Orthogonal S-Shaped Split Ring Resonators for Polarization-Agnostic Metamaterials

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Solution Overview

Problem

Current metamaterials with a negative index of refraction can only propagate incident electromagnetic waves with a specific polarization, limiting their functionality.

Innovation Solution

A metamaterial design featuring S-shaped split ring resonator elements, manufactured via 3-D printing, where the first and second S-shaped split ring resonators are orthogonal to each other, allowing electromagnetic waves of any polarization to resonate and propagate, with the size of the elements scalable to achieve a desired resonant frequency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If current metamaterials are designed with specific polarization requirements, then they can achieve negative index of refraction, but they cannot propagate electromagnetic waves with any polarization direction

Engineering Contradiction:
Improvepolarization acceptanceVSAvoidnegative index of refraction
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent introduces a third dimension by positioning split ring resonators orthogonally to each other in 3D space. The first split ring resonator lies in the x-y plane while the second split ring resonator lies in the x-z plane, creating orthogonal orientations that enable the metamaterial to respond to electromagnetic waves of any polarization direction while maintaining negative index of refraction

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent combines two different types of split ring resonators with orthogonal orientations into a single metamaterial structure. This composite arrangement of resonators with different orientations creates a material that can handle multiple polarization states simultaneously, achieving both versatility in polarization acceptance and reliability in negative index of refraction

Inventive Principle:
Principle #40Composite materials

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

Enables the propagation of electromagnetic waves with any polarization direction, achieving a negative index of refraction and minimizing losses at the connection point, thus enhancing the metamaterial's operational flexibility and efficiency.

Implementation Method 1

The first resonator element and the second resonator element can be any type of resonator element known in the art, including, but not limited to, split ring resonator (SRR) elements, S-shaped resonator elements, and C-shaped resonator elements

Methodology Applied
Scientific EffectResonance: Resonance

Implementation Method 2

Current metamaterials can have a negative index of refraction at its resonant frequency

Methodology Applied
Scientific EffectNegative refraction: Negative Refraction

Data Source

PatentUS10158160B2Devices and method for metamaterials
Publication Date: 2018.12.18 THE MITRE CORPORATION
  • US10158160B2 patent drawing
  • US10158160B2 patent drawing
  • US10158160B2 patent drawing

AI summary

A metamaterial for receiving electromagnetic waves having any polarization is provided. The metamaterial allows for receipt and/or propagation of electromagnetic waves at a resonant frequency of the metamaterial.