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Microstrip line

A technology of microstrip line and signal line, applied in the field of microstrip line, can solve the problems of chaotic circuit layout, difficult to achieve high frequency and low loss performance of transmission microstrip line, etc., and achieve the effect of reducing loss and improving signal transmission performance.

Pending Publication Date: 2020-02-07
SHENZHEN EVERWIN PRECISION TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In mobile terminals such as mobile phones, radio frequency antenna signals need to be transmitted. Traditionally, coaxial cables and coaxial connectors are used to transmit antenna signals, and this method is only suitable for single-channel transmission; with the rise of 5G, for high-frequency Low loss puts forward higher requirements, and with the development of multi-mode and multi-frequency technology, single-channel transmission can no longer meet the requirements, and multiple channels are needed to transmit antenna signals, while traditional coaxial connectors can only transmit one channel. Multi-channel means There are multiple parallel coaxial connectors and coaxial cables, which causes confusion to the line layout; in the prior art, there have been board-to-board connectors with microstrip lines to transmit antenna signals, and transmission microstrip lines are difficult Achieve the high frequency and low loss performance of the ball required by 5G

Method used

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Embodiment Construction

[0027] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings.

[0028] see figure 1 As shown, the microstrip line of the present application includes a transmission line 10 and pads 20 disposed at both ends of the transmission line 10 . The pad 20 has a width greater than that of the transmission line 10 .

[0029] see figure 2 As shown, the transmission line 10 includes a first base material layer 11, a second base material layer 12 attached to the first base material layer 11, and covers the first and second base material layers 11, 12. Surface protection layer 13,14. The first substrate layer 11 includes a first LCP layer 111 (Liquid Crystal Polymer, a liquid crystal polymer), a first shielding layer 113 covering the outside of the firs...

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Abstract

The invention provides a method for manufacturing a microstrip line. The method comprises the following steps: S10. providing a first base material layer, wherein the first base material layer comprises a first LCD layer, and a first shielding layer and a copper foil layer, which cover the upper and lower surfaces of the first LCD layer, and performing etching treatment on the copper foil layer toremove excess portions to form at least two signal lines; S20. providing a second base material layer, wherein the second base material layer comprises a second LCD layer, and a second shielding layer covering the outer surface of the second base material layer, and pressing the inner surface of the second LCD layer on one side face of the first LCD layer provided with the signal lines, wherein after the pressing is completed, the outer peripheries of the signal lines are covered by the first and second LCP layers; and S30. providing a protective layer, and covering the outer surfaces of thefirst and second shielding layers with the protective layer. The microstrip line provided by the invention is suitable for multi-channel high-frequency signal transmission.

Description

technical field [0001] This application relates to the field of printed circuits, especially a microstrip line. Background technique [0002] In mobile terminals such as mobile phones, radio frequency antenna signals need to be transmitted. Traditionally, coaxial cables and coaxial connectors are used to transmit antenna signals, but this method is only suitable for single-channel transmission; and with the rise of 5G, for high-frequency Low loss puts forward higher requirements, and with the development of multi-mode and multi-frequency technology, single-channel transmission can no longer meet the requirements, and multiple channels are needed to transmit antenna signals, while traditional coaxial connectors can only transmit one channel. Multi-channel means There are multiple parallel coaxial connectors and coaxial cables, which causes confusion to the line layout; in the prior art, there have been connectors with board-to-board structure and microstrip lines to transmit ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P11/00
CPCH01P11/003
Inventor 计亚斌李亚勇
Owner SHENZHEN EVERWIN PRECISION TECH
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