Multilayer Dipole Antenna Module for Compact Dual Polarization
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Solution Overview
Problem
Implementing a dipole antenna with dual polarization characteristics is challenging in antenna structures without sufficient space, particularly in 5G communication systems where specific beam patterns, radiation patterns, directivity, gain, beam width, or polarization requirements need to be met.
Innovation Solution
The electronic device incorporates a housing with a printed circuit board featuring multiple conductive layers and a ground, where the antenna structure includes conductive patterns electrically connected to feeding lines, allowing for dual polarization radiation by strategically extending conductive lines and radiation parts at specific angles to achieve desired polarization directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If a dipole antenna is implemented to achieve wider beam coverage, then the beam width is improved, but the device complexity increases due to space requirements for dual polarization
Solution Approach 1:
The patent implements a nested dipole antenna structure where a first dipole antenna and a second dipole antenna are arranged in a nested configuration. The first dipole antenna includes a first conductive pattern on a first substrate, while the second dipole antenna includes a second conductive pattern on a second substrate that is positioned within or adjacent to the first substrate. This nesting arrangement allows both antennas to occupy a compact space, achieving dual polarization functionality without significantly increasing the overall device footprint or structural complexity.
Solution Approach 2:
The patent utilizes multi-layer substrate arrangement to achieve dual polarization in a compact form factor. By stacking the first substrate containing the first conductive pattern and the second substrate containing the second conductive pattern in different spatial dimensions (layers), the design achieves three-dimensional space utilization. This dimensional approach allows both dipole antennas to coexist in a limited space while maintaining their respective polarization characteristics, thereby improving beam coverage without proportionally increasing device complexity.
2Adaptability or versatility
If multiple conductive patterns are arranged to achieve dual polarization characteristics, then the polarization versatility is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The patent combines multiple functional elements into integrated assemblies. The first dipole antenna and second dipole antenna are merged into a single antenna module with coordinated substrates and conductive patterns. The feeding structures, conductive patterns, and substrates are designed as integrated units that work together to achieve dual polarization. This merging approach simplifies the overall manufacturing process compared to assembling separate antenna components, as the integrated design allows for coordinated fabrication and reduces the number of independent alignment operations required.
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 enables the antenna module to radiate signals with dual polarization characteristics, enhancing coverage and isolation between antenna elements, thereby addressing the space constraints and polarization requirements in 5G communication systems.
Implementation Method 1
The antenna structure includes a first conductive pattern that is formed at the first conductive layer and is electrically connected with a first feeding line, a second conductive pattern that is formed at the second conductive layer interposed between the first conductive layer and the third conductive layer and is electrically connected with the ground, and a third conductive pattern that is formed at the third conductive layer and is electrically connected with a second feeding line
Data Source
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AI summary
An electronic device including an antenna is provided. The electronic device includes a housing that includes a first plate, a second plate facing away from the first plate, and a side member surrounding a space between the first plate and the second plate, the side member being coupled to the second plate or integrally formed with the second plate, a printed circuit board that is disposed in the space and includes a first conductive layer, a second conductive layer, a third conductive layer, and a ground, and an antenna structure that is disposed in the space. The antenna structure includes a first conductive pattern that is formed at the first conductive layer and is electrically connected with a first feeding line, a second conductive pattern that is formed at the second conductive layer interposed between the first conductive layer and the third conductive layer and is electrically connected with the ground, and a third conductive pattern that is formed at the third conductive layer and is electrically connected with a second feeding line.