Antenna Arrangement in Electronic Device Window Plate
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Solution Overview
Problem
Electronic devices with metal housings face challenges in maintaining RF signal characteristics and gain due to the shielding effect, making it difficult to achieve a slim design while ensuring the antennas are not visible from the outside.
Innovation Solution
The design incorporates a window plate with transparent and opaque regions, positioning antennas between the opaque region and the housing, and using a wireless communication module to support ultra-wideband communication, with antennas disposed along specific edges to minimize interference and maintain signal integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a metal housing is used to shield the lower region of the display, then the aesthetic appearance and structural integrity are improved, but the RF signal characteristic and gain are distorted or reduced
Solution Approach 1:
The housing is designed with different material properties in different regions: a first region made of metal material for structural integrity and aesthetic appearance, and a second region made of non-metal material (such as ceramic or plastic) that allows RF signals to pass through. This local differentiation resolves the contradiction by providing metal shielding where needed while maintaining RF signal characteristics in the antenna region.
Solution Approach 2:
The housing is segmented into multiple regions with different materials: the first region (metal) for structural support and the second region (non-metal) for RF signal transmission. This segmentation allows each region to fulfill its specific function without interfering with the other, resolving the contradiction between structural integrity and RF signal quality.
2Reliability
If an opening is constructed in the metal housing to expose the antennas, then the RF signal characteristic is improved, but the antennas become visible from the outside increasing device thickness
Solution Approach 1:
The housing has a second region with different material properties (non-metal) specifically at the antenna location, allowing RF signals to pass through while maintaining the external appearance of a solid, continuous housing. This eliminates the need for visible openings while preserving RF signal characteristics.
Solution Approach 2:
A non-metal material (such as ceramic or plastic) is introduced as an intermediary substance in the housing structure at the antenna region. This intermediary material allows RF signals to pass through while providing enough opacity to hide the antennas, thus resolving the contradiction between signal transmission and aesthetic appearance.
3Shape
If the window plate is made entirely opaque to hide the antennas, then the aesthetic appearance is improved, but the RF signal transmission is blocked
Solution Approach 1:
The window plate is designed with different opacity characteristics in different regions: an opaque first region for aesthetic appearance and a transparent or translucent second region at the antenna location for RF signal transmission. This local differentiation allows the plate to hide the antennas while permitting RF signals to pass through.
Solution Approach 2:
The window plate is segmented into multiple regions with different optical properties: opaque regions for aesthetic appearance and transparent/translucent regions for RF signal transmission. This segmentation resolves the contradiction by allowing each region to fulfill its specific function without interfering with the other.
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 allows for effective RF signal transmission and reception while maintaining a slim design, overcoming the limitations of metal housing interference and ensuring the antennas are not visible, thus enhancing the device's positioning capabilities.
Implementation Method 1
A plurality of antennas disposed between the opaque region of the window plate and the first face of the housing... supporting ultra-wideband communication by using the plurality of antennas
Implementation Method 2
when a housing of the electronic device disposed to shield (or finish) the lower region of the display is constructed of a metal material, an RF signal characteristic of the plurality of antennas may be distorted due to the metal housing, or a gain of the RF signal transmitted/received by the plurality of antennas may be reduced
Data Source
AI summary
Disclosed is an electronic device including a window plate comprising a transparent region and an opaque region surrounding the transparent region, a display disposed below the transparent region of the window plate, a housing comprising a first face corresponding to a rear face of the display and a second face corresponding to a side face of the display, the housing surrounding the rear face and the side face of the display, a plurality of antennas disposed between the opaque region of the window plate and the first face of the housing, and a wireless communication module electrically coupled to the plurality of antennas and supporting ultra-wideband communication by using the plurality of antennas, wherein the plurality of antennas comprises a first antenna disposed along a first edge region corresponding to an edge of the first face of the housing, and a second antenna disposed along a second edge region corresponding to the edge of the first face of the housing and perpendicular to the first edge region.