Antenna Structure for Slim Electronic Devices
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Solution Overview
Problem
Slim electronic devices face challenges in efficiently arranging antenna structures for both short-range and long-range wireless communication within limited internal space, requiring innovative solutions to enhance radiation performance without increasing mounting space.
Innovation Solution
The electronic device incorporates a dielectric substrate with multiple conductive patterns, including a first conductor, a second conductor extending from the first, and a third conductor capacitively coupled with the second, integrated with wireless communication circuits to transmit and receive signals across various frequency bands, optimizing antenna radiation performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large-sized conductive pattern is used for short-range communication antenna, then radiation performance is improved, but mounting space increases
Solution Approach 1:
The patent implements nesting by placing the short-range communication antenna (first antenna) inside the structure of the long-range communication antenna (second antenna). The first antenna's conductive pattern is positioned within the enclosed space formed by the second antenna's conductive pattern, allowing both antennas to coexist in a compact configuration without interfering with each other's radiation performance
Solution Approach 2:
The patent utilizes three-dimensional spatial arrangement by positioning antennas at different depths and orientations within the housing. The first antenna is disposed inside the second antenna's structure, effectively using vertical and radial dimensions to separate the antenna functions, thereby achieving compact mounting without compromising the required conductive pattern sizes for optimal radiation
2Adaptability or versatility
If multiple antenna structures are arranged in limited internal space, then communication capabilities are improved, but device thickness increases
Solution Approach 1:
The patent merges the structural functions of multiple antennas by integrating the first antenna's mounting structure within the second antenna's framework. The dielectric substrate and housing structures serve dual purposes as mounting platforms for both antennas, eliminating the need for separate mounting spaces and reducing overall device thickness
Solution Approach 2:
By nesting the first antenna inside the second antenna's structure, the patent achieves compact multi-antenna integration without increasing device thickness. The concentric or embedded arrangement allows both antennas to share the same spatial envelope, maintaining a slim profile while supporting multiple communication functions
3Area of stationary object
If antenna structures share mounting structures, then space efficiency is improved, but antenna performance may deteriorate
Solution Approach 1:
The patent applies local quality by providing electrically isolated mounting regions for different antennas within the shared structure. The dielectric substrate creates distinct electrical zones that prevent interference between the first and second antennas, allowing each antenna to maintain its optimal electrical characteristics while sharing the physical mounting space
Solution Approach 2:
The dielectric substrate acts as an intermediary between the two antennas, providing electrical isolation and preventing harmful interactions. This intermediate layer allows the antennas to share the mounting structure while maintaining independent electrical performance, effectively mediating between the conflicting requirements of space sharing and performance preservation
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 enhances antenna radiation performance by extending bandwidth and shifting frequency bands, contributing to a slim design without expanding the mounting space, thereby improving communication capabilities.
Implementation Method 1
at least one third conductor capacitively coupled with the at least one second conductor
Data Source
AI summary
In various embodiments, an electronic device may include: a housing including an inner space, and a first antenna structure disposed in the inner space of the housing, the first antenna structure including: a dielectric substrate, at least one first conductor disposed in a first area of the dielectric substrate, and at least one second conductor disposed in a second area of the dielectric substrate extending from the first area of the dielectric substrate. The electronic device may further include at least one third conductor capacitively coupled with the at least one second conductor, a first wireless communication circuit configured to transmit and/or receive a signal of a first frequency band through the at least one first conductor, and a second wireless communication circuit configured to transmit and/or receive a radio signal of a second frequency band through the at least one second conductor and the at least one third conductor.