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Structure for improving performance of MPI substrate FPC antenna and preparation method

An antenna and substrate technology, which is applied in the field of structure and preparation for realizing the improvement of the performance of the MPI substrate FPC antenna

Active Publication Date: 2020-07-10
上海科谷纳新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] But how to enhance the water absorption and dielectric strength of the MPI substrate FPC antenna through simple and convenient means, which not only ensures the working performance to meet the requirements of all working frequency bands from low frequency to high frequency, but also maintains the cost advantage of MPI, and solves the problem of 5G equipment. The base material of FPC antenna is still a hot spot of attention

Method used

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  • Structure for improving performance of MPI substrate FPC antenna and preparation method
  • Structure for improving performance of MPI substrate FPC antenna and preparation method

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preparation example Construction

[0035] A method for preparing a structure that realizes the performance improvement of an MPI substrate FPC antenna, comprising the following steps:

[0036]Step (1), first coating the polymer material on the surface of the MPI substrate FPC antenna 3, before coating the fluorinated siloxane material, the polymer material remains in an uncured fluid state;

[0037] Step (2), coating fluorinated siloxane material, curing at 200-240°C for 5-12 minutes, to obtain the first set of complete and firm double-layer coating structure;

[0038] Step (3), on the first group of double-layer coating structure, sequentially coat according to step (1) and step (2), arrange several groups of double-layer coating structure layers periodically on the surface of MPI substrate FPC antenna 3, realize The performance improvement of the MPI substrate FPC antenna 3 is to improve the short board of the 5G terminal equipment FPC antenna based on the MPI substrate, while still maintaining its advantages...

Embodiment 1

[0043] Such as Figure 1-2 Shown, a kind of structure that realizes the performance improvement of MPI base material FPC antenna, comprises the double-layer coating structure layer that is periodically arranged on the upper and lower surface of MPI base material FPC antenna 3, the double-layer coating structure layer includes from inside to outside sequentially The base layer 1 and the surface layer 2 are arranged, the base layer 1 and the surface layer 2 are periodically arranged alternately on the upper and lower surfaces of the MPI base material FPC antenna 3, and the upper and lower surfaces of the MPI base material FPC antenna 3 are respectively attached to the base layer 1 , the base layer 1 and the surface layer 2 are bonded together through functional group coupling, the base layer 1 is composed of a polymer material, the surface layer 2 is composed of a fluorinated siloxane material, and at least one of the polymer materials can be combined with fluorinated A function...

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Abstract

The invention provides a structure for improving the performance of an MPI substrate FPC antenna and a preparation method. The structure comprises a plurality of groups of base layers and surface layers which are periodically and alternately arranged, the base layers are hydrophilic and elastic polymer material layers, the surface layers are made of a fluorinated siloxane material, and the base layers and the surface layers are mutually combined through coupling acting force to form special acting bonds, so that a complete and firm flexible-rigid double-layer coating structure is formed. According to the structure for improving the performance of an MPI substrate FPC antenna and the preparation method provided by the invention, the surface of an MPI substrate FPC antenna formed by combining the base layers and the surface layers is provided with low-polarity fluorine-containing molecular groups, the dielectric constant epsilon(r) is not larger than 3, the dielectric constant is reduced, the total thickness is 0.3-5 [mu]m, the thickness of the antenna is not affected, the elastic base layers can also absorb part of external stress, a certain deformation and displacement space is provided, and no negative influence is caused to the space design flexibility of the antenna.

Description

technical field [0001] The invention belongs to the technical field of FPC antennas, and in particular relates to a structure and a preparation method for improving the performance of an MPI substrate FPC antenna. Background technique [0002] With the rapid development and wide application of 5G technology, the receiving antenna of 5G terminal equipment has also experienced great changes and technical challenges. The antenna design of the mobile phone receiving end before 5G, such as the typical 4G antenna design, the common solution is to use the FPC flexible circuit board design to connect the wires to the relevant components. The FPC flexible circuit board usually uses polyamide with high insulation performance. The imine (PI) film is used as the basic material, and then processed on the surface of the PI film to form a flexible copper clad laminate (FCCL) and other steps, and finally the finished FPC is made. [0003] However, in the process of the development of commu...

Claims

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Application Information

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IPC IPC(8): H05K1/03
CPCH05K1/036H05K2201/0195H05K2201/05
Inventor 钟骐羽金宇王洋顾斌胡桑苒
Owner 上海科谷纳新材料科技有限公司
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