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Novel three-layer net-shaped expandable antenna truss structure with beam forming

A technology of beam forming and truss structure, which is applied in the field of space-borne deployable antenna structure design, can solve the problems of large diameter of retraction and enlargement of the circumference of antenna retraction, etc., to reduce the diameter of retraction, simplify the way of hanging cables, and accurately fix effect of position

Active Publication Date: 2019-04-16
XIDIAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the parallelogram unit of AM-1, the horizontal rods, vertical rods and oblique rods are all in the same plane. When the antenna truss is in a fully retracted state, all the rods are vertically distributed on the circumference, which will cause the antenna’s retracted circumference to change. Large, that is, the folded diameter is too large

Method used

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  • Novel three-layer net-shaped expandable antenna truss structure with beam forming
  • Novel three-layer net-shaped expandable antenna truss structure with beam forming
  • Novel three-layer net-shaped expandable antenna truss structure with beam forming

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Embodiment 1

[0031] In this embodiment, a new three-layer mesh expandable antenna truss structure with beamforming is mainly composed of several parallelogram structural units spliced ​​and assembled. Adjacent parallelogram structural units share a three-way joint and intermediate joint. , a closed ring polygonal structure composed of five-way joints and vertical rod assemblies; such as image 3As shown, a parallelogram structural unit includes a left vertical bar assembly (1), a middle joint (2), an upper three-way joint (3), an upper cross bar (4), a thick oblique bar (5), an upper five-way joint ( 6), middle joint (7), right vertical bar assembly (8), lower three-way joint (9), lower cross bar (10), locking mechanism (11), thin oblique bar (12) and lower five-way joint (13), wherein the left vertical bar assembly (1) and the right vertical bar assembly (8) have the same structure, the upper horizontal bar (4) and the lower horizontal bar (10) are horizontal bars with the same length and...

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Abstract

The present invention discloses a novel three-layer net-shaped expandable antenna truss structure with beam forming. The structure is assembled by a plurality of parallelogram structure units. Each unit consists of two three-way connectors, two middle connectors, an upper five-way connector, a lower five-way connector, a clamping mechanism, a left vertical rod component, a right vertical rod component, two transverse rods, a thick oblique rod and a thin oblique rod. Each middle connector is fixed on a ruler rod of the corresponding vertical rod component, and the middle connectors form the antenna truss of an upper layer, a middle layer and a lower layer fixed positions with the three-way connectors and the five-way connectors. By designing the five-way connectors as double-layer structures and placing the thick oblique rod and the thin oblique rod on an outer layer surface, the transverse acceptance ratio of the antenna is improved. The clamping mechanism is arranged on the thick oblique rod, so that the double-way clamping of the expandable truss mechanism is realized. Hanging line structures of all connectors are designed, so that the hanging line mode is simplified, and the boundary line fixing position(s) are pinpointed.

Description

technical field [0001] The invention belongs to the field of space-borne deployable antenna structure design, in particular to a new three-layer mesh deployable antenna truss structure with beam-forming with upper, middle and lower fixed joints, which can be applied to beam-forming The truss support structure of the three-layer mesh antenna. Background technique [0002] Large-scale spaceborne antennas are widely used in electronic reconnaissance, weather monitoring, space communication and other fields. With the rapid development of antenna technology, the circular deployable antenna has become a research field in the aerospace community of various countries because of its large aperture, light weight, and high storage ratio. the key of. [0003] In the field of loop deployable antennas, the most classic truss structure form is the AM-1 loop deployable antenna. The deployable structure of the AM-1 antenna is composed of several parallelogram units. In the parallelogram st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/08H01Q15/16
CPCH01Q15/161
Inventor 董波张逸群张晗赵泽杨东武李申
Owner XIDIAN UNIV
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