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Method for making curved frequency selective surface by three-dimensional printing technology

A frequency-selective surface and three-dimensional printing technology, which is applied in image data processing, instruments, etc., can solve the problems of unsuitable and non-expandable surface FSS, etc., and achieve the effect of simple preparation process

Active Publication Date: 2015-06-10
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

[0006] The purpose of the present invention is to solve the technical problems in the prior art that are not applicable to the preparation of non-expandable curved surface FSS, and to provide a method for manufacturing curved surface FSS by three-dimensional printing technology

Method used

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  • Method for making curved frequency selective surface by three-dimensional printing technology
  • Method for making curved frequency selective surface by three-dimensional printing technology
  • Method for making curved frequency selective surface by three-dimensional printing technology

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with accompanying drawing.

[0032] Such as figure 1 As shown, the steps of the method for making the curved surface FSS by the three-dimensional printing technology of the specific embodiment of the present invention are:

[0033] (1) Surface FSS simulation design: establish the surface FSS and its compound wall model in the professional electromagnetic simulation software;

[0034] Considering FSS's resonant bandwidth, angular stability, anti-cross-polarization characteristics, surface quasi-periodic characteristics and other response characteristics and the difficulty of processing, the Y-shaped array is an ideal structural unit for radome, so this The FSS design of the embodiment selects the Y-shaped unit, but structural units such as cross, square, circle and ring can also implement the present invention;

[0035] In the established model, accurately input the electrical parameters of each layer...

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Abstract

The invention relates to a method for making a curved frequency selective surface by a three-dimensional printing technology, belonging to the technical field of micro machining and microwaves and solving the technical problem that no method in the prior art is suitable for preparing a curved frequency selective surface which is not developable in shape. The method for making the curved frequency selective surface comprises the steps of: firstly, establishing a three-dimensional CAD (Computer Aided Design) model of a bearing substrate of the curved frequency selective surface and a three-dimensional CAD model of metallized protection shell of the bearing substrate according to a simulation design result, then discretizing the CAD model, converting the CAD model into an STL (Standard Template Library) file, inputting the STL file to a three-dimensional printer, rapidly phototyping the CAD models to obtain the bearing substrate of the curved frequency selective surface and the metallized protection shell of the bearing substrate, and carrying out surface metalizing to obtain the thin-screen curved FSS (Frequency Selective Surface). The method provided by the invention also can be used for making a thick-screen curved FSS. The method provided by the invention is simple, and can be used for making a curved FSS which can be developable into a plane, and a curved FSS which can not be developable into the plane.

Description

technical field [0001] The invention relates to a method for manufacturing a curved frequency-selective surface by three-dimensional printing technology, and belongs to the fields of micromachining and microwave technology. Background technique [0002] Frequency Selective Surface (FSS) is a microwave periodic structure. Any conductor patch or aperture structure periodically distributed on a plane or curved surface will produce diffraction phenomenon for electromagnetic waves in the microwave to optical band. The shape of the periodic array elements, the distance between each other, and the conditions of the medium around them all affect the scattered field. If the influence of the medium is not considered, resonance occurs when the cell size is an integer multiple of the half wavelength of the incident wave. When the FSS array unit resonates with an incident wave of a certain frequency, the incident wave will be totally reflected (patch-type structure) or fully transmitted...

Claims

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Application Information

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IPC IPC(8): B29C67/00G06T19/00B22F5/00
Inventor 梁凤超高劲松徐念喜焦健张建王岩松冯晓国方春易陈新汤洋
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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