Connector Ground Terminal Segmentation for Crosstalk Suppression
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional connectors for coaxial cables suffer from impedance mismatch and crosstalk due to the design of ground terminals, which often lead to interferences between contacting portions.
Innovation Solution
The connector design features ground terminals with multiple contacting portions, including inner and outer ones that extend inwards and outwards from the cylindrical main body, positioned to avoid interferences and encompass the signal terminal, allowing for improved impedance matching and reduced crosstalk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the number of contacting portions for the ground terminal is increased to encompass the signal terminal, then impedance mismatch and crosstalk are suppressed, but interferences between contacting portions occur
Solution Approach 1:
The ground terminal's contacting portions are segmented into inner contacting portions (extending toward the inside of the cylindrical main body) and outer contacting portions (extending toward the outside). This segmentation allows the ground terminal to encompass the signal terminal effectively while preventing interference between different contacting portions, as each segment is directed toward different spatial zones.
2Reliability
If all contacting portions face toward the inside of the cylindrical ground terminal, then the signal terminal is encompassed, but interferences occur between ground terminal contacting portions and signal terminal contacting portion
Solution Approach 1:
Different portions of the ground terminal have different orientations: inner contacting portions extend toward the inside while outer contacting portions extend toward the outside. This creates local quality differentiation where the inner portions face the signal terminal to suppress crosstalk, while outer portions face away to avoid interference with the signal terminal's contacting portion.
3Object-generated harmful factors
If all contacting portions face to the outside of the cylindrical ground terminal, then interference between ground terminals is reduced, but the signal terminal is not effectively encompassed
Solution Approach 1:
The ground terminal is segmented into inner and outer contacting portions with different orientations. The inner contacting portions extend toward the inside to encompass and suppress crosstalk from the signal terminal, while the outer contacting portions extend toward the outside to minimize interference with adjacent ground terminals, thus satisfying both requirements simultaneously.
Data Source
AI summary
To provide a connector wherein ground terminals can be designed easily, which not only suppresses the occurrence of impedance mismatch and crosstalk, but which does not lead to interferences between contacting portions. A ground terminal for a connector has a cylindrical main body. A plurality of contacting portions, for contacting a circuit board, are formed on the bottom edge of the cylindrical main body. The ground terminal has, as contacting portions, inner contacting portions and outer contacting portions. The inner contacting portions extend toward the inside of the cylindrical main body and in the downward direction, and the outer contacting portions extend toward the inside of the cylindrical main body and in the downward direction.