Segmental Housing Antenna for Electronic Devices
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Solution Overview
Problem
Electronic devices with metal frame housings face challenges in antenna radiation efficiency due to signal distortion and limited internal space, especially when supporting multiple frequency bands or complex antenna forms.
Innovation Solution
The housing incorporates a segmental portion with a metallic member for antenna function, divided by non-metallic segments that act as insulation, allowing for improved antenna performance by isolating segments and enhancing radiation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the antenna is embedded in a metal frame housing, then the housing structure is strong and aesthetically pleasing, but the antenna's radiation efficiency degrades due to signal distortion and blocking
Solution Approach 1:
The metal frame housing is divided into multiple segments along its perimeter, with non-conductive material inserted between adjacent metal segments. This segmentation breaks the continuous conductive path of the metal frame, preventing signal distortion and blocking while maintaining the structural strength of the housing.
Solution Approach 2:
A non-conductive material is introduced as an intermediary element between adjacent metal segments of the housing. This intermediary material electrically isolates the metal segments from each other, allowing the antenna signal to propagate without distortion while the metal segments continue to provide structural support.
2Volume of moving object
If the housing inner space is reduced to make the device thinner, then the device becomes more portable, but the antenna arrangement becomes more difficult and radiation efficiency decreases
Solution Approach 1:
The housing perimeter is segmented into multiple metal portions with non-conductive material between them, creating an optimized antenna configuration that fits within the limited internal space of thin devices while maintaining effective radiation efficiency through proper signal isolation.
3Adaptability or versatility
If multiple antennas or complicated antenna forms are used to support various frequency bands, then the device supports more frequency bands, but the housing inner space becomes more crowded
Solution Approach 1:
The segmented housing structure serves multiple functions: it provides structural strength, acts as an antenna element, and enables support for multiple frequency bands through the controlled electromagnetic properties of the segmented configuration, eliminating the need for separate dedicated antenna components.
Data Source
AI summary
A housing of an electronic device may operate as an antenna while being partly insulated to prevent the degradation of antenna radiation efficiency. The electronic device may include a housing, a display, at least one sensor, and at least one processor. The housing may include a first surface, a second surface opposite to the first surface, and a side surface enclosing at least part of a space between the first and second surfaces. The side surface may include an elongated first member that is formed of an opaque material, and at least one second member dividing the first member into at least two segments and formed of a light-transmittable material. The at least one sensor may be located in the space adjacent to the at least one second member and oriented to detect incident light received through the at least one second member.