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Composite material for 5G antenna

A composite material and antenna technology, which is applied in the direction of circuit substrate material, radiating element structure, printed circuit components, etc., can solve the problem of large loss of polyimide, and achieve the effect of improving the stability of use and the peeling strength.

Active Publication Date: 2021-07-09
深圳市华盈新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the advent of the 5G era, the polyimide antenna material widely used in the traditional 4G era can no longer meet the demand. Polyimide has a large loss at the frequency of 2.4GHz and cannot be used for frequencies above 10GHz.

Method used

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  • Composite material for 5G antenna
  • Composite material for 5G antenna
  • Composite material for 5G antenna

Examples

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Embodiment Construction

[0033] The implementation of the present invention will be further described below in conjunction with specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0034] Before further describing the specific embodiments of the present invention, it should be understood that the protection scope of the present invention includes but not limited to the following specific specific embodiments. Generally, the terms used in the embodiments of the present invention are used to describe specific implementations, not to limit the protection scope of the present invention. The test methods for which specific conditions are not indicated in the following examples are usually in accordance with conventional conditions, or in accordance with the conditions suggested by each manufacturer.

[0035] When the examples give numerical ranges, it should be understood that, unless ...

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Abstract

The invention provides a composite material for a 5G antenna. The composite material comprises an LCP film layer and a copper foil layer, and the LCP film layer takes 2, 6-naphthalic acid and di (4-phenol)-1, 2-acetylene as functional monomers and has a low dielectric constant, a node loss and a thermal expansion coefficient. Meanwhile, in cooperation with 3, 4-dicyanophenol, cyano groups in the structure can improve the bonding performance of the LCP material and a copper foil and improve the use stability, but the excessive cyano groups can affect the dielectric property due to a polarity. Meanwhile, the LCP polymer also comprises p-hydroxybenzoic acid so that the components can be reduced within a certain range, and the acceptable degree of the material is improved.

Description

technical field [0001] The invention relates to the field of composite materials for new generation communication technology, in particular to a composite material for 5G antennas. Background technique [0002] LCP is currently an important material widely used in 5G flexible circuit boards. It has excellent properties such as high heat resistance, low water absorption, low dielectric loss and high dimensional stability, and is an ideal material for millimeter wave circuits. With the advent of the 5G era, the polyimide antenna material widely used in the traditional 4G era can no longer meet the demand. Polyimide has a large loss at the frequency of 2.4GHz and cannot be used for frequencies above 10GHz. With its low dielectric constant and low dielectric loss, LCP gradually replaced polyimide film and became one of the most important coating materials for flexible circuit boards. The LCP and the flexible copper foil substrate are pressed together to form a copper clad lamin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K1/03H01Q1/38C08J5/18C08L67/06
CPCH05K1/0353H01Q1/38C08J5/18C08J2367/06
Inventor 贺朋波马茂祥贺鹏勇
Owner 深圳市华盈新材料有限公司
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