Smart Glasses Antenna Grounding Using a Conductive Support Frame
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Solution Overview
Problem
Smart glasses with integrated antennas face challenges in space utilization due to the electrical length of coaxial lines affecting impedance matching and consistency, necessitating additional grounding structures that occupy valuable space.
Innovation Solution
The solution involves a conductive support member electrically connected to the shielding layer of the coaxial line, with multiple grounding positions and a conductive adhesive for stable electrical connections, reducing the need for additional grounding structures and improving antenna performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional grounding structures are added to improve antenna impedance matching, then antenna performance is improved, but the space occupied by the antenna increases
Solution Approach 1:
The patent combines the grounding function with the existing support member by making it conductive. The support member simultaneously provides mechanical support for the antenna and serves as the grounding structure, eliminating the need for separate grounding elements and reducing overall antenna space occupation while maintaining impedance matching performance
Solution Approach 2:
The support member is designed to perform multiple functions: it provides mechanical support for the antenna, serves as a grounding structure through its conductive properties, and enables electrical connection between the antenna and ground. This multi-functionality reduces the number of components needed and minimizes space requirements
2Reliability
If the coaxial line is electrically connected to the conductive support member, then the shielding layer is grounded and antenna performance is improved, but the device complexity increases
Solution Approach 1:
The conductive support member inherently provides the grounding function without requiring additional grounding components. The support member's own conductive properties enable it to serve as the grounding path, and the connection is achieved through direct contact or simple bonding, reducing overall device complexity
Solution Approach 2:
The patent extracts the grounding function from separate grounding structures and integrates it into the support member itself. By removing the need for dedicated grounding elements and using the support member's conductive properties, the solution simplifies the overall antenna structure while maintaining effective grounding
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 approach enhances antenna performance by stabilizing electrical connections, improving impedance matching and consistency, and reduces the space occupied by the antenna, thereby increasing the compactness and efficiency of smart glasses.
Implementation Method 1
the support member is conductive, and the coaxial line is fixed to the support member; the shielding layer is electrically connected to the support member to achieve grounding of the antenna
Implementation Method 2
the electrical connection position and the grounding position are electrically connected via a conductive adhesive
Data Source
AI summary
The present application provides smart glasses. The smart glasses include a support member, an imaging device and an antenna mounted on the support member; the antenna includes an antenna body and a coaxial line electrically connected to the antenna body; the coaxial line is provided with a shielding layer; the support member has electrical conductivity, and the coaxial line is fixed to the support member; the shielding layer is electrically connected to the support member so as to realize grounding of the antenna.