Artificial Electromagnetic Material With Low Dielectric Constant
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Solution Overview
Problem
Conventional materials exhibit high dielectric constants that do not meet the requirements for low dielectric constant needs in certain frequency ranges, particularly in large-scale integrated circuits.
Innovation Solution
An artificial electromagnetic material comprising a substrate with pairs of artificial microstructures, including I-shaped and split ring structures made from metal wires, which are designed to gradually increase the dielectric constant from zero in specific frequency ranges, thereby providing a low dielectric constant in those ranges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional materials are used, then the material provides stable electromagnetic properties, but the dielectric constant is high and does not meet low dielectric constant requirements in certain frequency ranges
Solution Approach 1:
The patent uses composite materials by combining a substrate with specifically designed artificial microstructures (I-shaped and split ring structures) to create a metamaterial with tailored electromagnetic properties. This composite structure enables the material to achieve low dielectric constant in specific frequency ranges while maintaining overall stability, resolving the contradiction between conventional material reliability and dielectric constant requirements.
Solution Approach 2:
The patent applies parameter changes by modifying the geometric parameters of the artificial microstructures (such as dimensions, shapes, and arrangements) to control the electromagnetic response. By adjusting these parameters, the dielectric constant can be tuned to be low in specific frequency ranges while maintaining stable electromagnetic properties overall, thus resolving the technical contradiction.
2Quantity of substance
If artificial microstructures are designed to achieve low dielectric constant in specific frequency ranges, then the dielectric constant requirement is met, but the structure complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the artificial microstructure into distinct functional components (I-shaped structures and split ring structures) that are arranged in a periodic array on the substrate. This segmentation allows each component to contribute specifically to the electromagnetic response, achieving low dielectric constant in target frequency ranges while maintaining manageable structural complexity through modular design.
Solution Approach 2:
The patent uses local quality by designing different artificial microstructures with specific geometries (I-shaped and split ring) at different locations or orientations to achieve the desired electromagnetic properties. The local geometric characteristics of each microstructure type are optimized to contribute to the overall low dielectric constant performance in specific frequency ranges, balancing functionality with structural complexity.
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 material achieves a low dielectric constant in specific frequency ranges, reducing loss and meeting application requirements, with the ability to adjust frequency ranges by modifying the dimensions of the microstructures.
Implementation Method 1
the dielectric constant of the materials gradually increases from zero in a certain frequency ranges. Therefore, in the certain frequency ranges it has a low dielectric constant
Data Source
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AI summary
An artificial electromagnetic material includes at least one material sheet. Each material sheet includes a substrate and a plurality of artificial microstructures attached to the substrate. Each substrate is virtually divided into multiple of substrate units arranged into an array. A pair of artificial microstructures is attached to each substrate. The pair of artificial microstructures includes a first artificial microstructure and a second artificial microstructure with different shapes. The dielectric constant of artificial electromagnetic materials gradually increases from zero in a certain frequency range, therefore the material has a low dielectric constant in the certain frequency range and can meet some needs of special situation.