A spaceborne phased array antenna synchronous deployment mechanism

Abstract

The invention discloses a synchronous deployment mechanism of a space-borne phased array antenna. The invention comprises a satellite main body, a phased array sub-array, a limit rod, a scissor mechanism and a push rod; horizontal guide rails are respectively arranged on the bottom of both sides of the satellite main body, and a push rod is slidably connected to each horizontal guide rail, and the satellite main body passes two The push rods on the side horizontal guide rails are respectively connected with two scissor mechanisms, and multiple phased array sub-arrays are connected in sequence between the two scissor mechanisms, and two adjacent phased array sub-arrays are also connected by a limit rod , one end of the limit rod is hinged on the phased array, and the other end of the limit rod is hinged on the scissor mechanism; the push rod drives the scissor mechanism to expand, and the expansion of the scissor mechanism makes each phased array sub-array synchronously unfolded. The invention reduces the number of components and the number of moving parts, reduces the complexity of the structure, improves the practicality, and realizes the tight splicing of the fronts through the short-range folding after fully unfolding, self-locking, and improves the shape and surface accuracy.

Description

technical field [0001] The invention relates to a space-borne phased array deployment mechanism, in particular to a space-borne phased array antenna synchronous deployment mechanism. Background technique [0002] With the advancement of science and technology, phased array radars have been widely used in national defense and military fields such as target detection and fast tracking, such as the American "Pave Claw" long-range early warning radar and sea-based X-band radar. The detection space of controlled array radar is limited, and the spaceborne phased array radar combined with space satellite has a wider detection space, which has become another development direction of phased array radar. [0003] Since the phased array antenna of the spaceborne phased array radar needs to be kept in a folded state during satellite launch and transportation, and needs to be fully unfolded during operation, an unfolding mechanism is generally installed on the spaceborne phased array ant...

AI Technical Summary

Problems solved by technology

[0009] The principle of the inflatable unfolding mechanism is to make a closed structure with flexible materials. After entering the orbit, the closed structure is expanded by filling gas. Poor stability, low stiffness, immature technology

[0010] The existing space deployment mechanism has the problems of low surface accuracy, complex structure, and low rigidity. At the same time, with the increase of the number of deployment planes, the degree of asynchrony in the deployment process of the existing space deployment mechanism gradually increases. The complexity increases, the number of moving parts increases, and the reliability of the overall mechanism decreases, which is not suitable for the space environment

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