Metal-Housing Antenna Layout Using Camera Window Radiation
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Solution Overview
Problem
The use of a metal rear cover in tablet computers limits antenna radiation performance, and existing solutions either compromise aesthetics or increase costs and directionality.
Innovation Solution
An antenna design utilizing a non-display region on the screen and a camera module window on the rear housing for radiation, without requiring additional slots on the rear housing, using a slot differential mode antenna with ground and feed terminals connected by metal connectors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a slot is cut in the metal rear cover to form a radiation space for the antenna, then antenna radiation performance is improved, but aesthetics of the body is severely affected and product competitiveness is reduced
Solution Approach 1:
The patent extracts the antenna radiation function from the rear cover area and relocates it to the front non-display region. By using the existing front camera opening and non-display area, the solution removes the need for cutting slots in the rear cover, thus preserving its aesthetic appearance while maintaining antenna radiation performance through a different spatial location.
Solution Approach 2:
The patent transitions the antenna radiation space from the rear dimension (back cover) to the front dimension (non-display region with camera opening). This dimensional shift allows the antenna to utilize the front camera module area as its radiation space, eliminating the need to compromise the rear cover's aesthetic integrity.
2Shape
If a cavity space inside the terminal body is used for radiation by using a cavity antenna, then aesthetics of the product is not affected, but antenna radiation directionality becomes strong and costs increase
Solution Approach 1:
The patent utilizes the existing front camera module opening and non-display region as the antenna radiation space. These existing structural elements serve dual purposes: the camera opening provides the radiation aperture while the non-display region provides the antenna element placement area. This self-service approach eliminates the need for additional cavity structures, reducing complexity and costs while maintaining aesthetic appearance.
Solution Approach 2:
The front camera module opening serves multiple functions: it maintains the aesthetic appearance of the front panel, provides the radiation space for the antenna, and allows the antenna to be integrated into the existing structural opening. This multi-functionality reduces the need for separate antenna cavities and associated complexity.
3Shape
If a metal rear cover is used for good tactile and visual effects, then user preference is increased, but antenna radiation performance is limited
Solution Approach 1:
The patent segments the antenna radiation function from the rear cover structure and places it in the front non-display region. This segmentation allows the rear cover to maintain its full metal aesthetic appearance without any slots or openings, while the antenna radiation function is independently implemented in the front camera area using the existing opening and non-display space.
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
Maintains aesthetics, achieves low directivity, high efficiency, and is not affected by the camera module, while reducing costs.
Implementation Method 1
the antenna is designed to perform energy radiation by using a window formed in a non-display region in front of a screen in the electronic device and a window provided on a rear housing of the electronic device for placing a camera module
Data Source
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AI summary
This application discloses an antenna and an electronic device, and relates to the field of antenna technologies. The antenna is used in the electronic device. The electronic device includes a metal back housing, a metal middle frame, and a metal screen substrate. A first window is formed between the screen substrate and the metal middle frame, and a second window is provided on the metal back housing. The metal back housing includes a first side and a second side opposite to each other, and a third side and a fourth side opposite to each other, the second window is provided close to the first side and/or the third side, a region between the first side and the second window is a first region, and a region between the third side and the second window is a second region. A first ground terminal, a feed terminal, and a second ground terminal are disposed on the screen substrate, the feed terminal is located between the first ground terminal and the second ground terminal, and projections of the first ground terminal, the feed terminal, and the second ground terminal on the metal back housing are located in the first region and/or the second region. The first ground terminal, the feed terminal, and the second ground terminal are connected to the metal back housing by using metal connectors respectively.