Bezel Antenna Structure With Reinforcement Body Clearance
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Solution Overview
Problem
Antenna radiators formed by providing an antenna gap on the bezel of electronic devices suffer from reduced structural strength and antenna performance due to compact design requirements.
Innovation Solution
Incorporating a reinforcement body between the display screen and the back cover, with conductive support legs positioned away from the display screen to enhance structural strength and maintain antenna performance, while ensuring sufficient clearance for the radiators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an antenna gap is provided on the bezel to form antenna radiators, then the antenna can cover more frequency bands and types, but the structural strength at the bezel position is reduced and the bezel becomes easy to deform
Solution Approach 1:
A reinforcement body is introduced as an intermediary component between the display screen and back cover, positioned opposite the antenna gap. This reinforcement body acts as a mediator that compensates for the structural weakness caused by the antenna gap, providing additional support to the bezel without interfering with the antenna radiator function. The reinforcement body is spaced from the antenna radiator to avoid affecting electromagnetic wave transmission while enhancing the overall structural integrity at the critical gap location.
2Volume of moving object
If the electronic device is designed to be compact and lightweight, then the device size is reduced, but the clearance for antenna radiators is insufficient which reduces antenna performance
Solution Approach 1:
The patent utilizes the thickness dimension of the device to resolve the clearance issue. By positioning the reinforcement body in the thickness direction between the display screen and back cover, and spacing it from the antenna radiator, the design creates sufficient clearance for the radiator in the lateral direction while maintaining compact overall dimensions. This dimensional arrangement allows the antenna radiator to have adequate space for optimal performance without increasing the device's planar footprint.
3Strength
If the reinforcement body is positioned close to the antenna radiator, then structural strength is enhanced, but the clearance for the radiator is reduced which affects antenna performance
Solution Approach 1:
The reinforcement body is strategically positioned opposite the antenna gap where structural support is most needed, rather than uniformly distributed. The spacing between the reinforcement body and antenna radiator is carefully controlled to maintain local clearance requirements for electromagnetic wave transmission while providing localized structural reinforcement at the critical gap position. This localized approach ensures both structural integrity and antenna performance without requiring uniform increases in clearance throughout the entire device.
Data Source
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AI summary
Embodiments of this application provide an electronic device. The electronic device includes a middle frame, a display screen, a back cover, and a reinforcement body. The middle frame includes at least one bezel. The bezel includes a first radiator and a second radiator. Adjacent end portions of the first radiator and the second radiator are spaced apart to form an antenna gap. The first radiator includes a first conductive support leg, and the second radiator includes a second conductive support leg. In a thickness direction of the middle frame, the display screen and the back cover are disposed on two opposite sides of the middle frame. The reinforcement body is located between the display screen and the back cover. Both the first conductive support leg and the second conductive support leg are spaced from the reinforcement body, and the reinforcement body is disposed opposite to the antenna gap. In the thickness direction of the middle frame, at least one of the first conductive support leg and the second conductive support leg is located on one side that is of the reinforcement body and that faces away from the display screen.