Hearing Device Antenna in Ground Layer
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Solution Overview
Problem
Hearing devices face challenges in achieving effective radio frequency (RF)-antenna functionality, particularly in binaural systems, due to size constraints, high design complexity, and the need for low latency and low noise communication, while also being cost-effective and lightweight, with existing solutions often compromising on antenna efficiency and polarization.
Innovation Solution
A hearing device design that utilizes an electrically conductive ground layer in the supporting structure, such as a printed circuit board, with a non-conductive opening and a connecting line that excites the ground layer to function as an antenna for wireless communication, eliminating the need for a separate antenna unit and allowing for optimized polarization and reduced component costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate antenna unit is used in the hearing device, then wireless communication functionality is achieved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent merges the antenna function with the existing ground layer of the supporting structure. The ground layer, which is already present to provide electrical reference potential for electronic components, is configured to also serve as the antenna element for wireless communication. This integration eliminates the need for a separate antenna unit, reducing device complexity and manufacturing cost while maintaining wireless communication functionality.
Solution Approach 2:
The ground layer is designed to perform multiple functions simultaneously: it serves as both the electrical reference potential for electronic components and as the radiating element for the antenna. By making the ground layer multi-functional, the patent eliminates redundant components and simplifies the overall device structure while achieving reliable wireless communication.
2Volume of moving object
If the hearing device size is reduced, then it becomes more suitable for wearability, but antenna performance deteriorates due to limited space
Solution Approach 1:
The patent combines the antenna function with the existing ground layer structure, allowing the antenna to utilize the available space within the compact hearing device housing. By using the ground layer as the antenna element, the design maximizes the use of existing structural components, enabling effective antenna performance within a reduced device volume suitable for wearability.
3Ease of manufacture
If manufacturing cost is reduced, then cost-effectiveness improves, but antenna efficiency may be compromised
Solution Approach 1:
The patent merges the antenna function with the existing ground layer that is already part of the supporting structure. This integration eliminates the need for separate antenna components, reducing part count and assembly steps, thereby lowering manufacturing cost while maintaining antenna efficiency through proper configuration of the ground layer as the radiating element.
4Reliability
If binaural communication quality is improved with low latency and low noise, then communication reliability increases, but device complexity increases
Solution Approach 1:
The patent integrates the antenna function into the ground layer, providing a compact and efficient wireless communication interface that supports low-latency and low-noise binaural communication. By eliminating separate antenna components and reducing the number of parts, the design achieves reliable high-quality communication while keeping device complexity low.
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 provides efficient RF-antenna functionality with improved on-body performance, reduced complexity and cost, and enhanced communication capabilities between hearing devices and accessories, while maintaining a low-profile and lightweight design, effectively addressing the limitations of existing technologies.
Implementation Method 1
The electrically conductive ground layer is configured to be excited by the connecting line, whereby the electrically conductive ground layer is configured to act as antenna for the wireless communication unit for emission and/or reception of an electromagnetic field.
Data Source
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AI summary
Disclosed is a hearing device comprising: a microphone configured to receive sound; a processing unit configured to provide a processed audio signal for compensating for a hearing loss of a user; a wireless communication unit configured for wireless communication; a supporting structure; wherein the supporting structure comprises: an electrically conductive ground layer, an electrically non-conductive opening; a connecting line extending from the wireless communication unit provided at a first side of the opening across or along the opening to a second side of the opening and being interconnected with the electrically conductive ground layer at the second side of the opening; wherein the electrically conductive ground layer is configured to be excited by the connecting line, whereby the electrically conductive ground layer is configured to act as antenna for the wireless communication unit for emission and/or reception of an electromagnetic field.