Unlock instant, AI-driven research and patent intelligence for your innovation.

A linear truss-type deployable parabolic cylindrical antenna mechanism

A parabolic cylinder, truss-type technology, applied to antennas, antennas, folded antennas and other directions suitable for movable objects, can solve the problems of large overall size and mass, and achieve high axial expansion ratio and deployment reliability. high effect

Active Publication Date: 2022-07-15
XIDIAN UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A traditional parabolic antenna consists of a metal or metallized parabolic reflective surface, supported by a support structure, and has a large overall size and mass

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A linear truss-type deployable parabolic cylindrical antenna mechanism
  • A linear truss-type deployable parabolic cylindrical antenna mechanism
  • A linear truss-type deployable parabolic cylindrical antenna mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] like Picture 1-1 , Figure 1-2 , Figure 1-3 A linear truss-type deployable parabolic cylindrical antenna mechanism at least comprises: a deployable linear truss 1, a scissor-type stretch arm 2, a truss joint 3, and a stretch-arm drive unit 8; The arm fixing pair 4 is connected with the linear truss unit 1, and the scissor-type stretching arm 2 includes two sets of left and right groups. The scissor-type extension arms 2 are symmetrically arranged on both sides of the deployable linear truss 1;

[0038] like Figure 1-3 As shown, wherein the linear truss unit 1 is composed of two identical basic deployable units 7 and one extension arm drive unit 8 , the two basic deployable units 7 are symmetrically distributed around the extension arm drive unit 8 .

[0039] The deployment of the whole mechanism is realized by the driving cable. The deployment process is divided into two steps. When the mechanism is in the retracted state, such as Picture 1-1 As shown, the scisso...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the field of space-borne deployable antennas, in particular to a linear truss type deployable parabolic cylindrical antenna mechanism, which is characterized by at least comprising: a deployable linear truss unit (1), a scissor-type extending arm (2), The truss joint (3), the extension arm drive unit (8); when the scissor-type extension arm unit (2) is connected by the scissor arm fixing pair (4) the linear truss unit (1), the scissor-type extension arm unit (2) Including two left and right groups, the left and right two sets of scissor-type extension arm units (2) are connected with the middle deployable linear truss unit (1) through the left and right truss joints (3), so that the left and right two groups of scissor-type extension arm units (2) Symmetrically arranged on both sides of the deployable linear truss element (1). It provides a linear truss-type deployable paraboloid antenna mechanism capable of realizing high stiffness, high deployment reliability, large working aperture and high folding aspect ratio of the paraboloid antenna, so as to meet the requirements of deployable paraboloids in large spaces. Antenna stiffness requirements.

Description

technical field [0001] The invention belongs to the field of space-borne deployable antennas, in particular to a linear truss-type deployable parabolic cylindrical antenna mechanism. Background technique [0002] Spaceborne deployable antennas are used in fields such as earth observation, space communication, deep space exploration, manned spaceflight, and meteorological monitoring. They act as "eyes" and "ears" and are essential key equipment. With the development of space technology, satellite antennas require high precision, high stiffness, large working aperture and small mass. However, the space for the rocket fairing to carry the satellite antenna is limited, so the large-diameter satellite antenna must be deployable And it must have a high folding ratio, that is, when the antenna is launched, it is tucked into the rocket's fairing, and automatically unfolds to a predetermined working state after entering orbit. The parabolic antenna has the advantages of high gain, s...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/12H01Q1/10H01Q1/28H01Q15/16
CPCH01Q1/1235H01Q1/10H01Q1/103H01Q1/288H01Q15/16
Inventor 杨东武权朝阳杜迪迪张逸群李申杜敬利张树新
Owner XIDIAN UNIV