Dual-Polarized 5G Base Station Antenna with Multimode Resonance
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Solution Overview
Problem
Existing 5G broadband base station antennas face challenges in covering multiple frequency bands without increasing size, as traditional antennas require larger dimensions to fully cover the allocated frequency bands, contradicting the need to save site resources.
Innovation Solution
A 5G broadband dual-polarized base station antenna with a multimode resonance structure, comprising a main radiating unit, feed balun set, and metal reflecting plate, where the feed balun set provides balanced current and the resonance structures control resonance points at different frequencies, allowing for a wide operation bandwidth by adjusting antenna structure parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the size of traditional broadband base station antennas is increased to fully cover 5G frequency bands, then the frequency band coverage is improved, but the site resources are consumed
Solution Approach 1:
The antenna is divided into multiple independent resonance structures (first resonance structure, second resonance structure, third resonance structure), each responsible for different frequency bands. This segmentation allows each structure to be optimized for specific frequency ranges while collectively covering the entire 5G spectrum, avoiding the need for a single large antenna structure.
Solution Approach 2:
The patent transitions from traditional single-resonance antenna design to multi-resonance structure design, adding the dimension of frequency diversity. By incorporating multiple resonance structures with different resonant frequencies, the antenna achieves broadband coverage without proportionally increasing physical dimensions, effectively utilizing the frequency dimension to expand coverage capability.
2Adaptability or versatility
If multiple antennas are used to cover different 5G frequency bands, then the frequency band coverage is improved, but the site resources are consumed
Solution Approach 1:
The patent merges multiple resonance structures (first, second, and third resonance structures) into a single integrated antenna system. These structures work together to cover different frequency bands, replacing what would traditionally require multiple separate antennas. The merged structure achieves the same frequency coverage while reducing the quantity of antenna units needed at the base station site.
Solution Approach 2:
The antenna design achieves multi-functionality by incorporating resonance structures that operate across multiple 5G frequency bands simultaneously. The single antenna system performs the functions of multiple specialized antennas, providing universal coverage for China Mobile, China Telecom, and China Unicom's 5G bands without requiring separate antenna installations for each operator or frequency range.
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 antenna achieves broadband characteristics by combining three resonance points, enabling full coverage of 5G frequency bands with a single antenna while maintaining compact size, thus optimizing site resource usage.
Implementation Method 1
the first resonance structure is configured to control a resonance point at a high frequency, and the third resonance structure is configured to control a resonance point at a low frequency
Data Source
AI summary
The present disclosure provides a 5th generation (5G) broadband dual-polarized base station antenna of a multimode resonance structure, including: a first resonance structure, a main radiating unit, a feed balun set, and a metal reflecting plate, where the feed balun set is disposed on the metal reflecting plate, the main radiating unit is disposed on a first feed balun and a second feed balun, and the first resonance structure is disposed on the main radiating unit; the main radiating unit includes a second resonance structure and a third resonance structure, the first resonance structure is configured to control a resonance point at a high frequency, and the third resonance structure is configured to control a resonance point at a low frequency; and the feed balun set is configured to provide a balance current for the main radiating unit and the first resonance structure.