Split Ring Resonator Antenna for Multi-Band Resonance

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Solution Overview

Problem

Existing antennas are limited to resonating at a single operating frequency, failing to function effectively across multiple bands.

Innovation Solution

The antenna design incorporates a split ring resonator structure with multiple radiation elements, forming an LC resonator circuit and open or short stubs, allowing it to resonate at multiple operating frequencies.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a traditional single-frequency antenna structure is used, then the antenna can be designed with simple structure, but it can only resonate at one operating frequency

Engineering Contradiction:
Improveoperating frequency rangeVSAvoidantenna structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The antenna is divided into multiple independent resonant elements: a split ring resonator and multiple radiation elements (first, second, and third radiation elements). Each element can resonate at different frequencies, allowing the antenna to operate across multiple bands simultaneously without requiring a completely different structure for each frequency.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The antenna structure is designed to perform multiple functions through a single integrated design. The split ring resonator and radiation elements work together to provide resonance at multiple operating frequencies, making the antenna universally applicable across different frequency bands while maintaining a unified structural framework.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple radiation elements are added to achieve multi-frequency resonance, then the antenna can resonate at multiple operating frequencies, but the structure becomes more complex

Engineering Contradiction:
Improvemulti-frequency operationVSAvoidnumber of radiation elements
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Multiple radiation elements are merged into a single integrated antenna structure that shares common components and spatial arrangement. The first, second, and third radiation elements are positioned relative to the split ring resonator in a coordinated manner, allowing them to function together as a unified multi-frequency system rather than separate antennas.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The antenna structure utilizes spatial arrangement and geometric configuration to achieve frequency diversity. By positioning radiation elements at different locations and orientations around the split ring resonator, the design achieves multi-frequency operation through dimensional placement rather than through complex circuitry or additional active components.

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

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

This design enables the antenna to operate at multiple frequencies, enhancing its functionality across various bands by integrating radiation elements with the split ring resonator and LC resonator circuit.

Implementation Method 1

The antenna has a plurality of radiation elements which extend from the main portion forming the split ring. Accordingly, the antenna of the present invention can resonate at both of operating frequencies of the split ring resonator and the radiation elements.

Methodology Applied
Scientific EffectLC resonance: Resonance

Implementation Method 2

The antenna design incorporates a split ring resonator structure with multiple radiation elements, forming an LC resonator circuit and open or short stubs, allowing it to resonate at multiple operating frequencies.

Methodology Applied
Scientific EffectElectromagnetic resonance: Resonance

Data Source

PatentEP3817139B1antenna
Publication Date: 2024.08.21 JAPAN AVIATION ELECTRONICS IND LTD
  • EP3817139B1 patent drawingFigure 1~2
  • EP3817139B1 patent drawingFigure 3~4
  • EP3817139B1 patent drawingFigure 5~6

AI summary

An antenna comprises a split ring resonator. The antenna has a main portion, a feeding portion and at least one radiation element. The main portion forms a split ring. The feeding portion is provided on the main portion. The radiation element extends from the main portion.