Split-Ring Resonator Conductor with Spatially Continuous Opening

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Solution Overview

Problem

Split-ring resonators are difficult to arrange at locations other than the edge of a conductor due to short-circuiting issues when placed elsewhere, which hampers their functionality as an antenna.

Innovation Solution

A conductor with a split-ring resonator and an opening where the split and opening are spatially continuous, allowing for efficient current flow and RF signal radiation, and a control unit to manage the opening's size for frequency control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a split-ring resonator is placed at a location other than the edge of a conductor, then the antenna design flexibility and radiation efficiency are improved, but the split-ring resonator cannot be properly arranged due to short-circuiting issues

Engineering Contradiction:
Improveantenna design flexibilityVSAvoidarrangement feasibility
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The conductor is divided into multiple segments by introducing openings, which electrically isolates different regions. This segmentation prevents short-circuiting and allows split-ring resonators to be placed at non-edge locations without electrical interference, thereby improving arrangement feasibility while maintaining design flexibility

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Openings are introduced as intermediary elements between the split-ring resonator and the conductor body. These openings act as electrical insulators that prevent short-circuiting, enabling the split-ring resonator to function properly at non-edge locations without direct electrical contact with the conductor

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If the opening size is made adjustable, then the frequency characteristics can be controlled, but the device complexity increases

Engineering Contradiction:
Improvefrequency control capabilityVSAvoidcontrol mechanism complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The opening size is made dynamically adjustable rather than fixed, allowing the conductor's electrical characteristics to be changed in real-time. This dynamic adjustment capability enables frequency control of the split-ring resonator without requiring multiple different conductor designs, thus achieving adaptability with moderate complexity increase

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The physical parameter of opening size is changed to control the electrical frequency characteristics of the split-ring resonator. By adjusting the opening dimension, the resonant frequency can be tuned, providing frequency control capability through a simple geometric parameter change rather than complex circuit modifications

Inventive Principle:
Principle #35Parameter changes

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 placement of split-ring resonators at non-edge locations on conductors, improving antenna performance by controlling frequency characteristics and reducing the occupied area, thus enhancing radiation efficiency and flexibility in device design.

Implementation Method 1

an antenna formed of a split-ring resonator is known as a small antenna used in a communication device

Methodology Applied
Scientific EffectElectromagnetic resonance: Resonance

Data Source

PatentEP3780278B1Conductor, antenna, and communication device
Publication Date: 2023.05.03 JAPAN AVIATION ELECTRONICS IND LTD
  • EP3780278B1 patent drawingFigure 1~2
  • EP3780278B1 patent drawingFigure 3~4
  • EP3780278B1 patent drawingFigure 5

AI summary

Provided is a conductor, for example, equipped with a split-ring resonator, and an opening, wherein a split in the split-ring resonator and the opening are spatially continuous.