Skin reinforced structure antenna reflector and preparation method thereof

An antenna reflector and skin technology, applied in antennas, electrical components, etc., can solve problems such as failure to experimentally verify the correctness of engineering applications, neglect of the functional role of ribs, poor thermal stability of the structure, etc., to achieve the fault tolerance of the laminate High, reduce the factors affecting the accuracy, reduce the weight effect
CN108511920AInactive Publication Date: 2018-09-07SHANGHAI COMPOSITES SCI & TECH CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
SHANGHAI COMPOSITES SCI & TECH CO LTD
Publication Date
2018-09-07
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention provides a skin reinforced structure antenna reflector and a preparation method thereof; the reflector comprises a plane of reflection and back ribs arranged on the side of the plane ofreflection; the plane of reflection comprises a single layer skin; the back ribs are in a curved surface multi-grid frame structure; the reflector preparation method comprises the following steps: S1,respectively making the skin and the back ribs; S2, gluing, assembling and curing the skin with the back ribs; S3, demoulding after curing is done, and obtaining the final product. The rigidity and thermal expansion coefficient of the skin and the back ribs are matched; the back ribs can be integrally designed and moulded with an external interface and a joint; the prepared antenna reflector is light in weight, good in rigidity, high in profile precision, and good in thermal stability; the antenna reflector with the caliber of 2.5m can realize the effect that the profile precision root mean square (RMS) reaches 15um; when the ambient temperature rises from 20 to 120 DEGC or drops to 180 DEG C, the plane of reflection profile thermal deformation RMS value can be only 5um or 12 um.
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Description

Technical field

[0001] The present invention relates to the technical field of antenna reflectors, in particular to a skin-reinforced structure antenna reflector and a preparation method thereof, and in particular to a light-weight and high-thermal-stability skin-reinforced structure antenna reflector and a preparation method thereof . Background technique

[0002] As human beings continue to explore the universe, high-sensitivity and high-resolution spacecraft have become indispensable tools, and high-precision spaceborne antennas have emerged and are in urgent need. At present, antennas are gradually developing in the direction of large aperture, high frequency band, high gain, and high energy density. When the antenna diameter increases and the operating frequency increases, the requirements for the accuracy of the reflecting surface become higher and higher, and the mutual influence and mutual restriction between the electromagnetic and mechanical structural factors of the a...

Claims

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