Wireless Energy Transmission Structure Using Meta Material
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Solution Overview
Problem
Existing wireless energy transmission systems face challenges with energy supply and transmission efficiency due to low power, short transmission distance, and limited operable time, particularly with electromagnetic induction methods, and require large structures for magnetic resonance technology to achieve high quality factors.
Innovation Solution
A wireless energy transmission structure using a ring-type printed circuit board with meta material structures and a variable capacitor, where meta cells with spiral or split ring designs surround the circuit board to enhance energy transfer efficiency and reduce size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If magnetic resonance technology uses large-sized disk section and wire section to increase electric field and magnetic field intensity, then quality factor is improved, but device size becomes too large for practical adoption
Solution Approach 1:
The patent changes the physical parameters of the system by introducing meta-material structures with negative refractive index and using variable capacitors to adjust resonance frequency. These parameter changes enable achieving high quality factor with smaller device dimensions, resolving the contradiction between reliability and device size.
Solution Approach 2:
The patent employs composite meta-material structures combining conductive plates, dielectric materials, and meta-material elements. This composite approach creates enhanced electromagnetic field confinement and resonance characteristics, allowing high quality factor to be achieved in a compact form factor.
2Ease of operation
If electromagnetic induction method is used for wireless energy transmission, then energy can be transmitted wirelessly, but transmission efficiency deteriorates rapidly when coupling coefficient is low or device deviates from predetermined location
Solution Approach 1:
The patent introduces variable capacitors that can dynamically adjust the resonance frequency of the system. This dynamic adjustment capability allows the system to maintain optimal resonance conditions and high transmission efficiency even when the coupling coefficient changes or the device position deviates from the predetermined location.
Solution Approach 2:
The patent utilizes magnetic resonance at a specific resonance frequency to enhance energy transmission. By operating at resonance, the system achieves stronger coupling between transmitter and receiver, improving transmission efficiency and reducing energy loss compared to conventional electromagnetic induction methods.
3Use of energy by moving object
If conventional wireless energy transmission structures are used, then energy can be transmitted, but transmission distance is limited and operable time is restricted due to low power
Solution Approach 1:
The patent changes key parameters including resonance frequency adjustment via variable capacitors and utilizes meta-material properties to enhance field confinement. These parameter changes enable extended transmission distance and improved power efficiency, overcoming the limitations of conventional wireless energy transmission structures.
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 configuration improves transmission efficiency and distance while minimizing the structure's size, achieving higher resonance Q characteristics and reducing the resonance frequency, thus enhancing the overall performance of wireless energy transfer.
Implementation Method 1
a magnetic resonance technology is being developed, which transmits power in the energy form by concentrating energy at a predetermined resonance frequency by an inductor and a capacitor
Implementation Method 2
an inductance coupling technology by an electromagnetic wave called an electromagnetic induction method is used in an electromotive toothbrush, a notebook, a workman, etc.
Implementation Method 3
a disk section constituted by two conductive plates and a dielectric inserted between the two conductive plates
Implementation Method 4
a ring-type wire section connected to both ends of the disk part
Data Source
AI summary
Disclosed herein is a wireless energy transmission structure, which includes a printed circuit board, a disk section, and a wire section. The printed circuit board is formed in a ring type, the disk section is constituted by a first conductive plate and a second conductive plate formed on portions of the printed circuit board corresponding to each other to be spaced by a predetermined gap and a dielectric material inserted between the first conductive plate and the second conductive plate, and the wire section is constituted by a plurality of meta cells having a meta material structure, which are repetitively formed to surround the exterior and interior of the printed circuit board and a transmission line connected to each of the first conductive plate and the second conductive plate and surround the plurality of meta cells.