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Special beam application-oriented scissors-type curved-surface reusable mesh type deployable antenna

A scissors-type, special technology, applied in the field of satellite antennas, can solve the problem of single beam function and unable to shape the beam, and achieve the effect of complete functions, high utilization rate and small size

Active Publication Date: 2016-12-14
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and propose a scissors-type curved surface multiplexing mesh deployable antenna for special beam applications, so as to solve the problem that the existing mesh deployable antenna has a single beam function and cannot pass through the shape of the reflective surface. Changing the problem of implementing special beam applications such as shaped beams

Method used

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  • Special beam application-oriented scissors-type curved-surface reusable mesh type deployable antenna
  • Special beam application-oriented scissors-type curved-surface reusable mesh type deployable antenna
  • Special beam application-oriented scissors-type curved-surface reusable mesh type deployable antenna

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Embodiment 1

[0032] refer to figure 1 , the present invention provides a scissors-type curved surface multiplexing mesh deployable antenna for special beam applications, including a scissors-type truss structure 1, an inner cable mesh 2, an outer cable mesh 3, a vertical cable 4, and a wire mesh 5, It is characterized in that: the scissor-type truss structure 1 includes m unfolding units, and the scissor-type hinge 13 is connected with the inclined rod 15 to realize the folding and unfolding of the entire antenna system, and provide support for the entire antenna; wherein m≥6, and is an integer multiple of 6; the inner cable net 2 is located inside the space formed by the scissors truss structure 1, refer to Figure 7, the inner cable net 2 is composed of an upper inner cable net 21 and a lower inner cable net 22 woven by soft cables, and the upper inner cable net 21 and the lower inner cable net 22 are respectively connected with the scissors type truss structure 1; the outer Cable net 3...

Embodiment 2

[0034] On the basis of embodiment 1, with reference to figure 2 , each unfolded unit of the scissors truss structure 1 includes a fixed joint 11, a sliding joint 12, a scissors hinge 13, a vertical bar 14 and a diagonal bar 15; the fixed joint 11 is arranged on the upper and lower sides of the vertical bar 14 At both ends, the sliding joint 12 is slidingly connected to the vertical bar 14 , and the fixed joint 11 and the sliding joint 12 are also respectively connected to the scissor hinge 13 through the inclined bar 15 . The m expansion units are connected end-to-end to form a ring-shaped scissors truss structure 1, wherein every two adjacent expansion units are connected by a common vertical rod 14 .

[0035] refer to image 3 , the fixed joint 11 includes a hanging cable screw 16 and a fixed joint main body 111, wherein the lower surface of the fixed joint main body 111 located at the upper end of the vertical bar 14 is connected to the upper end of the vertical bar 14; t...

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Abstract

The invention discloses a special beam application-oriented scissors-type curved-surface reusable mesh type deployable antenna which comprises a scissors-type truss structure, inner cable nets, outer cable nets, vertical cables and wire meshes, wherein the inner cable nets and the outer cable nets are connected with the scissors-type truss structure; the inner cable nets are located in a space formed by the scissors-type truss structure; the outer cable nets are respectively located on the upper end surface and the lower end surface of the space formed by the scissors-type truss structure; the vertical cables are connected with the inner cable nets and the outer cable nets; the wire meshes are attached to the inner sides of the inner cable nets; the inner cable nets and the wire meshes form a reflection surface of a whole antenna system; and application of special beams such as shaped beams is realized by changing the shapes of the inner cable nets. The special beam application-oriented scissors-type curved-surface reusable mesh type deployable antenna solves the problems that the existing mesh type deployable antenna has a single function and the application of the special beams such as the shaped beams cannot be realized by changing the shape of the reflection surface, has the advantages of small folded size, simple structure and diversified function, and can be applied to the design of a space-borne antenna required by the special beams such as the shaped beams.

Description

technical field [0001] The invention belongs to the technical field of satellite antennas, and specifically relates to a scissors-type curved surface multiplexing mesh expandable antenna for special beam applications in the field of satellite antennas, which can be applied to special beam requirements including spot beams and shaped beams. Spaceborne antenna design. Background technique [0002] With the rapid development of aerospace science and technology, spaceborne antennas play an increasingly important role in satellite communications, wireless broadcasting systems, earth observation, land remote sensing, and deep space exploration. In order to meet the requirements of multi-function, multi-band, and multi-beam, spaceborne antennas tend to be larger in diameter. Mesh deployable antenna is one of many types of spaceborne antennas. Because it uses wire mesh as the reflective surface material, it effectively reduces the weight of the system. It is currently the fastest-g...

Claims

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Application Information

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IPC IPC(8): H01Q15/16H01Q1/08
CPCH01Q15/161
Inventor 张树新张逸群姜文明段宝岩杜敬利宋立伟杨东武崔传贞
Owner XIDIAN UNIV
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