Wearable Frame Antenna Layout for Multi-Band Coverage
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Solution Overview
Problem
Wearable devices, such as smart watches, lack sufficient space for antennas to support multiple wireless communication frequency bands, posing a challenge for antenna designers.
Innovation Solution
A wearable device design incorporating a frame element with multiple metal elements forming integrated antenna elements, each covering different frequency bands, including a dielectric substrate surrounded by these metal elements, optimizing bandwidth and impedance matching without increasing device size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional separate antennas are used for different frequency bands, then each frequency band can be covered, but the device size increases and space is insufficient for wearable devices
Solution Approach 1:
The patent combines multiple antenna elements (first, second, and third antenna elements) into a single integrated frame structure. Each antenna element is formed by different metal elements (first metal element, second metal element, third metal element) that are integrated together, allowing multiple frequency bands to be covered within a compact unified structure rather than using separate antennas for each band.
Solution Approach 2:
The frame structure serves multiple functions simultaneously: it provides structural support for the wearable device and acts as an integrated antenna system that covers multiple frequency bands (including 2.4GHz WLAN, 5G sub-6GHz, and GPS bands). This multi-functionality eliminates the need for separate antennas, reducing overall device size while maintaining comprehensive frequency coverage.
2Adaptability or versatility
If multiple separate antennas are added to cover more frequency bands, then wireless communication versatility improves, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent merges multiple antenna functions into a single integrated frame structure with multiple metal elements. Instead of adding separate antennas for different frequency bands, the design integrates first, second, and third antenna elements within one unified frame, reducing structural complexity and the number of components while maintaining multi-band capability.
Solution Approach 2:
The integrated frame structure performs multiple antenna functions simultaneously, covering WLAN (2.4GHz), 5G sub-6GHz, and GPS frequency bands within a single system. This universal design approach reduces device complexity by eliminating the need for multiple separate antenna systems and simplifies manufacturing processes.
3Adaptability or versatility
If antenna elements are made larger to improve bandwidth coverage, then frequency band coverage improves, but the compact form factor of wearable devices is compromised
Solution Approach 1:
The patent achieves wide bandwidth coverage by combining multiple antenna elements in an integrated structure. The first, second, and third antenna elements work together within the unified frame, allowing each element to be optimized for specific frequency ranges while collectively providing comprehensive bandwidth coverage without requiring any single element to be excessively large.
Solution Approach 2:
The patent utilizes three-dimensional spatial arrangement within the frame structure to accommodate multiple antenna elements. By organizing antenna elements in different spatial dimensions and orientations within the integrated frame, the design achieves wide bandwidth coverage while maintaining a compact overall form factor suitable for wearable devices.
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
Enables wideband operations across various frequency bands, including sub-6 GHz 5G, WLAN, and GPS, while maintaining a compact form factor and reducing manufacturing costs.
Implementation Method 1
A first antenna element is formed by the first metal element. A second antenna element is formed by the second metal element. A third antenna element is formed by the third metal element.
Data Source
AI summary
A wearable device includes a frame element and a dielectric substrate. The frame element includes a first metal element, a second metal element, and a third metal element. A first gap is provided between the first metal element and the second metal element. A second gap is provided between the second metal element and the third metal element. A third gap is provided between the third metal element and the first metal element. The dielectric substrate is surrounded by the first metal element, the second metal element, and the third metal element. A first antenna element is formed by the first metal element. A second antenna element is formed by the second metal element. A third antenna element is formed by the third metal element.