Foldable Magnet Antenna Structure for Compact Wireless Housings
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Solution Overview
Problem
The arrangement of multiple magnets adjacent to the edge of a foldable electronic device's housing reduces the effective volume of the antenna, and spacing the antenna apart from the magnets increases the device's size, compromising antenna performance.
Innovation Solution
The electronic device incorporates a magnet structure with a conductive coating member enclosing a magnet, integrated with a wireless communication circuit, to function as an antenna radiator, maintaining the folding state while securing antenna performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple magnets are arranged adjacent to the edge of the housing to maintain folding state, then the folding structure durability is improved, but the effective volume of the antenna is reduced
Solution Approach 1:
The patent combines the magnet structure and antenna into a single integrated component. The magnet is enclosed by a conductive coating member that functions as an antenna radiator, allowing the same structure to provide both magnetic holding force for folding state maintenance and electromagnetic radiation for wireless communication, thereby eliminating the need for separate antenna space
Solution Approach 2:
The conductive coating member serving as the antenna radiator performs multiple functions: it provides electromagnetic radiation for communication while simultaneously enclosing the magnet to maintain the folding state. This multi-functional design allows the structure to serve both magnetic and antenna purposes, resolving the space conflict between magnets and antenna volume
2Reliability
If the antenna is disposed spaced apart from the multiple magnets to improve antenna performance, then the antenna performance is improved, but the size of the foldable electronic device increases
Solution Approach 1:
The patent merges the magnet and antenna functions into a single integrated structure where the conductive coating member encloses the magnet and serves as the antenna radiator. This integration eliminates the need for spatial separation between magnets and antenna, maintaining compact device size while providing functional performance
Solution Approach 2:
The conductive coating member acts as an intermediary structure that encloses the magnet while simultaneously functioning as the antenna radiator. This intermediary element resolves the conflict between magnetic field containment and electromagnetic radiation by providing a conductive enclosure that serves both purposes
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 effective antenna volume and performance while minimizing the device's size, allowing for secure folding and wireless communication in designated frequency bands.
Implementation Method 1
the wireless communication circuit feeds a portion of the conductive coating member of the magnet structure to transmit and/or receive a signal in a designated first frequency band by using the conductive coating member as an antenna radiator
Implementation Method 2
the magnet is disposed to maintain a folding state in which the first housing and the second housing are folded
Data Source
AI summary
An electronic device is provided. The electronic device includes a housing including a first housing and a second housing connected to the first housing by a hinge structure to be rotatable around a first axis, a magnet structure disposed inside the housing, the magnet structure including a magnet and a conductive coating member for enclosing a surface of the magnet, and a wireless communication circuit electrically connected to the conductive coating member, wherein the magnet is disposed to maintain a folding state in which the first housing and the second housing are folded, and the wireless communication circuit is configured to feed a portion of the conductive coating member of the magnet structure to transmit and/or receive a signal in a designated first frequency band by using at least one of the conductive coating member as a first antenna radiator.