Transmission Line Cable Stacked Ground Conductors
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Solution Overview
Problem
Existing transmission line cables experience unnecessary radiation due to discontinuous portions between connected ground conductor patterns, which affect signal integrity and stability.
Innovation Solution
The design includes a transmission line cable with stacked multilayer insulators and conductor patterns where the ground conductor patterns are continuously connected, and the signal conductor patterns are positioned between the ground conductor patterns to ensure electrical connectivity and reduce radiation, using conductive joining materials to maintain stability and reduce thickness at connecting portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ground conductor patterns are connected between transmission lines, then electrical connectivity is improved, but the structure becomes more complex and thickness increases
Solution Approach 1:
The patent merges the ground conductor patterns of the first and second transmission lines by stacking them in the thickness direction and making them overlap in the planar direction. This merging approach achieves continuous ground connectivity without requiring additional complex connecting structures, thereby improving electrical connectivity while avoiding increased structural complexity.
Solution Approach 2:
The patent transitions from a planar connection approach to a three-dimensional stacking approach. By arranging ground conductor patterns in the thickness direction (vertical dimension) rather than only in the planar direction, the patent achieves continuous ground connectivity without increasing planar dimensions or requiring complex lateral connection structures.
2Object-generated harmful factors
If ground conductor patterns are made continuous, then radiation is reduced, but manufacturing precision requirements increase
Solution Approach 1:
The patent combines multiple ground conductor patterns from different transmission lines into a continuous ground structure through stacking and overlapping. This merging creates an extended ground plane that effectively reduces radiation by providing continuous reference potential, while the modular stacking approach allows for standardized manufacturing processes.
Solution Approach 2:
The patent applies different functional qualities to different regions of the ground conductor patterns. The overlapping regions serve as connection zones that tolerate certain misalignments, while the non-overlapping regions maintain their individual transmission line functions. This local differentiation allows the system to achieve continuous ground connectivity without requiring perfect alignment throughout the entire structure.
Data Source
AI summary
A first signal conductor pattern, a first ground conductor pattern, and a second ground conductor pattern define a first transmission line with a strip line structure. A second signal conductor pattern, a third ground conductor pattern, and a fourth ground conductor pattern define a second transmission line with a strip line structure. A first connecting portion at an end of the first transmission line and a second connecting portion at an end of the second transmission line are stacked together so that the first ground conductor pattern is electrically connected to the third ground conductor pattern, the second ground conductor pattern is electrically connected to the fourth ground conductor pattern, and the first signal conductor pattern is electrically connected to the second signal conductor pattern.