Frame Antenna Segmentation for Multi-Band Smart Glasses
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Solution Overview
Problem
Existing head-mounted devices face challenges in efficiently integrating antennas within their compact design to support multiple wireless communication bands while maintaining a lightweight and comfortable fit for users.
Innovation Solution
The integration of antennas formed from metal frame segments divided by dielectric-filled gaps, coupled with radio-frequency transceiver circuitry through transmission lines, and adjustable components to tune the antennas for optimal performance across various frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If antennas are integrated into the metal frame of head-mounted devices, then wireless communication capability is improved, but device complexity increases due to the need for dielectric-filled gaps and segmentation
Solution Approach 1:
The patent combines the antenna structure with the metal frame by using segments of the frame itself as antenna resonating elements. This merging eliminates the need for separate antenna components and reduces overall device complexity while maintaining wireless communication capability across multiple bands.
Solution Approach 2:
The metal frame segments serve dual functions: structural support for the head-mounted device and as antenna resonating elements for wireless communication. This multi-functionality reduces the number of separate components needed, thereby reducing device complexity while improving communication capability.
2Adaptability or versatility
If the metal frame is divided into segments to form antenna resonating elements, then antenna performance across multiple frequency bands is improved, but manufacturing complexity increases due to dielectric-filled gaps
Solution Approach 1:
The metal frame is segmented into multiple sections separated by dielectric-filled gaps, creating antenna resonating elements that can operate across multiple frequency bands. This segmentation enables the antenna to handle diverse communication standards while maintaining a unified structural design that simplifies manufacturing.
Solution Approach 2:
The antenna structure uses composite construction combining metal frame segments with dielectric-filled gaps. This composite approach allows the same structural component to function as both mechanical support and antenna element, improving multi-band performance while maintaining manufacturing feasibility through standardized composite techniques.
3Adaptability or versatility
If antennas are added to head-mounted devices, then wireless communication capability is improved, but device weight increases affecting user comfort
Solution Approach 1:
By merging the antenna resonating elements with the metal frame segments, the patent eliminates the need for separate antenna components. This integration ensures that no additional weight is added to the device while maintaining full wireless communication capability across multiple bands.
Solution Approach 2:
The metal frame segments perform dual functions as both structural support and antenna elements, eliminating the need for dedicated antenna components. This multi-functionality ensures that the device maintains its lightweight design while achieving comprehensive wireless communication capability.
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 configuration allows for efficient wireless communication across multiple bands with minimal space consumption, maintaining device comfort and functionality.
Implementation Method 1
The antennas may be formed from antenna resonating elements created by interposing dielectric-filled gaps into the metal frame that divide the metal frame into one or more segments
Implementation Method 2
Antenna resonating elements formed from segments of the metal frame may be coupled to the radio-frequency transceiver circuitry using transmission lines
Data Source
AI summary
A head-mounted device such as a pair of glasses may have display systems. The display systems may present images to eye boxes for viewing by a user. The glasses may have clear lenses through which real-world objects may be viewed from the eye boxes. The glasses may have a metal frame that surrounds the lenses and may have temples that are coupled to the frame using hinges. Radio-frequency transceiver circuitry such as cellular telephone transceiver circuitry may be coupled to one or more antennas in the head-mounted device. The antennas may have antenna resonating elements formed by placing dielectric-filled gaps in the metal frame to divide the frame into segments. Antenna resonating elements formed from segments of the metal frame may be coupled to the radio-frequency transceiver circuitry using transmission lines.