Folded Conductive Antenna for Thin Electronic Devices
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Solution Overview
Problem
The challenge is to secure antenna performance in electronic devices with limited space and design constraints, particularly where the human body's presence can interfere with wireless communication, leading to deteriorated antenna performance.
Innovation Solution
The electronic device incorporates a housing with a transparent substrate and conductive patterns that are electrically connected to both touch sensing and wireless communication circuits, allowing for flexible design and improved antenna performance by optimizing the spatial arrangement and connectivity within the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the thickness of the user device is reduced, then the design is improved and the device is more compact, but the antenna mounting space becomes insufficient leading to deteriorated antenna performance
Solution Approach 1:
The patent transitions the antenna structure from a traditional planar configuration to a three-dimensional folded structure. The conductive pattern is folded along a fold line to form multiple segments (first, second, third segments) that extend in different spatial directions, effectively increasing the antenna's electrical length and radiation aperture within a reduced thickness profile. This dimensional transformation allows the antenna to maintain adequate mounting space and performance while enabling device thinning.
2Adaptability or versatility
If multiple functions are integrated into a compact device, then the number of components increases and space is optimized, but it becomes difficult to secure adequate antenna function
Solution Approach 1:
The patent merges the antenna structure with the display assembly by integrating the conductive pattern directly into the display structure. The folded conductive pattern is positioned between the transparent substrate and the display, utilizing the display's internal space for antenna functionality. This merging eliminates the need for separate antenna components, allowing multiple functions (display and wireless communication) to coexist in a compact configuration while maintaining adequate antenna performance.
3Volume of moving object
If the antenna is mounted in a compact space, then the device size is reduced, but the antenna performance deteriorates due to human body influence
Solution Approach 1:
The folded configuration of the conductive pattern creates a three-dimensional antenna structure with extended radiation aperture in multiple directions. By folding the antenna along a fold line to form segments that extend in different spatial orientations, the antenna achieves better spatial distribution of its radiation pattern. This dimensional transformation helps mitigate the shielding effect of the human body by creating radiation paths that are less susceptible to body interference, thereby maintaining antenna performance in compact devices.
Data Source
AI summary
An electronic device is provided. The electronic device includes a housing having a first face, a second face that faces a direction opposite to the first face, and a side face that encloses at least a portion of a space between the first face and the second face, a touch sensing circuit disposed within the housing, a communication circuit disposed within the housing, a transparent substrate that forms at least a portion of the first face, the second face, and the side face of the housing, at least one display disposed within the housing along at least a portion of the transparent substrate, a first conductive pattern disposed between the transparent substrate and the at least one display or inside the at least one display, and electrically connected with the touch sensing circuit, and a second conductive pattern disposed between the transparent substrate and the first conductive pattern, and electrically connected with the wireless communication circuit.