Antenna Beam Pattern Control in Conductive Housing
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Solution Overview
Problem
Next-generation wireless communication systems face challenges in maintaining antenna radiation performance due to the presence of conductive structures within the electronic device, which can distort the radiation direction and degrade performance.
Innovation Solution
An electronic device design incorporating a printed circuit board (PCB) with a first and second antenna array forming beam patterns in specific directions, and a conductor strategically placed between these arrays to maintain desired radiation patterns and prevent performance degradation, even when a conductive structure is nearby.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a conductive structure is disposed around the antenna structure to reinforce rigidity and create appearance, then structural strength and aesthetics are improved, but the radiation direction of the antenna structure is changed and distorted, degrading antenna radiation performance
Solution Approach 1:
The antenna structure is divided into multiple antenna elements arranged in specific patterns. By segmenting the antenna into discrete elements with controlled spacing and orientations, the radiation pattern can be precisely managed even in the presence of conductive structures, preventing unwanted distortion while maintaining structural integrity.
Solution Approach 2:
Different regions of the antenna structure are designed with different characteristics. The antenna elements are positioned and oriented to create specific radiation patterns in different directions, allowing the structure to maintain desired radiation performance in critical directions while accommodating conductive structures in other regions for structural support.
2Ease of operation
If antenna elements are arranged to form beam patterns in specific directions, then communication directionality is improved, but the presence of conductive structures distorts the beam pattern in undesired directions
Solution Approach 1:
The antenna elements are arranged in asymmetric patterns rather than uniform distributions. This asymmetric arrangement allows the beam patterns to be steered and shaped in specific desired directions while minimizing interference and distortion in other directions, even when conductive structures are present in the housing.
Solution Approach 2:
The antenna structure utilizes three-dimensional spatial arrangement of multiple antenna elements with different orientations. By distributing elements in multiple dimensions and orientations, the system can form complex beam patterns that maintain desired radiation characteristics in specific directions while reducing the impact of conductive structures on overall performance.
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
The solution effectively maintains antenna radiation performance by directing beam patterns as intended and improving gain characteristics, even in the presence of conductive structures, enhancing the overall communication efficiency.
Implementation Method 1
a first antenna array disposed in the space between the first and second board surfaces and forming a beam pattern in a third direction that the lateral board surface faces, and a second antenna array disposed at a position spaced apart from the first antenna array and forming a beam pattern in the first direction
Data Source
AI summary
An electronic device is provided. The electronic device includes a housing having an inner space. The electronic device may further include an antenna structure disposed in the inner space of the housing and including a printed circuit board (PCB) having a first board surface facing a first direction, a second board surface facing a second direction opposite to the first direction, and a lateral board surface surrounding a space between the first and second board surfaces, a first antenna array disposed in the space between the first and second board surfaces and forming a beam pattern in a third direction that the lateral board surface faces, and a second antenna array disposed at a position spaced apart from the first antenna array and forming a beam pattern in the first direction.