Loop Antenna Mesh Cut Portions for Visual Inconspicuousness
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Solution Overview
Problem
Loop antennas with a mesh structure struggle to remain visually inconspicuous while maintaining performance, as the proximity of the dummy pattern portion to the antenna portion leads to performance degradation and visibility issues.
Innovation Solution
A loop antenna design featuring an insulating substrate with an antenna portion and a dummy pattern portion, where the dummy pattern portion includes cut portions to prevent current flow and is separated from the antenna portion, allowing for a visually inconspicuous design without performance degradation, using a mesh structure with cut portions to disconnect current paths and maintain antenna functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the dummy pattern portion is placed close to the antenna portion to improve visual inconspicuousness, then cosmetic appeal is improved, but antenna performance degrades due to current flow interference
Solution Approach 1:
The dummy pattern portion is segmented from the antenna portion through cut portions that divide the conductor, preventing current flow between them while maintaining visual similarity. This segmentation allows the dummy pattern to be placed closer to the antenna portion without degrading antenna performance.
Solution Approach 2:
The harmful current flow path is extracted from the system by introducing cut portions that remove the conductive connection between the antenna portion and dummy pattern portion. This extraction eliminates the interference while preserving the visual camouflage effect.
2Shape
If the mesh structure line interval is reduced to improve visual blending, then cosmetic appeal is improved, but current flow paths increase affecting antenna operation
Solution Approach 1:
Even when the mesh structure has a small line interval for better visual blending, the cut portions segment the conductor to prevent current flow paths from forming continuous loops. This segmentation maintains antenna operation reliability regardless of the mesh density.
3Reliability
If the dummy pattern portion is electrically separated from the antenna portion, then antenna performance is maintained, but visual similarity and cosmetic appeal are reduced
Solution Approach 1:
The cut portions act as intermediaries that provide electrical separation between the antenna portion and dummy pattern portion while allowing them to remain visually similar. The cut portions are designed to be minimal and strategically placed to maintain the visual camouflage effect while ensuring electrical isolation.
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 design effectively renders the loop antenna visually inconspicuous while maintaining its performance by preventing current flow through the dummy pattern portion, ensuring the antenna functions effectively even when the dummy pattern is close to the antenna portion.
Implementation Method 1
a cut portion 108 formed to disconnect a path included in the mesh structure, so that a flow of current that affects operation of the antenna portion 107 is prevented from flowing
Data Source
AI summary
This loop antenna is provided with: an insulating substrate; an antenna portion that is a conductor provided on the substrate and includes a first feeding portion, a second feeding portion, and an antenna mesh portion having a mesh structure and forming a loop shape by connecting the two feeding portions to each other; and a dummy pattern part portion that is a conductor having a mesh structure and provided in a region surrounded by the antenna portion, and is isolated from the antenna portion. The dummy pattern portion has at least one cut portion that cuts a path included in the mesh structure.