Compound-Curved Antenna Integration for Head-Mounted Displays
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Solution Overview
Problem
Electronic devices with complex shapes, such as head-mounted devices, face challenges in integrating flexible printed circuit antennas with curved surfaces, as existing antennas do not conform well to non-developable surfaces, leading to installation difficulties and aesthetic issues.
Innovation Solution
A flexible printed circuit antenna with compound curvature is laminated to a dielectric member using adhesive, matching the curvature of the device's housing structure, allowing it to fit seamlessly within the device's design while maintaining functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a flexible printed circuit antenna is used with a curved surface, then the antenna can conform to the device shape, but existing antennas do not conform well to non-developable surfaces leading to installation difficulties
Solution Approach 1:
The patent applies curvature by forming the flexible printed circuit antenna substrate into a three-dimensional shape with compound curvature that matches the non-developable surface of the device housing. This allows the antenna to conform to complex curved surfaces while maintaining ease of installation through adhesive bonding.
2Shape
If an antenna is attached to a curved surface, then the device appearance is maintained, but installation difficulties arise with existing antenna designs
Solution Approach 1:
The patent uses a flexible printed circuit substrate that can be formed into a three-dimensional shape with compound curvature. This flexible structure allows the antenna to be attached to curved surfaces using adhesive, maintaining device appearance while enabling straightforward installation without complex mechanical attachment methods.
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 successful integration of antennas with complex curvature, enhancing installation ease and maintaining the device's shape and appearance, while ensuring effective wireless communication capabilities.
Implementation Method 1
A flexible printed circuit antenna with compound curvature is laminated to a dielectric member using adhesive
Data Source
AI summary
A head-mounted device may have a head-mounted housing that is configured to be worn on a head of a user. While the head-mounted device is being worn, left and right displays in optical modules in the head-mounted device may provide images to eye boxes located rearward of the head-mounted device. A forward-facing publicly viewable display on a front portion of the head-mounted device may be covered with a transparent housing portion forming a display cover layer. A dielectric member having a ring-shaped edge portion surrounding the publicly viewable display may be mounted under a corresponding edge portion of the display cover layer. A flexible printed circuit antenna with compound curvature may be laminated to the edge portion of the dielectric member.