Three-End Connector Eliminates Crosstalk in Backplane Systems
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing connection structures in communications devices suffer from crosstalk and increased transmission loss due to the use of transition connectors and internal cabling, which hinder efficient signal transmission between boards and the backplane.
Innovation Solution
A connector design with three connecting ends is introduced, where one end connects directly to the backplane, another end connects to a high-speed transmission cable, and the third end secures the connector to the target board, allowing signals to bypass internal cabling and transition connectors, thereby reducing transmission loss and crosstalk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a transition connector is added inside the board to connect high-speed cable to internal cabling, then the high-speed cable can be secured to the board, but a crosstalk phenomenon occurs when electrical signal is transmitted on neighboring signal lines inside the transition connector
Solution Approach 1:
The patent extracts and removes the transition connector from the signal path. Instead of routing signals through the transition connector's internal cabling, the design allows the high-speed cable to connect directly to the backplane connector, eliminating the source of crosstalk while preserving the ability to secure the high-speed cable to the board through alternative mounting structures.
2Device complexity
If internal cabling is used to transmit electrical signal from chip to backplane connector, then the connection structure is simple, but transmission loss increases
Solution Approach 1:
The patent introduces a high-speed cable as an intermediary transmission medium between the chip and the backplane connector. This high-speed cable has superior transmission characteristics with lower loss compared to traditional internal PCB cabling, while the connector design provides the necessary interface and securing mechanisms to maintain a practical connection structure.
3Loss of energy
If high-speed cable is used to directly connect chip to backplane connector, then transmission loss is reduced, but additional components (transition connector and cable connectors) increase device complexity
Solution Approach 1:
The patent merges the functions of the transition connector and cable connectors into a single integrated backplane connector design. The backplane connector directly accepts the high-speed cable and provides the necessary electrical connection to the board, eliminating the need for separate transition connectors and reducing the total component count while maintaining low transmission loss.
Data Source
AI summary
A connector (100) and a communications device is disclosed. The connector includes a connector body (41) and three connecting ends disposed on the connector body. M signal interfaces (51a) inside a first connecting end (42) are in communication with M signal interfaces (51b) inside a second connecting end (43) in a one-to-one correspondence. The first connecting end is connected to a backplane connector (32) on a backplane (31). The second connecting end is connected to one end (45a) of a transmission cable (45), and the other end (45b) of the transmission cable is connected to a communications component (46) on a target board (33a). The backplane is configured to implement communication between X boards (33), and the target board is any one of X boards, where M≥1 and X≥1. A third connecting end (44) is configured to secure the connector body to the target board.