Miniaturized 5G Antenna Element Design for High-Gain Performance
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Solution Overview
Problem
Existing 5G antenna elements are bulky, costly, and inefficient, failing to meet the requirements of miniaturization and high-gain performance needed for diverse 5G base station applications.
Innovation Solution
A high-gain miniaturized antenna element design featuring a radiation structure with a horizontally arranged first radiator and a second radiator formed by bending the outer edge downward, along with a feed support structure comprising vertically arranged feed support parts, which reduces size, weight, and loss while maintaining resonance frequency, incorporating slots and gaps for adjustment and miniaturization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional dipole antenna element with plate structure is used, then the antenna can provide radiation surface on circuit board, but the antenna element has relatively high cost, heavyweight, large space occupation, and large loss
Solution Approach 1:
The patent replaces the traditional rigid plate structure with a flexible strip structure that has comparable or superior radiation performance. The strip structure includes a feed support part and a radiator connected thereto, forming a lightweight alternative to heavy plate-based dipole antennas while maintaining effective radiation surfaces.
2Reliability
If a traditional dipole antenna element with plate structure is used, then the antenna can provide radiation surface on circuit board, but the antenna element occupies large space and is not beneficial to miniaturize the base station antenna
Solution Approach 1:
The antenna element is segmented into distinct functional parts: a feed support part and a radiator connected thereto. This segmentation allows for optimized space utilization and miniaturization while maintaining radiation performance. The strip structure can be configured in various shapes (U-shape, zigzag, etc.) to fit compact spaces.
Solution Approach 2:
The patent transitions from a two-dimensional plate structure to a three-dimensional strip structure that can be folded, bent, or configured in multiple spatial arrangements. This dimensional change enables compact packaging and miniaturization while preserving the effective radiation area through optimized geometric configurations.
3Reliability
If a traditional dipole antenna element with plate structure is used, then the antenna can provide radiation surface on circuit board, but the antenna element has relatively high cost
Solution Approach 1:
The strip structure can be manufactured using flexible printed circuit board (FPCB) technology or thin metal strips, which are more cost-effective than rigid plate structures. The simplified geometry and reduced material requirements lower manufacturing costs while maintaining radiation performance.
4Reliability
If a traditional dipole antenna element with plate structure is used, then the antenna can provide radiation surface on circuit board, but the antenna element has large loss
Solution Approach 1:
The strip structure with optimized geometry and configuration reduces resistive losses and improves radiation efficiency compared to traditional plate structures. The flexible strip design allows for better current distribution and reduced edge effects, minimizing energy loss.
Data Source
AI summary
A high-gain miniaturized antenna element includes a radiation structure and a feed support structure. The radiation structure includes a first radiator and a second radiator. The first radiator is arranged horizontally. The second radiator is formed by bending an outer edge of the first radiator downwardly. The feed support structure includes a plurality of feed support parts arranged vertically. Each feed support part is a downward extension of the first radiator.