Multifrequency Resonator Array for Contactless Impedance Matching
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Solution Overview
Problem
Existing metamaterials composed of regularly spaced resonators connected by electrical connections are difficult to produce and adjust, lacking robustness and versatility in applications, particularly in electromagnetic field interactions and impedance matching.
Innovation Solution
A device comprising a plurality of passive multifrequency electromagnetic resonators with galvanically isolated transmission lines, arranged without electrical contact, forming a spatially periodic structure that interacts through inductive coupling to produce a collective reaction with incident electromagnetic fields, allowing for flexible application in filtering, amplifying, or deflecting specific frequencies, and modifying impedance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If resonators are connected by electrical connections to form metamaterials, then electromagnetic field interaction is achieved, but manufacturing complexity and adjustment difficulty increase
Solution Approach 1:
The patent removes the electrical connections between resonators, extracting the problematic element that caused manufacturing complexity while preserving the electromagnetic interaction through inductive coupling alone. This allows resonators to be independently manufactured and positioned without requiring precise electrical interconnections.
Solution Approach 2:
The patent introduces magnetic flux as an intermediary mechanism that mediates interaction between galvanically isolated resonators. The magnetic field serves as the coupling medium, enabling electromagnetic interaction without direct electrical contact, thus simplifying manufacturing while maintaining functionality.
2Measurement precision
If single-frequency resonators are used in metamaterials, then specific frequency interaction is achieved, but versatility and adaptability are reduced
Solution Approach 1:
The patent designs resonators with multiple resonant frequencies, enabling each resonator to interact with multiple frequency components of incident electromagnetic fields. This multi-frequency capability provides both frequency selectivity and broad adaptability, allowing the same resonator structure to serve multiple application purposes.
Solution Approach 2:
The patent employs resonators whose resonant frequencies can be adjusted by changing geometric parameters such as track dimensions, split sizes, and configuration. This parameter adjustability allows the same basic structure to be tuned for different frequency ranges and applications, enhancing versatility while maintaining precise frequency interaction.
3Reliability
If resonators are placed close together to form arrays, then inductive coupling and collective reaction are achieved, but electrical contact may occur
Solution Approach 1:
The patent removes the requirement for electrical insulation between adjacent resonators by eliminating electrical connections entirely. Resonators can be placed closer together without risk of electrical contact, as interaction occurs through magnetic flux rather than direct electrical contact, reducing spacing constraints.
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 the creation of a robust and versatile metamaterial that can effectively interact with electromagnetic fields, providing improved impedance matching, filtering, and amplification capabilities over a wide frequency range, while allowing for contactless characterization of media, enhancing detection and imaging methods.
Implementation Method 1
They are arranged without electrical contact between them so as to be sufficiently close to one another to form an array of resonators which can interact with one another through inductive coupling
Implementation Method 2
a plurality of passive multifrequency electromagnetic resonators, i.e. each having a plurality of given resonance frequencies
Data Source
AI summary
An array device composed of individual multifrequency passive resonators which are not electrically connected to one another. These resonators are formed by interrupted transmission lines that close back in on themselves and which are nested within one another, each formed of a group of two or more parallel tracks, and are paired with one another contactlessly around one or more dielectric layers of a substrate. Such an array is used in particular to modify an incident magnetic or electromagnetic field, and/or to carry out impedance matching by being placed between an incident field and a body or object to be treated or observed. It is also used to improve a method for contactlessly characterizing a medium to be investigated, via inductive coupling of one or more of the resonators of said array to a probe connected to a reader.