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Flattened antenna lamination device for one-rocket multi-satellite SAR (Synthetic Aperture Radar) satellite

A flattened, parallel antenna technology, applied in the field of multi-satellite SAR satellite flattened antenna lamination device, to achieve the effect of improved disassembly, light weight and low processing cost

Active Publication Date: 2022-03-11
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the present invention provides a one-rocket multi-satellite SAR flat antenna lamination device to solve the problem of spaceborne SAR satellite configuration and antenna deployment method under the constraints of rocket carrying capacity

Method used

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  • Flattened antenna lamination device for one-rocket multi-satellite SAR (Synthetic Aperture Radar) satellite
  • Flattened antenna lamination device for one-rocket multi-satellite SAR (Synthetic Aperture Radar) satellite
  • Flattened antenna lamination device for one-rocket multi-satellite SAR (Synthetic Aperture Radar) satellite

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Embodiment Construction

[0028] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0029] Such as figure 1 , figure 2 As shown, the present invention provides a multi-satellite SAR flat stack structure, including antenna coupling plate 1, compression belt 2, and parallel antenna 3. Multiple groups of parallel antennas 3 are stacked together, and two adjacent groups of parallel antennas 3 cooperate with the holes of the bushing 4 through the pins on the main connecting frame 11 . The pins on the compression band 2 cooperate with the holes on the parallel antennas 3 at both ends, so that the parallel antennas are pressed against each other to complete the integration of solid connection.

[0030] Such as image 3 As shown, the main body connecting frame 11 is pressed on the surface of the antenna main body plate 12, the folding arm 14 passes through the main body connecting frame 11, the solar sail panel 13 is connected to the two ends...

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Abstract

The invention discloses a one-rocket multi-star SAR (Synthetic Aperture Radar) flattening antenna lamination device. Comprising multiple groups of circular phased array parallel antennas and two compression bands. Each group of parallel antennas comprises two antenna coupling plates which are connected together in a butt joint mode. A plurality of groups of parallel antennas are buckled and stacked together through the pins and the holes of the main body connecting frames, the pin of one main body connecting frame compresses the compression spring in the hole of the next main body connecting frame, and the compression belts are fixed at the two ends of the antennas. When the parallel antenna is launched into the space, the compression belt is loosened, and the antenna coupling plate in the parallel antenna is automatically unfolded due to power provided by the compression spring in the main body connecting frame. According to the invention, the main function is realized through the fixed connection integrated design of the circular phased array antenna and the multi-satellite launch, the precision, the expansion efficiency and the space utilization rate of the SAR antenna are greatly improved, and the satellite launch cost is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of Synthetic Aperture Radar (SAR for short), in particular to a multi-satellite SAR satellite flattened antenna lamination device. Background technique [0002] Distributed spaceborne SAR is an important working mode of spaceborne SAR. Compared with traditional spaceborne SAR, distributed spaceborne SAR can observe ground targets from multiple angles, so it has significant advantages in three-dimensional imaging, moving target detection, and accurate description of scattering information. However, since distributed spaceborne SAR usually consists of multiple satellites, launching multiple satellites separately will greatly increase the cost of the launch vehicle. Therefore, the multi-satellite launch method has been widely used as an important means to reduce launch costs. [0003] The antenna is the part with the largest volume and weight in the SAR system, and it is also an important factor affecting the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/08H01Q1/12
CPCH01Q1/08H01Q1/085H01Q1/1235
Inventor 曾涛王岩丁泽刚李喆龙腾
Owner BEIJING INSTITUTE OF TECHNOLOGYGY