3D Spiral Wave Control Medium for Compact Wideband Metamaterials
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Solution Overview
Problem
Existing metamaterials face challenges in simultaneously reducing size and increasing bandwidth, limiting their practical application in wave control devices.
Innovation Solution
A wave control medium comprising at least two three-dimensional microstructures, each formed from materials like metals, dielectric materials, or superconductors, configured as capacitors and inductors, which can be arranged in spiral, multilayer, or entangled structures to achieve a compact size and broad frequency response.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the metamaterial structure is enlarged to handle long wavelength waves, then the wave control capability is improved, but the footprint area increases
Solution Approach 1:
The patent embeds multiple resonator structures within each other, with inner resonators containing outer resonators. This nested configuration allows the metamaterial to maintain effective wave control for long wavelengths while significantly reducing the overall footprint area, as the nested structures occupy shared spatial volume rather than requiring proportional area expansion.
Solution Approach 2:
The patent transitions from two-dimensional planar resonator arrangements to three-dimensional nested spherical resonator structures. By utilizing the third dimension (radial depth) for nesting multiple resonator layers, the design achieves enhanced wave control capability without proportional increases in footprint area, effectively decoupling performance from planar size.
2Power
If the metamaterial operates at resonance frequency, then the response intensity is maximized, but the bandwidth becomes narrow
Solution Approach 1:
The patent divides the resonator system into multiple distinct resonator layers with different resonance frequencies. Each layer is tuned to a specific frequency, and the combination of these segmented resonators creates a composite response that maintains high intensity at individual resonance peaks while collectively covering a broader frequency bandwidth.
Solution Approach 2:
Different resonator layers are assigned different local properties, specifically different resonance frequencies and quality factors. This local differentiation allows each layer to optimize for its specific frequency range, and the aggregate system achieves both high response intensity at resonant frequencies and extended overall bandwidth through the superposition of multiple tuned responses.
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 solution enables a metamaterial with reduced size and increased bandwidth, allowing for efficient wave control and absorption/shielding across a wide range of frequencies, suitable for various applications including electromagnetic waves and sound waves.
Implementation Method 1
the wave control medium having functions of a capacitor and an inductor
Implementation Method 2
the wave control medium having functions of a capacitor and an inductor
Implementation Method 3
the operation principle of the metamaterial is based on a resonance phenomenon due to an interaction between a wave and a structure
Data Source
AI summary
Provided is a wave control medium capable of controlling waves while decreasing the size of a metamaterial or the like and increasing the bandwidth of the metamaterial or the like.A wave control medium 10 is formed by combining at least two among a coil 11 and a coil 12 which are three-dimensional microstructures formed into a spiral structure, the coil 11 and the coil 12 including any one of a metal, a dielectric material, a magnetic material, a semiconductor, and a superconductor, or a material selected from a plurality of combinations of these materials, and having functions of a capacitor and an inductor. The coil 11 and the coil 12 form a capacitor between the lateral face of the coil 11 and the lateral face of the coil 12 facing each other, and form an inductor by forming a three-dimensional multiple resonance structure by the coil 11 and the coil 12 having a spiral structure.