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Extensible solid surface antenna reflective face of shape memory material

A technology of memory material and solid surface, applied in antennas, electrical components, etc., can solve the problem that the deployable antenna reflector cannot meet the requirements of large aperture and high frequency at the same time, and achieves a smooth deployment movement process, less system structure and control links. , the effect of small impact

Active Publication Date: 2008-01-16
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In order to solve the problem that the existing deployable antenna reflectors for spaceflight cannot meet the requirements of large aperture and high-frequency operation at the same time, the present invention proposes a deployable solid surface antenna reflector made of shape memory material

Method used

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  • Extensible solid surface antenna reflective face of shape memory material
  • Extensible solid surface antenna reflective face of shape memory material
  • Extensible solid surface antenna reflective face of shape memory material

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specific Embodiment approach 1

[0015] Specific Embodiment 1: This embodiment is described with reference to Fig. 1 and Fig. 2. This embodiment consists of a reflective surface body 1, a first shape-memory material hoop reinforcement 2, a second shape-memory material hoop reinforcement 3 and radial reinforcement The reflective surface body 1 is a parabolic shape with a circular opening in the middle, and the first shape memory material hoop reinforcement 2 is fixedly connected to the upper edge of the back of the reflective surface body 1, and the reflective surface body 1 The lower edge of the back is fixedly connected with the second shape memory material hoop reinforcement 3, and the back of the reflective surface body 1 between the first shape memory material hoop reinforcement 2 and the second shape memory material hoop reinforcement 3 is arranged There are radial stiffeners 4 arranged in a parabolic direction; the first shape memory material hoops the stiffener 2 and the second shape memory material hoo...

specific Embodiment approach 2

[0016] Specific embodiment 2: This embodiment will be described with reference to Fig. 1 and Fig. 2. The difference between this embodiment and specific embodiment 1 lies in the thickness of the first shape memory material hoop reinforcement 2 and the second shape memory material hoop reinforcement 3 0.02-80 mm respectively; other composition and connection methods are the same as those in Embodiment 1.

specific Embodiment approach 3

[0017] Embodiment 3: The difference between this embodiment and Embodiment 2 is that the shape memory composite material of the first shape memory material hoop reinforcement 2 and the second shape memory material hoop reinforcement 3 is made of shape memory polymer material, reinforced phase material and / or resistance material; the volume content of each component material is: 5-98 parts of shape memory polymer material, 2-95 parts of reinforced phase material, and 0-100 parts of resistance heating material; other compositions and connection methods are the same as The second embodiment is the same.

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Abstract

An extensible solid surface antenna reflector made from shape memory materials relates to a extensible antenna reflector, which is to resolve the problem that the prior extensible antenna reflector used in aerospace can not simultaneously meet the requirements of large diameter and working at high frequency. The reflector body thereof (1) is in a shape of paraboloid provided with a round opening in the middle, a first shape memory material ring reinforcing component (2) is fixedly connected with the upper edge of the back surface of the reflector body (1), a second shape memory material ring reinforcing component (3) is fixedly connected with the lower edge of the back surface of the reflector body (1), and a radial reinforcing plates (4) arrayed in a parabolic direction are equipped on the back surface of the reflector body (1) between the first shape memory material ring reinforcing component (2) and the second shape memory material ring reinforcing component (3). The invention is provided with a solid surface, the diameter of the antenna is large, working frequency is high (higher than 40 GHz), surface density of the reflector is low, antenna gain is relatively high, and also structure is simple, system structures and control processes is less, and operation reliability of the system is high.

Description

technical field [0001] The invention relates to a deployable antenna reflection surface. Background technique [0002] Due to the space limitation of the space launch vehicle, the deployable antenna reflector for spaceflight must be folded before launching, and it must be automatically unfolded when working in orbit. Deployable antenna reflectors for aerospace must have properties such as light weight and high reliability. With the rapid development of aerospace technology, satellite communications, radio astronomy, and radar technology, the demand for deployable antenna reflectors for aerospace applications has greatly increased. [0003] The structure of the deployable antenna reflector for aerospace mainly includes: a deployable antenna reflector, a back frame system and a feed source, and its operating frequency is generally in the high frequency band (1GHz to 100GHz). Deployable antenna reflectors for aerospace are generally divided into two categories according to th...

Claims

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Application Information

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IPC IPC(8): H01Q15/14H01Q15/16C08L25/04C08L63/00C08L75/04C08L67/00C08L47/00C08K7/00C08K3/08
Inventor 冷劲松刘彦菊兰鑫王肖华
Owner HARBIN INST OF TECH
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