Dual-Dipole Antenna Layout for End-Fire Gain and Wider Bandwidth
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Solution Overview
Problem
Existing antenna designs fail to efficiently enhance end-fire performance and provide dual-frequency performance for wide bandwidth communication.
Innovation Solution
The antenna element comprises a substrate with a first and second vertically polarized dipole antenna disposed on the focus side of a parabolic reflector, enhancing end-fire performance and enabling dual-frequency operation by adjusting branch lengths and using differential feeding structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a single dipole antenna with parabolic reflector is used, then end-fire performance is improved, but bandwidth is limited
Solution Approach 1:
The single dipole antenna is segmented into two dipole antennas with different arm lengths, allowing each antenna to resonate at different frequencies. This segmentation enables the antenna system to achieve dual-frequency operation and wider bandwidth while maintaining end-fire performance through the parabolic reflector configuration
Solution Approach 2:
The antenna system is designed to perform multiple functions: it achieves both end-fire radiation performance and wide bandwidth coverage. By using two dipoles with different lengths fed by a differential feeding structure, the system can operate at multiple frequency bands simultaneously, making it versatile for different communication scenarios
2Adaptability or versatility
If dual-frequency dipole antennas are used to expand bandwidth, then communication performance is improved, but device complexity increases
Solution Approach 1:
Two dipole antennas with different resonant frequencies are merged into a single integrated antenna system. They share the same parabolic reflector and are fed by a unified differential feeding structure, reducing overall system complexity compared to having separate antenna systems for different frequencies
Solution Approach 2:
The patent introduces frequency dimensionality by using dipoles of different lengths to operate at different frequency bands. This allows the antenna system to access multiple frequency dimensions simultaneously while maintaining a planar two-dimensional structure, avoiding the need for three-dimensional complex structures
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 achieves high end-fire performance and wider bandwidth communication, suitable for 5G millimeter-wave bands, with improved gain and reduced back radiation.
Implementation Method 1
a reflector 3, wherein the reflector 3 comprises several reflection pillars 31, and the several reflection pillars 31 are arranged in the substrate 1 at intervals along a parabola
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The present disclosure provides an antenna element and an electronic device, where the antenna element includes: a substrate, having a ground plate; a first 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 second vertically polarized dipole antenna, including a third antenna branch and a fourth antenna branch, where the third antenna branch and the fourth antenna branch are disposed in the substrate at an interval; a reflector, including several reflection pillars, where the several reflection pillars are arranged in the substrate at intervals along a parabola; and a first feeding structure, electrically connecting each of the first antenna branch, the second antenna branch, the third antenna branch, and the fourth antenna branch to the ground plate.