Dual-Sided Antenna Device for Wireless Charging
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Solution Overview
Problem
Existing antenna devices require lengthy etching times and complex manufacturing processes, limiting productivity and charging efficiency due to the inability to form connected antenna patterns on both sides of an insulating substrate, making them unsuitable for wireless charging applications.
Innovation Solution
An antenna device with conductive thin film patterns on both sides of an insulating substrate, where the patterns are connected via conductive members, allowing simultaneous wet-etching and reducing signal resistance, thereby improving productivity and charging efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If antenna patterns are formed on both sides of an insulating substrate, then charging efficiency is improved by reducing signal resistance, but etching time increases
Solution Approach 1:
The antenna pattern is divided into two separate conductive thin films formed on opposite sides of an insulating substrate. Each film is etched independently, allowing parallel processing and reducing total etching time while maintaining low signal resistance through dual-path current flow.
Solution Approach 2:
The antenna structure transitions from a single-plane configuration to a three-dimensional arrangement with conductive films on both surfaces of a substrate. This spatial separation reduces signal resistance by providing multiple current paths while enabling simultaneous etching operations.
2Productivity
If antenna patterns are formed on both sides of an insulating substrate, then productivity is improved by reducing etching time through simultaneous wet-etching, but device complexity increases
Solution Approach 1:
The antenna system is segmented into two independent conductive thin films on separate substrate surfaces, each capable of independent etching. This segmentation enables simultaneous wet-etching operations, doubling productivity while the modular structure manages complexity through standardization.
Solution Approach 2:
Two separate antenna patterns on opposite substrate sides are electrically connected through conductive members, merging them into a functional dual-sided antenna system. This combination achieves improved productivity through parallel processing while maintaining manageable device complexity through unified electrical connection.
3Adaptability or versatility
If separate switches are provided to selectively switch between upper and lower antennas, then adaptability is improved, but device complexity increases
Solution Approach 1:
The upper and lower antenna patterns are electrically connected through conductive members, merging them into a single integrated antenna system. This eliminates the need for separate switching mechanisms while maintaining adaptability through unified operation of both antenna patterns.
Solution Approach 2:
The dual-sided antenna structure serves multiple functions simultaneously - both upper and lower patterns operate together to provide enhanced signal resistance reduction and improved charging efficiency, eliminating the need for selective switching while maintaining system versatility.
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 significantly reduces etching time, enhances charging efficiency by minimizing signal resistance, and simplifies manufacturing by eliminating the need for separate terminal patterns, thus improving overall productivity and cost-effectiveness.
Implementation Method 1
improve charging efficiency by reducing resistance of a wireless power signal
Implementation Method 2
receive wireless power in the form of electromagnetic induction or electromagnetic resonance
Data Source
AI summary
Provided are an antenna device, a method of manufacturing the same, and an electronic apparatus having the antenna device. The antenna device includes: an insulating substrate; a first antenna pattern formed on one surface of the insulating substrate; and a second antenna pattern formed on the other surface of the insulating substrate and connected to the first antenna pattern.