High Frequency Micro Connector Crosstalk Reduction
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Solution Overview
Problem
USB 3.0 connectors face issues with high frequency data transmission due to crosstalk between signal transmission terminals, particularly in Micro-B type connectors designed for portable devices, which have a larger crosstalk problem due to their compact terminal arrangement, and this is exacerbated by the need for compatibility with USB 2.0 protocol.
Innovation Solution
A high frequency micro connector design featuring pairs of signal transmission terminals with transverse extension sections that protrude reversely and oppositely, increasing the distance between soldering sections to prevent crosstalk, while maintaining compatibility with USB 2.0 and 3.0 protocols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If USB 3.0 connector uses two rows of terminals for implementing USB 2.0 or 3.0 protocol, then compatibility with both protocols is achieved, but connector size and structural complexity increase
Solution Approach 1:
The connector is divided into two separate tongues: a first tongue for USB 2.0 protocol terminals and a second tongue for USB 3.0 high frequency signal transmission terminals. This segmentation allows each tongue to be optimized independently, reducing overall structural complexity while maintaining dual protocol compatibility.
Solution Approach 2:
The patent transitions from a compact planar arrangement to a three-dimensional configuration with two protruding tongues extending from the base. This dimensional change allows better spatial separation of terminals, reducing crosstalk while maintaining compatibility with both USB 2.0 and 3.0 protocols.
2Volume of moving object
If Micro-B type USB 3.0 connector uses compact terminal arrangement for portable devices, then device size is reduced, but crosstalk between terminals increases
Solution Approach 1:
By separating high frequency signal terminals onto a dedicated second tongue that protrudes from the base, the patent creates physical distance between adjacent terminals of different pairs. This segmentation reduces capacitive coupling and crosstalk while maintaining a compact overall connector size suitable for portable devices.
Solution Approach 2:
The second tongue for high frequency terminals has an asymmetric protruding structure that optimizes the spacing between terminals. The transverse extension sections of adjacent terminals protrude in opposite directions, creating unequal spacing patterns that minimize crosstalk while maintaining compact dimensions.
3Volume of moving object
If signal transmission terminals are arranged closely for compact connector design, then connector size is reduced, but data transmission reliability decreases due to crosstalk
Solution Approach 1:
The connector structure segments high frequency signal terminals onto a separate protruding tongue, physically isolating them from other terminals. This segmentation maintains compact overall size while ensuring reliable high frequency data transmission by minimizing interference between adjacent signal pairs.
Data Source
AI summary
A high frequency micro connector has an insulating housing, multiple first terminals and multiple terminals. The insulating housing has a base, a first tongue and a second tongue. The first and second terminals are mounted through the base respectively on the first and second tongue. The second tongue includes pairs of high frequency signal transmission terminals each having a transverse extension section and a soldering section formed on the transverse extension section. The transverse extension sections of each pair protrude reversely and oppositely to increase the distance between the soldering sections therefore to prevent crosstalk between the high frequency signal transmission terminals.