Multi-Layer EBG Structure with Curved Conductors
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Solution Overview
Problem
Current electromagnetic band gap (EBG) structures are inadequate in terms of miniaturization, failing to achieve a compact size necessary for modern electronic devices and circuits.
Innovation Solution
The proposed solution involves a multi-layer EBG structure with curved conductors and strategically placed conductor vias to connect spiral conductors across different layers, allowing for a reduced size while maintaining effective electromagnetic wave attenuation in specific frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If conventional EBG structures are used, then electromagnetic wave attenuation is achieved, but the structure size is too large for compact electronic devices
Solution Approach 1:
The patent transitions from a planar EBG structure to a three-dimensional multi-layer configuration. Conductors are arranged across multiple layers (first layer with first conductor, second layer with second conductor, third layer with third conductors) and connected via conductor vias, creating vertical stacking that reduces footprint area while maintaining attenuation functionality through enhanced electromagnetic field interaction in three dimensions.
Solution Approach 2:
The patent implements nested conductor arrangements where conductors on different layers are positioned to overlap or interleave with each other. The third conductors on the third layer are strategically positioned relative to the first and second conductors, creating a nested configuration that maximizes electromagnetic coupling within a compact volume, thereby achieving effective attenuation in a smaller structure.
2Area of stationary object
If the EBG structure is miniaturized, then device compactness is improved, but electromagnetic wave cutoff effectiveness may be compromised
Solution Approach 1:
The patent introduces curved conductor geometries, specifically where at least one of the third conductors has a curved shape. This curvature optimizes the electromagnetic field distribution and coupling between layers, enhancing the attenuation effect. The curved configuration allows for more efficient electromagnetic interaction within a reduced linear dimension, maintaining cutoff effectiveness while minimizing the overall structure area.
Solution Approach 2:
The patent employs different conductor configurations in different regions of the structure. The third conductors are arranged with specific curvature and positioning patterns that are optimized for local electromagnetic field control. This localized optimization of conductor geometry and positioning ensures effective electromagnetic wave cutoff in critical areas while minimizing the overall structure size.
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 configuration enables a significant reduction in the size of the EBG structure while ensuring sufficient attenuation of electromagnetic waves, meeting the demands for compact electronic circuit substrates without compromising performance.
Implementation Method 1
an electromagnetic band gap structure which prevents propagation of an electromagnetic wave in a specific frequency band
Implementation Method 2
a unit structure in which an open stub formed in a region not between the two conductor plates is included
Data Source
AI summary
A structure which cuts off propagation of an electromagnetic wave at one or more frequencies is provided. The structure comprises linear third conductors arranged on a plurality of different layers different from a first layer of a substrate including the first layer where a first conductor is formed and a second layer where a second conductor is formed, and at least one fourth conductor configured to connect one end of one conductor out of the third conductors to one end of another conductor out of the third conductors. At least one of the third conductors has a curved shape.