Smart Glasses Antenna Relay Layout for Head Shadowing
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Solution Overview
Problem
Wearable electronic devices, particularly eyeglass-type devices, face challenges with limited arrangement space and communication performance due to the compact design, which is affected by the physical position of the antenna relative to the user's head, leading to potential signal radiation area reduction or distortion.
Innovation Solution
The device incorporates a main body with rotatable supports and multiple antennas, including a communication module, relay module, and antennas disposed in these supports, allowing for efficient signal relay and radiation to minimize radiation shading by the user's head.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single antenna is used for wireless communication, then the device structure is simple, but communication reliability deteriorates when a body part is positioned between the antenna and external device
Solution Approach 1:
The single antenna is divided into multiple antenna elements (first antenna element and second antenna element) that are spatially separated. Each element can independently transmit or receive signals, allowing the system to select alternative paths when one path is blocked by a body part, thereby improving communication reliability without requiring a completely separate backup antenna system.
Solution Approach 2:
The patent introduces spatial diversity by positioning antenna elements at different locations and orientations. When a body part blocks the communication path of one antenna element, another element at a different spatial position can maintain the communication link, effectively adding a spatial dimension to the communication redundancy.
2Reliability
If multiple antennas are used to improve communication reliability, then communication reliability improves, but device complexity increases
Solution Approach 1:
Multiple antenna elements are integrated into a single wearable device structure, sharing common support components and control circuitry. The antenna elements are positioned to utilize the device's form factor efficiently, merging multiple functions into a compact arrangement that reduces overall structural complexity despite having multiple radiating elements.
Solution Approach 2:
The multiple antenna elements serve multiple purposes: they can operate independently for diversity communication, work together for MIMO (Multiple-Input Multiple-Output) capabilities, and adapt their usage based on the detected body part position. This multi-functionality allows a single antenna structure to provide both redundancy and enhanced communication performance.
3Object-affected harmful factors
If antenna elements are positioned far apart to reduce mutual interference, then mutual interference decreases, but the wearable device coverage area increases
Solution Approach 1:
The patent employs different positioning strategies for different antenna elements based on their specific functions and frequency characteristics. Each antenna element is positioned and oriented to optimize its local performance while minimizing interference with others. The support structure provides localized isolation and positioning that reduces mutual interference without requiring uniform spacing across the entire device.
Solution Approach 2:
The antenna elements are arranged in a compact, nested configuration where smaller antenna structures are positioned within or adjacent to larger ones. This nesting approach allows multiple antenna elements to coexist in a limited space with minimized mutual interference through careful positioning and orientation, rather than requiring large separations.
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 ensures efficient communication performance by reducing radiation shading and maintaining compactness, enabling lightweight and aesthetically pleasing wearable devices.
Implementation Method 1
a first antenna element and a second antenna element positioned at different positions of the wearable electronic device... when the wearable electronic device transmits a signal to, or receives a signal from, the external device
Data Source
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Figure 3(a)~3(b)
AI summary
An electronic device according to various embodiments disclosed in the present document includes a main body, a pair of glass lenses configured to be supported by the main body, at least one display module configured to be disposed on the pair of glass lenses, a first support configured to be rotatably connected to the frame, a second support configured to be rotatably connected to the frame and to be disposed to be spaced apart from the first support, a communication module configured to be disposed in the first support, a processor configured to be operatively connected to the communication module, a relay module configured to be disposed in the second support and to relay at least one signal, a first antenna configured to be disposed in the second support and to be electrically connected to the relay module, and a second antenna configured to be disposed in the second support and to be electrically connected to the relay module, wherein the processor is configured to radiate a first signal to the relay module by controlling the communication module, and the relay module is configured to radiate a second signal corresponding to the first signal received from the communication module using the first antenna to the outside using the second antenna.