Periodic Housing Structures for Cross-Talk Reduction
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Solution Overview
Problem
Conventional mechanical connectors in electronic systems cause discontinuities, wear out over time, and are susceptible to mechanical jostling, leading to cross-talk interference between communication channels.
Innovation Solution
The use of electromagnetic radiation blocking structures within the housing of electronic devices, formed from a periodic arrangement of different materials, such as plastic and foam, to reduce cross-talk by filtering electromagnetic radiation in the 50 GHz to 70 GHz frequency range, thereby minimizing signal leakage between transmitter and receiver IC packages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mechanical connectors are used to connect PCBs, then electrical connection is established, but cross-talk interference occurs and reliability deteriorates due to wear and mechanical jostling
Solution Approach 1:
The patent replaces mechanical connectors with electromagnetic radiation blocking structures made of foam or plastic materials. These structures block electromagnetic signals mechanically rather than using electrical contacts, eliminating wear, alignment issues, and mechanical jostling problems while reducing cross-talk interference between communication channels.
Solution Approach 2:
The patent introduces foam or plastic blocking structures as intermediary elements between communication channels. These intermediaries physically separate and electrically isolate adjacent channels, preventing signal leakage and cross-talk without requiring direct mechanical contact between connectors.
2Object-affected harmful factors
If absorber structures are used to isolate communication channels, then cross-talk is reduced, but material volume increases
Solution Approach 1:
The patent uses foam materials with porous structures to block electromagnetic radiation. The porous nature of foam provides effective electromagnetic shielding with much lower material density and volume compared to solid absorber structures, reducing overall housing material volume while maintaining cross-talk reduction effectiveness.
Solution Approach 2:
The patent employs composite construction by combining foam or plastic blocking structures with the housing material. This composite approach achieves effective electromagnetic isolation using lightweight materials that require less volume than traditional solid absorber structures.
3Object-affected harmful factors
If distance is increased to isolate communication channels, then cross-talk is reduced, but device size increases
Solution Approach 1:
The patent places blocking structures made of foam or plastic materials in the gaps between adjacent communication channels. These intermediary structures provide effective electromagnetic isolation without requiring increased distance between channels, maintaining compact device footprint while reducing cross-talk interference.
4Ease of manufacture
If conventional mechanical connectors are used, then electrical connection is established, but manufacturing precision requirements increase due to alignment needs
Solution Approach 1:
The patent replaces precision mechanical connectors with foam or plastic blocking structures that are molded directly into the housing. This eliminates the need for precise alignment and assembly of mechanical components, significantly easing manufacturing requirements while maintaining effective electromagnetic isolation.
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
This solution significantly reduces cross-talk by more than 40% over a 5 GHz bandwidth, improving communication efficiency and reducing the material volume required compared to systems using distance or absorber structures.
Implementation Method 1
the arrangement of structures reduce propagation of electromagnetic radiation propagating through the second region
Implementation Method 2
A wide range of materials can be selected to be incorporated into the devices to reduce cross-talk, allowing flexible implementation of the methods and devices disclosed herein
Data Source
AI summary
Systems and apparatuses for electromagnetic communications are provided. One of the apparatuses includes a housing portion for an electronic device, wherein the housing portion comprises: a first region formed from a first material; and a second region comprising an arrangement of structures formed from the first material and a second material, wherein the arrangement of structures reduce propagation of electromagnetic radiation propagating through the second region.