PCB jumper structure of antenna system

A technology of PCB board and antenna system, which is applied in the structural connection of printed circuits, the reduction of crosstalk/noise/electromagnetic interference (, electrical components, etc.), and can solve the problems of inability to achieve electromagnetic shielding, inability to use flexibly, and low accuracy , to achieve a good electromagnetic shielding effect, optimize the wiring layout, and achieve the effect of line crossover

Pending Publication Date: 2020-10-27
PROSE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Among them, the disadvantage of the above scheme 1 is that: since the metal bridge runs directly above the crossover line, there is no shielding between the two lines, resulting in a large mutual interference between the two lines, thereby affecting the electrical performance of the two lines
[0008] The disadvantage of the above scheme 2 is that the error of the length of the coaxial line is large, resulting in a large phase error of the line
And the coaxial line will always have a small section of inner conductor exposed to the outside, which will generate radiation, affect the electrical performance of itself and other lines, and cannot achieve complete electromagnetic shielding
[0009] The disadvantage of the above scheme 3 is that the lamination of multiple double-sided panels not only increases the cost, but also the process is more complicated and the accuracy is not high, resulting in errors in amplitude and phase, poor consistency, and cannot be used flexibly
[0010] In addition, due to the large area of ​​the circuit board and the partial line crossing, if multi-layer board lamination is used, the area of ​​all layers needs to be the same size, and the line crossing is only a small area, which leads to a large waste of materials
At the same time, there may be more than one place where the circuit crosses, so after the integral lamination, if there is a problem in some crossed places, the entire circuit board will be scrapped, and the flexibility is very low.

Method used

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  • PCB jumper structure of antenna system
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  • PCB jumper structure of antenna system

Examples

Experimental program
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Effect test

Embodiment 1

[0045] In Embodiment 1, the first PCB board 1 is a Massive MIMO (Massive Multiple Input Multiple Output) antenna calibration board, which is formed by laminating two double-sided copper-clad boards. A plurality of second PCB boards 2 are laminated on the bottom ground layer 11 of the first PCB board, and each second PCB board 2 is connected to two second conductive lines 13 on the first PCB board 1 . Like this, because the area of ​​the second PCB board 2 is small, so can greatly reduce processing cost, in addition, because a plurality of second PCB boards 2 are arranged on a first PCB board 1, so when a second PCB board 2 is damaged, It can be removed and replaced without affecting the overall circuit board, increasing design flexibility.

[0046] The working principle of the calibration board in this embodiment 1 is: the main signal is fed through the radio frequency connector (not shown in the figure), and reaches the radiation unit (not shown in the figure) through the fee...

Embodiment 2

[0054] Different from the above-mentioned embodiment 1, the second PCB board 2 is a double-sided copper-clad board, and its structure mounted on the antenna calibration board (that is, the first PCB board 1) is as follows Figure 4 shown.

[0055] Specifically, combined with Figure 7 , Figure 8 and Figure 10 As shown, in the case of an application with lower requirements for shielding, the second PCB board 2 can also be a double-sided board, thereby reducing costs. Specifically, the second PCB board 2 includes two copper layers, and the two copper layers are specifically the second signal layer 27 and the ground layer 28 distributed up and down, that is, the bottom layer is the ground layer 28, and the top layer is the second signal layer 27. The second signal layer 27 is the third conductive circuit 27 on the above-mentioned second PCB board 2 . A dielectric layer 29 is further included between the second signal layer 27 and the ground layer 28 , and the second signal ...

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Abstract

The invention discloses a PCB jumper structure of an antenna system, which comprises a first PCB and at least one second PCB, wherein the first PCB is provided with a first conductive circuit and a second conductive circuit, the second PCB is attached to the first PCB, a third conductive circuit crossed with the first conductive circuit is arranged on the second PCB, the two ends of the third conductive circuit are connected to the second conductive circuit of the first PCB, and the area of the second PCB is smaller than that of the first PCB. According to the invention, one short and small cross line on the original PCB is additionally designed into one PCB with a small area, so that the material consumption of the product is reduced, the cost is reduced, the local design flexibility is high, the profile design is low, and the scheme is suitable for SMT welding. Due to the fact that cross design and use can be achieved, wiring layout can be optimized to the maximum extent, and differential loss is reduced. When one circuit board is damaged, the damaged circuit board can be taken down and replaced without affecting the whole circuit board.

Description

technical field [0001] The invention relates to an antenna system, in particular to a PCB jumper wire structure of the antenna system which can solve the problem of line crossover. Background technique [0002] With the continuous development of mobile communication technology, the requirements for PCB boards used in communication equipment (such as antenna systems) are getting higher and higher. PCB boards with compact structure, excellent electrical performance, low cost and high reliability have become The focus of domestic and foreign research at this stage. [0003] In order to realize the miniaturization of the PCB board, the routing layout should be optimized as much as possible to make the circuit network of the PCB board compact, but this may lead to the problem of crossing lines. Traditionally, there are three main solutions to solve the crossover problem of PCB boards: [0004] Option 1: Use a metal bridge to connect directly above the crossover line, and solder...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): H05K1/02H05K1/14H05K1/11
CPCH05K1/0218H05K1/0298H05K1/115H05K1/144
Inventor张茜茜孙静黄萍张妍
OwnerPROSE TECH CO LTD