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Fabrication method of terahertz metal-coated hollow rectangular waveguide combination

A technology of metal plating and rectangular waveguide, which is applied to waveguides, waveguide devices, circuits, etc., can solve the problems of gold plating layer and cast copper layer damage, difficult removal of dissolved products, deformation, etc., and achieve the effect of improving efficiency

Active Publication Date: 2020-12-11
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

However, due to the small size of the end face of the waveguide cavity and the large aspect ratio of the waveguide substrate, the rectangular mandrel made of pure aluminum or pure nickel is prone to deformation when the ratio of length to diameter is large, and it is extremely difficult to dissolve the metal material inside the cavity. , after a long time of dissolution, it is difficult to remove the dissolved product inside the cavity, and the dissolution reagent can easily cause damage to the gold-plated layer and cast copper layer. These problems seriously hinder the development and application of this technology

Method used

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  • Fabrication method of terahertz metal-coated hollow rectangular waveguide combination
  • Fabrication method of terahertz metal-coated hollow rectangular waveguide combination
  • Fabrication method of terahertz metal-coated hollow rectangular waveguide combination

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Embodiment Construction

[0046] In order to make the content of the present invention easier to understand, the present invention will be further explained in detail below based on a manufacturing verification example of a "concave" cavity combined with the accompanying drawings.

[0047] Figure 1-1 to Figure 1-8 The "concave" cavity fabrication process is illustrated. like Picture 1-1 , Figure 1-2 As shown, after the fine electrolytic wire cutting of the first rectangular sacrificial mandrel is completed, since the width of the rectangular sacrificial mandrel is greater than its height, generally one surface is selected in the width direction and insulated with insulating glue. like Figure 1-3 , Figure 1-4 As shown, the three non-insulated surfaces of the rectangular sacrificial mandrel after one-sided insulation are electroplated with gold layer and electroformed copper layer in sequence. like Figure 1-5 , Figure 1-6 As shown in Fig. 1, the insulating glue is removed and the surface of ...

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Abstract

The invention relates to a combined manufacturing method for a terahertz metal coated hollow rectangular waveguide, and belongs to the field of terahertz micro-device precision manufacturing. The method is characterized in that a concave cavity of the terahertz metal coated hollow rectangular waveguide is manufactured; a concave cover plate of the terahertz metal coated hollow rectangular waveguide is manufactured; the concave cavity is combined with the concave cover plate to obtain the terahertz metal coated hollow rectangular waveguide with an inner cavity with relatively high size precision and high surface quality. According to the method, the high-working-frequency terahertz metal coated hollow rectangular waveguide can be efficiently, precisely and integrally manufactured; and the method has important significance.

Description

technical field [0001] The invention relates to a method for manufacturing a terahertz metal-coated hollow-core rectangular waveguide assembly, which belongs to the field of precision manufacturing of terahertz micro-devices. Background technique [0002] Terahertz waves refer to electromagnetic waves with frequencies in the range of 0.1THz to 10THz and wavelengths in the range of 0.03mm to 3mm. It is the only spectrum resource in electromagnetic waves that has not yet been fully developed. Terahertz technology has great application potential in high-speed wireless communication, security inspection, non-destructive testing, electronic countermeasures, radar imaging and other fields, and has great strategic significance for promoting national economic development and strengthening national security. [0003] Terahertz waveguide is a key device for terahertz signal transmission. Metal air-core rectangular waveguide has the advantages of low loss, good flexibility and high saf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P3/12H01P11/00
Inventor 曾永彬毕晓磊曲宁松
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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