Parabolic Reflector Dipole Antenna for End-Fire 5G mmWave Coverage
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Solution Overview
Problem
Existing antennae lack the ability to simultaneously achieve high-directivity radiation performance and wide radiation performance, which is necessary for different scenarios in wireless communication.
Innovation Solution
The antenna element design includes a vertically polarized dipole antenna and a reflector arranged along a parabola, with branches disposed on the focus side of the parabola, enhancing end-fire performance and allowing for millimeter-wave transmission, and optionally combining with a horizontally polarized dipole antenna for dual-polarization, enabling MIMO functionality and improved data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the antenna uses a conventional dipole or patch structure, then the manufacturing is simple, but the radiation performance cannot simultaneously achieve high directivity and wide coverage
Solution Approach 1:
The antenna is divided into multiple independent dipole antennas (first dipole, second dipole, etc.) arranged in specific spatial configurations. Each dipole can be independently optimized for different radiation characteristics, allowing the system to achieve both high directivity and wide coverage through coordinated operation of segmented elements
Solution Approach 2:
The patent transitions from conventional two-dimensional planar antenna layouts to three-dimensional spatial arrangements of dipole elements. By positioning dipoles at different heights and orientations in 3D space, the antenna achieves superior radiation performance with enhanced directivity and coverage area that cannot be obtained with planar configurations
2Reliability
If the antenna is designed for high-directivity radiation, then the end-fire performance is improved, but the radiation coverage becomes narrow
Solution Approach 1:
Multiple dipole antennas with different radiation characteristics are merged into a single integrated antenna system. The first dipole provides high-directivity end-fire radiation while the second dipole contributes to wide coverage, and their combined operation achieves both high end-fire performance and broad radiation coverage simultaneously
Solution Approach 2:
The antenna system is designed to perform multiple functions through different dipole configurations. The same antenna structure can achieve high-directivity mode for focused communication and wide-coverage mode for area coverage, making it universally applicable to different communication scenarios without requiring separate antenna systems
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 design achieves high end-fire performance with reduced back-end radiation, covers globally mainstream 5G millimeter-wave frequency bands, and enhances communication reliability and data transmission rates through dual-polarization and MIMO capabilities.
Implementation Method 1
a reflector arranged along a parabola, with branches disposed on the focus side of the parabola
Data Source
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AI summary
The present disclosure provides an antenna element and an electronic device. The antenna element includes: a substrate, having a ground plate; a vertically polarized dipole antenna, including a first antenna branch and a second antenna branch, where the first antenna branch and the second antenna branch are disposed in the substrate at an interval; a reflector, including several reflection pillars, where the several reflection pillars are sequentially arranged in the substrate at intervals along a parabola; and a first feeding structure, where the first antenna branch and the second antenna branch are electrically connected to the ground plate via the first feeding structure.