Millimeter-Wave Antenna Array With Auxiliary Metal Elements for Gain
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Solution Overview
Problem
Current antenna arrays face challenges in achieving high radiation gain, especially for mobile devices operating in millimeter-wave frequency bands, which affects communication performance.
Innovation Solution
The design incorporates a configuration of antenna units with auxiliary metal elements that resonate with the antenna loops, optimizing the distance and shape to enhance radiation gain, and includes a dielectric substrate and ground metal plane to support wideband operations across multiple frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If conventional antenna arrays are used for millimeter-wave operations, then the device can achieve basic wireless communication functionality, but the radiation gain is insufficient and communication performance is limited
Solution Approach 1:
The antenna array is divided into multiple antenna units (first, second, third, and fourth antenna units), each comprising metal loops and feeding elements. This segmentation allows each unit to contribute to the overall radiation gain while maintaining individual optimization for millimeter-wave operations, thereby improving total power output and communication reliability
Solution Approach 2:
Auxiliary metal elements (first, second, third, and fourth auxiliary metal elements) are introduced as intermediary structures adjacent to each antenna unit. These auxiliary elements act as mediators that enhance the radiation gain of the antenna array by creating additional radiation paths and improving the overall electromagnetic field distribution, directly addressing the insufficient gain problem
2Adaptability or versatility
If antenna arrays are designed for wideband operations across multiple frequency bands, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
Each antenna unit is designed with metal loops and feeding elements that can operate across multiple frequency bands (first and second frequency bands of millimeter-wave operations). The auxiliary metal elements are configured to resonate with the antenna loops at different frequencies, enabling a single antenna unit structure to serve multiple functions across wide bandwidth, thus improving adaptability without proportionally increasing complexity
Solution Approach 2:
The antenna array utilizes parameter changes in the auxiliary metal elements (such as their distance from and overlap with the antenna loops) to achieve resonance at different frequency bands. By adjusting these geometric parameters, the same basic structure can be tuned for wideband operations, maintaining structural simplicity while enhancing versatility
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 significantly increases radiation gain, supports wideband operations, and maintains performance even when covered by nonconductive housing or blocked by an antenna window, making it suitable for next-generation 5G communication.
Implementation Method 1
The first auxiliary metal element, the second auxiliary metal element, the third auxiliary metal element, and the fourth auxiliary metal element are configured to increase the radiation gain of the antenna array
Data Source
AI summary
An antenna array includes a first antenna unit, a second antenna unit, a third antenna unit, a fourth antenna unit, a first auxiliary metal element, a second auxiliary metal element, a third auxiliary metal element, and a fourth auxiliary metal element. The first auxiliary metal element is adjacent to the first antenna unit. The second auxiliary metal element is adjacent to the second antenna unit. The third auxiliary metal element is adjacent to the third antenna unit. The fourth auxiliary metal element is adjacent to the fourth antenna unit. The first auxiliary metal element, the second auxiliary metal element, the third auxiliary metal element, and the fourth auxiliary metal element are configured to increase the radiation gain of the antenna array.