Magneto-Dielectric Composite for Miniaturized Electromagnetic Objects
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Solution Overview
Problem
Existing materials fail to effectively combine high electrical permittivity and high magnetic permeability without destroying dielectric enhancement, leading to inefficiencies in electromagnetic wave transmission and large sizes of electromagnetic objects like antennas and waveguides.
Innovation Solution
A magneto-dielectric composite material is created by combining high permittivity and high permeability materials under low pressure, maintaining dielectric enhancement and achieving relative values within a factor of 10 of each other, allowing for miniaturization of electromagnetic objects while maintaining efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high permittivity and high permeability materials are combined under conventional pressure, then both high permittivity and high permeability are achieved, but dielectric enhancement is destroyed
Solution Approach 1:
The patent changes the pressure parameter from conventional high pressure to low pressure (less than 1.85 MPa) during material combination. This parameter change preserves dielectric enhancement while still achieving effective material bonding, resolving the contradiction between maintaining dielectric properties and enabling manufacturing.
Solution Approach 2:
The patent creates a composite material structure combining high permittivity ceramic material with high permeability ferrite material. This composite approach allows both materials to maintain their individual enhanced properties while working together to achieve the desired electromagnetic characteristics without destroying dielectric enhancement.
2Volume of moving object
If conventional materials are used for electromagnetic objects, then material properties are maintained, but physical size remains large
Solution Approach 1:
The patent uses composite magneto-dielectric materials that combine high permittivity and high permeability properties. This allows electromagnetic objects to be miniaturized by thousands of times while maintaining or improving electromagnetic efficiency, as the composite material provides enhanced electrical size relative to physical size.
Solution Approach 2:
The patent changes the material parameters by combining materials with extreme permittivity and permeability values (ranging from 100 to 500,000). This parameter change enables dramatic reduction in physical dimensions while maintaining the electrical dimensions necessary for electromagnetic function.
3Reliability
If high permittivity materials are used alone, then electrical size is increased, but impedance mismatch with air occurs
Solution Approach 1:
The patent creates a composite material where high permittivity ceramic material is combined with high permeability ferrite material in specific ratios. This composite structure achieves impedance matching with air (377 Ohms) while maintaining high electrical size, eliminating the mismatch problem that occurs with high permittivity materials alone.
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 solution enables the miniaturization of electromagnetic objects by thousands of times while increasing their electrical size, improving efficiency to over 70% and enabling new applications such as wireless power transmission and advanced communication systems.
Implementation Method 1
maintaining a dielectric enhancement between the first material and the second material by combining the first material and the second material under a low pressure
Data Source
AI summary
An apparatus to emit and/or receive electromagnetic waves, the apparatus including a first material having a high electrical permittivity, and a second material having a high magnetic permeability, wherein the first material contacts the second material while maintaining a dielectric enhancement between the first material and the second material by combining the first material and the second material under a low pressure.