Low-Dielectric Wire Coating for High-Frequency Spillover Loss
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Solution Overview
Problem
Conventional plastic materials used for insulating wires and connectors cause significant spillover loss during the transmission of high frequency signals, necessitating the development of novel materials to prevent this issue.
Innovation Solution
A method involving the use of a functional dielectric layer formed by mixing nano-scale ceramic materials with flake structures and non-polar polymers, resulting in a layer with no gaps or micropores and a dielectric constant of less than or equal to 2.5, which is applied to cover various types of wires and connectors to minimize signal loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional plastic materials are used to cover wires and connectors for insulation, then insulation and protection are achieved, but spillover loss increases during high frequency signal transmission
Solution Approach 1:
The patent changes the dielectric constant parameter of the coating material from conventional plastic materials to functional dielectric materials with dielectric constant ≤2.5. This parameter change reduces the material's ability to store electrical energy, thereby reducing spillover loss during high frequency signal transmission while maintaining insulation performance
Solution Approach 2:
The patent uses composite materials consisting of functional dielectric materials (such as ceramic particles) dispersed in a polymer matrix. This composite structure combines the insulation properties of polymers with the low dielectric constant properties of ceramic materials, achieving both good insulation and reduced spillover loss
2Loss of energy
If a functional dielectric layer with low dielectric constant is formed, then spillover loss is reduced, but manufacturing precision requirements increase to ensure no gaps or micropores
Solution Approach 1:
The patent performs preliminary actions by thoroughly mixing the functional dielectric materials with the polymer matrix before coating, and by optimizing the coating process parameters in advance. This ensures that the final layer is free from gaps and micropores, meeting the high manufacturing precision requirements without requiring excessive post-processing
Solution Approach 2:
The patent ensures that the functional dielectric layer has uniform local quality throughout, with consistent material distribution and no localized defects such as gaps or micropores. This uniformity is achieved through proper material mixing and controlled coating processes, ensuring consistent performance across the entire layer
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The method effectively reduces spillover loss during the transmission of high frequency signals, particularly in the range of 3.5 GHz to 20 GHz, by creating a high-insulating film with a thickness of at least 6 μm, enhancing the duty ratio and performance beyond existing techniques.
Implementation Method 1
forming a functional dielectric layer with no gap, no micropore, and a dielectric constant of less than or equal to 2.5
Implementation Method 2
high insulating ceramic materials having flake structure in nano-scale
Data Source
AI summary
A method of manufacturing wire covering materials for prevention of spillover loss during transmission of high frequency signals is revealed. First mixing high insulating ceramic materials having flake structure with polymers and then forming a functional dielectric layer with no gap, no micropore, and a dielectric constant of less than or equal to 2.5 by a manufacturing process. Thereby the dielectric layer is used to cover various types of wires, or connector plugs and sockets for prevention of spillover loss during transmission of high frequency signals.