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Expandable mesh parabolic cylinder antenna

A parabolic cylinder and antenna technology, applied in the field of satellite antennas, can solve problems such as the inability to form a parabolic cylinder, and achieve the effects of reducing storage volume, reducing transmission cost, and improving profile accuracy

Inactive Publication Date: 2015-04-08
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This single degree of freedom form cannot form a parabolic cylinder

Method used

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  • Expandable mesh parabolic cylinder antenna
  • Expandable mesh parabolic cylinder antenna
  • Expandable mesh parabolic cylinder antenna

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Embodiment Construction

[0033] Below in conjunction with accompanying drawing, the present invention will be further described.

[0034] refer to figure 1 , The present invention includes a deployment mechanism 1, a mesh surface support mechanism 2, a flexible cable 3, and a wire mesh 4. Wherein: the mesh support mechanism 2 includes m hinged rib expansion units 21, m≥4, and m is an even number, m=8 is taken in this example, and these hinged rib expansion units 21 are symmetrically installed on both sides of the expansion mechanism 1; Cables 3 are staggeredly installed on the mesh surface support mechanism 2, and wire mesh 4 is fixed on the flexible cables 3; the unfolding mechanism 1 adopts a one-dimensional unfolding truss, such as figure 2 shown.

[0035] refer to figure 2 , The one-dimensional unfolded truss of the present invention includes m unit long ribs 11 , m unit short ribs 12 , 2m-4 longitudinal connecting rods 13 and 2m five-way joints 14 . Wherein: the structure of each longitudin...

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Abstract

The invention discloses an expandable mesh parabolic cylinder antenna, and mainly solves problems of large storage volume and low surface precision in the prior art. The expandable mesh parabolic cylinder antenna is composed of an expansion mechanism (1), a mesh surface supporting mechanism (2), flexible cables (3) and a wire mesh (4). The mesh surface supporting mechanism (2) is symmetrically installed on both sides of the expansion mechanism (1). The flexible cables (3) are interlaced on the mesh surface supporting mechanism. The wire mesh (4) is disposed on the flexible cables (3). During folding up, the expansion mechanism is retracted along a straight line; the mesh surface supporting mechanism is folded up and retracted on both sides of the expansion mechanism; and the flexible cables and the wire mesh are retracted in remaining space of the mesh surface supporting mechanism. During expansion, the expansion mechanism is expanded along a straight line; the mesh surface supporting mechanism is stretched towards both sides of the expansion mechanism (1); and the flexible cables tighten and support the wire mesh (4) so as to form a parabolic cylindrical surface. The expandable mesh parabolic cylinder antenna has the advantages of small storage volume and high surface precision, and can be used for searching targets in the air and measuring target azimuths.

Description

technical field [0001] The invention belongs to the technical field of satellite antennas, in particular to an expandable mesh parabolic cylindrical antenna, which can be used for searching targets in the air and measuring the azimuth angle of targets. Background technique [0002] In the fields of satellite communication, wireless broadcasting system, earth observation, land remote sensing, deep space exploration and deep space communication in the future, satellite antenna is one of the essential key equipment. In order to meet the needs of multi-function, multi-band, large capacity, high power, and long life, satellite antennas inevitably tend to be larger in diameter. However, in order to compress transportation space and reduce transmission costs, satellite antennas need to be foldable . [0003] Traditional parabolic reflector antennas are composed of metal or metallized parabolic reflective surfaces and are supported by supporting components. The overall size and mas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/08H01Q15/16
Inventor 郝佳张树新段宝岩张逸群宗亚雳杨癸庚
Owner XIDIAN UNIV
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