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Device for unfolding microsatellite SAR (Synthetic Aperture Radar) antenna

A micro-satellite and antenna technology, applied to antenna support/mounting devices, antenna combinations with different interactions, suitable for antennas on movable objects, etc., can solve the problems of limiting satellite applications and reducing satellite launch costs, etc. Achieve the effect of reducing launch cost and improving stiffness

Pending Publication Date: 2022-07-12
ELLIPSPACE (BEIJING) TECH CO LTD
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  • Application Information

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Problems solved by technology

[0004] However, since it is necessary to increase the quality of the truss structure to ensure that the truss structure has better rigidity, thereby ensuring the requirements of SAR antenna flatness and other indicators, the deployment mechanism of the truss structure is not conducive to the reduction of satellite launch costs. satellite applications

Method used

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  • Device for unfolding microsatellite SAR (Synthetic Aperture Radar) antenna
  • Device for unfolding microsatellite SAR (Synthetic Aperture Radar) antenna
  • Device for unfolding microsatellite SAR (Synthetic Aperture Radar) antenna

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Embodiment Construction

[0029] In order to better understand the above technical solutions, the above technical solutions will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] like Figure 1-5 As shown, an embodiment of the present invention provides a device for deploying a microsatellite SAR antenna, including: a linkage mechanism, a sliding mechanism and a locking mechanism, the linkage mechanism is connected between the satellite body and the antenna; the The link mechanism is folded or unfolded under the action of the sliding mechanism, and folded or unfolded synchronously with the antenna;

[0031] When the link mechanism is gradually unfolded from the folded state to the maximum position, the sliding mechanism is connected with the locking mechanism and self-locking.

[0032] Among them, the connecting rod mechanism can be provided with multiple connecting rods, and the connecting rods can be connected by hinges or sliding mechanisms....

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Abstract

The invention discloses a device for unfolding a microsatellite SAR (Synthetic Aperture Radar) antenna, which comprises a connecting rod mechanism, a sliding mechanism and a locking mechanism, and is characterized in that the connecting rod mechanism is connected between a satellite body and the antenna; the connecting rod mechanism is folded or unfolded under the action of the sliding mechanism, and is synchronously folded or unfolded with the antenna; when the connecting rod mechanism is gradually unfolded to the maximum position from the folded state, the sliding mechanism and the locking mechanism are connected and self-locked. The device not only ensures that the device has good rigidity after being unfolded, but also can well ensure the requirements of the SAR antenna on indexes such as flatness and the like. And meanwhile, the technical index requirements of the SAR antenna can be ensured in the maneuvering process when the satellite is in orbit. Therefore, the device provided by the invention not only meets the unfolding requirement of the SAR antenna, but also can greatly reduce the satellite launching cost, and provides technical guarantee for popularization and application of satellites.

Description

technical field [0001] The invention relates to the technical field of SAR antennas, in particular to a device for deploying a SAR antenna of a microsatellite. Background technique [0002] SAR (Synthetic Aperture Radar), namely Synthetic Aperture Radar, is an active earth observation system that can observe the earth all day, all weather, and has a certain surface penetration capability. The SAR system has unique advantages in disaster monitoring, environmental monitoring, marine monitoring, resource exploration, crop yield estimation, surveying and mapping, and military applications, and can play a role that other remote sensing methods are difficult to play. . The SAR antenna is a microstrip planar array. At the same time, because the SAR antenna has a large mass and a large size after deployment, the SAR antenna is a typical large-scale deployable antenna. Due to the limitation of the high resolution and accuracy of the SAR antenna, the requirements for the flatness an...

Claims

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Application Information

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IPC IPC(8): H01Q1/10H01Q1/12H01Q1/28H01Q21/29
CPCH01Q1/10H01Q1/1235H01Q1/288H01Q21/29
Inventor 王洋王雷张涛
Owner ELLIPSPACE (BEIJING) TECH CO LTD
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