Rolled Resonant Element for Metamaterial Permeability Control
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Solution Overview
Problem
Current methods for fabricating components and metamaterials with specific electromagnetic properties struggle to achieve desired regional effective permeability and resonant frequencies, limiting their ability to effectively interact with electromagnetic energy.
Innovation Solution
A method involving determining a discontinuous conductive pattern corresponding to an unrolled state, applying a conductor to a non-conductive layer, and rolling it to form a structure with targeted regional effective permeability and resonant elements, which can exhibit anomalous electromagnetic properties such as negative permeability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional fabrication methods are used to create components with specific electromagnetic properties, then manufacturing simplicity is maintained, but the ability to achieve desired regional effective permeability and resonant frequencies is limited
Solution Approach 1:
The patent applies preliminary action by designing and applying the discontinuous conductive pattern on the planar substrate before the rolling process. The pattern is precisely configured in the unrolled state to ensure that when rolled, it forms the desired three-dimensional electromagnetic structures with specific regional effective permeability values. This preliminary configuration allows precise control of electromagnetic properties without modifying the complex rolling process itself.
Solution Approach 2:
The patent utilizes parameter changes by varying the geometry, distribution, and configuration of the discontinuous conductive pattern parameters in the unrolled state. By adjusting these parameters (such as pattern spacing, conductor width, and arrangement), the regional effective permeability of the rolled structure can be precisely controlled to achieve target electromagnetic properties without changing the fundamental fabrication approach.
2Reliability
If complex three-dimensional electromagnetic structures are fabricated using traditional methods, then desired resonant frequencies can be achieved, but manufacturing complexity and cost increase significantly
Solution Approach 1:
The patent applies dimensionality change by transitioning from three-dimensional structure fabrication to two-dimensional pattern design. The complex 3D electromagnetic structures are formed by rolling a 2D discontinuous conductive pattern, thereby solving the resonant frequency requirement through planar geometry configuration rather than complex 3D manufacturing. This dimensional reduction significantly simplifies the fabrication process while maintaining electromagnetic performance.
Solution Approach 2:
The patent utilizes flexible thin film technology by implementing the conductive pattern on a flexible non-conductive substrate that can be rolled into three-dimensional structures. This approach allows complex electromagnetic geometries to be formed from simple 2D patterns on flexible films, enabling precise resonant frequency control through the rolling process without requiring complex 3D fabrication equipment or techniques.
3Manufacturing precision
If discontinuous conductive patterns are applied before rolling, then regional effective permeability can be controlled, but the fabrication process becomes more complex
Solution Approach 1:
The patent applies preliminary action by designing and applying the discontinuous conductive pattern on the planar substrate before the rolling process. The pattern is precisely configured in the unrolled state to ensure that when rolled, it forms the desired three-dimensional electromagnetic structures with specific regional effective permeability values. This preliminary configuration allows precise control of electromagnetic properties without modifying the complex rolling process itself.
Solution Approach 2:
The patent utilizes parameter changes by varying the geometry, distribution, and configuration of the discontinuous conductive pattern parameters in the unrolled state. By adjusting these parameters (such as pattern spacing, conductor width, and arrangement), the regional effective permeability of the rolled structure can be precisely controlled to achieve target electromagnetic properties without changing the fundamental fabrication approach.
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 approach enables the creation of components and metamaterials that resonate at specific frequencies and exhibit unique electromagnetic properties, enhancing their interaction with electromagnetic energy and expanding their application in various frequency ranges.
Implementation Method 1
the rolled patterned conductor forms a first resonant element responsive to electromagnetic energy to resonate at a first resonant frequency, the first resonant element having at least one anomalous electromagnetic property in a first frequency range proximate to the first resonant frequency
Implementation Method 2
the first array of discrete electromagnetic elements is characterized by a net effective permeability, the net effective permeability being negative in a first frequency range
Data Source
AI summary
A material including a conductor may be rolled to form a resonant element.