cylindrical roller bearing 18. End cover 110, two an...

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Abstract

The invention discloses an airborne stable platform for an active phased-array antenna. The airborne stable platform for the active phased-array antenna comprises a carrying frame, a driving device, an angle feedback device, a photoelectric slip ring assembly, an auxiliary frame and a servo control device. The carrying frame is mounted on an aerial carrier frame, the driving device, the angle feedback device and the photoelectric slip ring assembly are integrally installed inside the carrying frame, the lower end of the auxiliary frame is connected to the upper end of the carrying frame, the upper end of the auxiliary frame is connected to the servo control device, the driving device is provided with a motor, the mandrel of the rotor portion of the motor is a hollow shaft, an azimuth shaftof the circular tube structure is arranged in the hollow shaft in a sleeving mode, the upper part of the azimuth shaft is connected with the angle feedback device, the lower end surface of the azimuth shaft is connected with the upper end surface of a mounting board, the lower end surface of the mounting board is connected with the active phased-array radar antenna, and the motor drives the radarantenna to continuously rotate by 360 degrees. The airborne stable platform for the active phased-array antenna is wide in application range, high in integration and large induty ratio.

Description

technical field [0001] The invention relates to the technical field of airborne radar, in particular to an airborne stable platform for active phased array antennas. Background technique [0002] Maritime surveillance airborne radar is mainly responsible for wide-area search and surveillance tasks at sea, taking into account reconnaissance tasks in areas such as coasts, islands, and ports, capturing and tracking targets of concern in the surveillance area, and providing information such as the position, speed, and course of the target. The stable platform of airborne radar usually needs to have the functions of continuous rotation, tracking, positioning, and stopping, and it should also have the ability to install multiple aircraft platforms. [0003] With the development of the radar system, the radar antenna has changed from the traditional passive parabola to the active phased array, and the load weight of the antenna has also increased significantly, which puts forward h...

Claims

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Application Information

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IPC IPC(8): B64D47/00G01S7/02H01Q1/32H01Q1/28
CPCB64D47/00G01S7/02H01Q1/28H01Q1/32
Inventor 王虎李坤杨毅郭绪猛蒋千龚晓凌
Owner CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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