Segmented Housing Antenna Layout for Reduced Wave Interference
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Solution Overview
Problem
The performance of antenna modules in electronic devices is degraded due to interactions with conductive materials in their propagation path, leading to reduced sensitivity, especially when conductive portions of the housing are used as antennas, making it challenging to maintain effective wireless communication across various frequency bands.
Innovation Solution
Incorporating a non-conductive portion in the housing that overlaps with the antenna module to minimize the impact of conductive materials on electromagnetic waves, while ensuring a sufficient thickness and length of the conductive portion to function as an antenna, allowing for efficient transmission and reception of wireless communication signals across different frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a conductive portion of the housing is utilized as an antenna, then the antenna length can be secured for low-frequency bands, but the conductive portion may interfere with electromagnetic waves from the antenna module
Solution Approach 1:
The housing is divided into multiple conductive portions and non-conductive portions along the propagation path of electromagnetic waves. This segmentation allows different sections to serve different functions: conductive portions provide antenna functionality for low-frequency bands, while non-conductive portions allow electromagnetic waves to pass through with minimal interference.
Solution Approach 2:
Different portions of the housing are assigned different material properties (conductive or non-conductive) based on their specific functional requirements. The non-conductive portion is strategically placed where electromagnetic waves need to propagate freely, while conductive portions are positioned to provide adequate antenna length without blocking wave propagation.
2Object-affected harmful factors
If the thickness of the conductive portion overlapping the antenna module is reduced, then the interference with electromagnetic waves is minimized, but the antenna performance may be degraded
Solution Approach 1:
The thickness of the conductive portion is locally optimized based on its position and function. The non-conductive portion has minimal thickness to allow wave propagation, while conductive portions maintain sufficient thickness to provide adequate electrical characteristics for antenna operation across different frequency bands.
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 design enhances the radiation performance of the antenna module by reducing interference from conductive materials, maintaining signal integrity and strength across various frequency bands, including low-frequency bands, while ensuring the conductive portion can operate effectively as an antenna.
Implementation Method 1
Electromagnetic waves emitted from the antenna element is transmitted to the outside of the electronic device, through the non-conductive portion
Implementation Method 2
Electromagnetic waves radiating from antenna elements of an antenna module may be reflected by a conductive material disposed in its propagation path
Data Source
AI summary
An electronic device is provided. The electronic device includes a housing including a first surface facing a front side of the electronic device, a second surface opposite to the first surface, and a peripheral part surrounding a space between the first surface and the second surface and including a conductive portion and a first non-conductive portion contacted with an end portion of the conductive portion, and an antenna module including a substrate, in the housing, disposed in a direction parallel to a portion of the peripheral part and a plurality of antenna elements disposed on a surface of the substrate and spaced apart from each other in the direction, wherein, when the peripheral part is viewed vertically, the peripheral part includes a first region overlapping the antenna module and a second region including the conductive portion having a thickness greater than a thickness of the conductive portion included in the first region, and wherein, when the peripheral part is viewed vertically, the first non-conductive portion overlaps one of the plurality of antenna elements in the first region.