Connector structure for improving crosstalk interference

By designing an independent electrical conduction loop in the connector, the impedance path is reduced, solving the problems of signal attenuation and crosstalk interference in high-frequency signal transmission, and achieving better signal transmission performance.

CN121748880APending Publication Date: 2026-03-27VSO ELECTRONICS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-27
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

Existing connectors suffer from significant signal attenuation and severe crosstalk interference during high-frequency signal transmission, leading to an increase in the overall impedance path.

Method used

Design a connector structure in which a gap is provided between the first grounding connecting piece and the second grounding connecting piece to form an independent electrical conduction loop, which is respectively connected to the grounding terminals of the first and second terminal groups to reduce the overall impedance path.

Benefits of technology

It effectively reduces signal attenuation in high-frequency signal transmission and improves crosstalk interference, meeting the requirements of high-speed connectors, such as PAM4 and PCIe 5.0 standards.

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Abstract

The invention discloses a connector structure for improving crosstalk interference. The connector structure comprises a base, a first grounding connecting sheet and a second grounding connecting sheet, the base is provided with a first terminal group and a second terminal group; the first grounding connection sheet is arranged in the base and is in contact connection with a first grounding terminal arranged in the first terminal group; the second grounding connection sheet is arranged in the base and is in contact connection with a second grounding terminal arranged in the second terminal group; the interval space is arranged between the first grounding connection sheet and the second grounding connection sheet and is not conducted with each other, so that the first terminal group and the first grounding connection sheet form an independent electrical conduction loop, and the second terminal group and the second grounding connection sheet form another independent electrical conduction loop, thereby reducing the impedance path of the whole connector, and improving the reliability of the connector. When the antenna is applied to high-frequency transmission, signal attenuation is effectively reduced, and crosstalk interference is improved.
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Description

TECHNICAL FIELD

[0001] The present application relates to a connector structure for improving crosstalk interference, and more particularly to a connector capable of effectively reducing signal attenuation and improving crosstalk interference during high-frequency transmission. BACKGROUND

[0002] Referring to FIGS. 1 and 2, a conventional connector A is shown, wherein the connector A is provided with an upper tongue plate A1 and a lower tongue plate A2, an upper terminal group B is provided on the upper tongue plate A1, and a lower terminal group C is provided on the lower tongue plate A2. The upper terminal group B is provided with a plurality of upper ground terminals B1, and the lower terminal group C is provided with a plurality of lower ground terminals C1. The connector A is internally provided with a ground sheet D, a plurality of upper ground pins D1 are provided on the ground sheet D and connected to the plurality of upper ground terminals B1 of the upper terminal group B, and a plurality of lower ground pins D2 are provided on the ground sheet D and connected to the plurality of lower ground terminals C1 of the lower terminal group C, so that the plurality of upper ground terminals B1 and the plurality of lower ground terminals C1 of the connector A are connected to each other through the ground sheet D. Figure 1 Figure 2 However, the conventional connector A is provided with the ground sheet D to form a complete conductive loop for the upper ground terminals B1 and the lower ground terminals C1 of the upper terminal group B and the lower terminal group C, which results in an increase in the overall impedance path of the connector A. When the conventional connector A is applied to high-frequency signal transmission, the high-frequency signal transmission is greatly affected by the increased impedance, which results in an increase in the signal attenuation of the conventional connector A.

[0003] Therefore, it is an object of the present application to provide a connector capable of effectively reducing signal attenuation and improving crosstalk interference when applied to high-frequency signal transmission.

[0004] Therefore, it is an object of the present application to provide a connector capable of effectively reducing signal attenuation and improving crosstalk interference when applied to high-frequency signal transmission. SUMMARY

[0005] The present application relates to a connector structure for improving crosstalk interference, and more particularly to a connector capable of effectively reducing signal attenuation and improving crosstalk interference during high-frequency transmission.

[0006] The present application relates to a connector structure for improving crosstalk interference, and more particularly to a connector capable of effectively reducing signal attenuation and improving crosstalk interference during high-frequency transmission.

[0007] ​The base has a first terminal group and a second terminal group extending from its front end, with the first terminal group and the second terminal group being spaced apart from each other to form a first gap space. The first terminal group has at least two first grounding terminals, and the second terminal group has at least two second grounding terminals. The first grounding connecting piece is disposed inside the base and adjacent to the first terminal group, and the first grounding connecting piece extends with at least two first connecting terminals. The multiple first connecting terminals are used to contact the multiple first grounding terminals of the first terminal group or to make indirect contact with them through other conductors, so that the multiple first grounding terminals of the first terminal group are interconnected. The second grounding connecting piece is disposed inside the base and adjacent to the second terminal group, and the second grounding connecting piece extends with at least two second connecting terminals. The multiple second connecting terminals are used to contact the multiple second grounding terminals of the second terminal group or to make indirect contact with them through other conductors, so that the multiple second grounding terminals of the second terminal group are interconnected.

[0008] A second gap is provided between the first grounding connector and the second grounding connector so that they are not electrically connected. The first terminal group is in contact with the first grounding connector to form an independent electrical conducting circuit, and the second terminal group is in contact with the second grounding connector to form another independent electrical conducting circuit. The second gap can also be filled with an insulating material to make it electrically non-conductive.

[0009] Therefore, the technical feature of the present invention is that: the connector utilizes a second gap space between the first grounding connecting piece and the second grounding connecting piece to prevent them from being electrically connected, so that the first terminal group and the first grounding connecting piece form an independent electrical conducting circuit, and the second terminal group and the second grounding connecting piece form another independent electrical conducting circuit, thereby reducing the impedance path of the overall connector, and when applied to high-frequency signal transmission, it can effectively reduce signal attenuation and improve crosstalk interference. Attached Figure Description

[0010] Figure 1 A 3D view of an existing connector.

[0011] Figure 2 This is an exploded view of an existing connector.

[0012] Figure 3 This is a perspective view of the connector structure for improving crosstalk interference according to the present invention.

[0013] Figure 4 This is an exploded view of the connector structure for improving crosstalk interference according to the present invention.

[0014] Figure 5 This is a cross-sectional side view of the connector structure for improving crosstalk interference according to the present invention.

[0015] Figure 6 This is a schematic diagram of the S-parameter signal test of the connector structure of the present invention and an existing connector.

[0016] Explanation of reference numerals in the attached drawings: 1-Connector; 11-Base; 12-First tongue plate; 13-Second tongue plate; 14-First gap space; 15-Second gap space; 2-First terminal group; 21-First grounding terminal; 3-Second terminal group; 31-Second grounding terminal; 4-First grounding connecting piece; 41-First connecting terminal; 5-Second grounding connecting piece; 51-Second connecting terminal; A-Connector; A1-Upper tongue plate; A2-Lower tongue plate; B-Upper terminal group; B1-Upper grounding terminal; C-Lower terminal group; C1-Lower grounding terminal; D-Grounding piece; D1-Upper grounding pin. Detailed Implementation

[0017] To provide a more complete and clear explanation of the technical content, objectives, and effects achieved by this invention, a detailed description is provided below, along with reference to the accompanying drawings and figures:

[0018] Please refer to the following: Figures 3-5 As shown, the present invention provides a connector structure for improving crosstalk interference. The connector 1 includes a base 11, a first grounding connection piece 4 and a second grounding connection piece 5.

[0019] The base 11 has a first tongue plate 12 and a second tongue plate 13 extending from its front end, which are corresponding to each other. The inward surface of the first tongue plate 12 is provided with a first terminal group 2, and the inward surface of the second tongue plate 13 is provided with a second terminal group 3, so that the first terminal group 2 and the second terminal group 3 are mutually spaced and corresponding, forming a first gap space 14 between the first terminal group 2 and the second terminal group 3. The first terminal group 2 is provided with at least two or more first grounding terminals 21, for example, the first terminal group 2 of the present invention is provided with four first grounding terminals 21. The second terminal group 3 is provided with at least two or more second grounding terminals 31, for example, the second terminal group 3 of the present invention is provided with four second grounding terminals 31.

[0020] The first grounding connection piece 4 is disposed inside the base 11 and adjacent to the first terminal group 2. The first grounding connection piece 4 extends with at least two or more first connection terminals 41. The multiple first connection terminals 41 are used to contact the multiple first grounding terminals 21 provided in the first terminal group 2 or to make them indirectly contacted by other conductors, so that the multiple first grounding terminals 21 provided in the first terminal group 2 are interconnected. For example, the first grounding connection piece 4 extends towards the rear end of the base 11 with four first connection terminals 41, and the four first connection terminals 41 are respectively contacted and connected to the four first grounding terminals 21.

[0021] The second grounding connection piece 5 is disposed inside the base 11 and adjacent to the second terminal group 3. The second grounding connection piece 5 extends with at least two or more second connection terminals 51. The multiple second connection terminals 51 are used to contact the multiple second grounding terminals 31 provided in the second terminal group 3 or to make them indirectly contacted by other conductors, so that the multiple second grounding terminals 31 provided in the second terminal group 3 are interconnected. For example, the second grounding connection piece 5 extends towards the rear end of the base 11 with four second connection terminals 51, and the four second connection terminals 51 are respectively contacted and connected to the four second grounding terminals 31.

[0022] A second gap 15 is provided between the first grounding connecting piece 4 and the second grounding connecting piece 5 to prevent them from being electrically connected. Alternatively, the second gap 15 can be filled with, for example, an insulating material to prevent electrical conductivity. This is not a limitation; the main purpose is to allow the first terminal group 2 to contact the first grounding connecting piece 4 to form an independent electrical conducting circuit, and to allow the second terminal group 3 to contact the second grounding connecting piece 5 to form another independent electrical conducting circuit. The first grounding connecting piece 4 and the second grounding connecting piece 5 are arranged in a parallel and spaced manner inside the base 11.

[0023] In summary, the technical features of this invention are as follows: the connector 1 utilizes a second gap space 15 between the first grounding connecting piece 4 and the second grounding connecting piece 5 to prevent them from conducting to each other, thereby allowing the first terminal group 2 and the first grounding connecting piece 4 to form an independent electrical conducting circuit, and allowing the second terminal group 3 and the second grounding connecting piece 5 to form another independent electrical conducting circuit. By separating the electrical conducting circuits of the first terminal group 2 and the second terminal group 3, the impedance path of the overall connector 1 is reduced, so that when the connector 1 is used for high-frequency signal transmission, it can effectively reduce signal attenuation and improve crosstalk interference.

[0024] Please see Figure 6 , Figure 6 The figure shows a schematic diagram of the S-parameter signal test of the connector structure of the present invention and a conventional connector. The horizontal axis represents frequency, and the vertical axis represents dB value. The test compares the S-parameter values ​​of the present invention (represented by the curve NEXT_After in the figure) with those of the prior art (represented by the curve NEXT_Before in the figure). Figure 6As shown, under S-parameter testing, the connector 1 of the present invention exhibits an attenuation value of less than -40dB for high-frequency signals between 35GHz and 45GHz. In contrast, existing connectors exhibit attenuation values ​​exceeding -40dB, and even approaching -50dB, for the same high-frequency signals between 35GHz and 45GHz. This demonstrates that the present invention achieves a lower signal attenuation than existing connectors in the high-frequency range, i.e., beyond 35GHz. The test data proves that the connector 1 of the present invention can indeed achieve a lower signal attenuation than existing technologies in the high-frequency range, demonstrating excellent technical performance. Furthermore, given the current era of high-speed connectors, the design of the present invention meets the requirements of PAM4 and PCIe 5.0.

[0025] The above description is merely a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. Any simple equivalent variations and modifications made in accordance with the claims and specification of the present invention are still within the scope of the invention. Furthermore, no embodiment or claim of the present invention needs to achieve all the objectives, advantages, or features provided by the present invention. In addition, the abstract and headings are only for assisting in patent document searches and are not intended to limit the scope of protection of the present invention. Furthermore, the terms "first," "second," "third," and "fourth" mentioned in the specification or claims are only used to name elements or distinguish different embodiments or scopes, and are not used to limit the upper or lower limit of the number of elements.

Claims

1. A connector structure for improving crosstalk interference, characterized by, The connector comprises: a base, a first terminal group and a second terminal group are respectively arranged at the front end of the base, the first terminal group and the second terminal group are correspondingly spaced apart, so that a first spacing space is formed between the first terminal group and the second terminal group, the first terminal group is provided with at least two first ground terminals, and the second terminal group is provided with at least two second ground terminals; a first ground connecting piece is arranged in the base and adjacent to the first terminal group, the first ground connecting piece is provided with at least two first connecting terminals, the at least two first connecting terminals are in contact with the at least two first ground terminals or are in conductive contact with the at least two first ground terminals, so that the at least two first ground terminals of the first terminal group are in conductive connection with each other; a second ground connecting piece is arranged in the base and adjacent to the second terminal group, the second ground connecting piece is provided with at least two second connecting terminals, the at least two second connecting terminals are in contact with the at least two second ground terminals or are in conductive contact with the at least two second ground terminals, so that the at least two second ground terminals of the second terminal group are in conductive connection with each other; the first ground connecting piece and the second ground connecting piece are spaced apart and not in conductive connection with each other, so that the first terminal group is in contact with the first ground connecting piece to form an independent electrically conductive loop, and the second terminal group is in contact with the second ground connecting piece to form another independent electrically conductive loop.

2. The crosstalk-improved connector structure of claim 1, wherein The base is provided with a first tongue plate and a second tongue plate corresponding to the first terminal group and the second terminal group, the first tongue plate is provided with the first terminal group on the inner surface, and the second tongue plate is provided with the second terminal group on the inner surface, so that the first terminal group and the second terminal group are correspondingly spaced apart.

3. The crosstalk-improved connector structure of claim 1, wherein The first terminal group is provided with a plurality of first ground terminals, the first ground connecting piece is provided with a plurality of first connecting terminals extending towards the rear end of the base, and the plurality of first connecting terminals are respectively in contact with the plurality of first ground terminals.

4. The crosstalk-improved connector structure of claim 1, wherein The second terminal group is provided with a plurality of second ground terminals, the second ground connecting piece is provided with a plurality of second connecting terminals extending towards the rear end of the base, and the plurality of second connecting terminals are respectively in contact with the plurality of second ground terminals.

5. The crosstalk-improved connector structure of claim 1, wherein The first ground connecting piece and the second ground connecting piece are correspondingly arranged in the base in a spaced parallel arrangement.

6. The crosstalk-improved connector structure of claim 1, wherein The second spacing space can be filled with an insulating material to make it electrically non-conductive.