Adaptive MIMO Antenna Array Shape Factor Adjustment
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Solution Overview
Problem
Existing large-scale MIMO base stations face challenges in deploying a sufficient number of antennas due to shape factor limitations and carrier frequency constraints, which restricts spectral efficiency and data transmission in 5G wireless communication systems.
Innovation Solution
A 5G-oriented multidimensional adaptive MIMO system employing a two-dimensional planar array structure with a rotary table and broadband vector signal generator to dynamically adjust antenna radiating modes by controlling weight vectors, allowing for flexible antenna element positioning and adaptive beamforming.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional uniform linear array is used, then the system structure is simple, but the shape factor flexibility is limited and spatial information is insufficient
Solution Approach 1:
The patent transitions from a one-dimensional uniform linear array to a two-dimensional planar array structure. This dimensional expansion provides flexibility in both horizontal and vertical directions, enabling diverse shape factor configurations while maintaining systematic organization through the planar geometry
2Productivity
If the number of antennas is increased to improve spectral efficiency, then data transmission efficiency improves, but the base station shape factor constraints and carrier frequency limitations are exceeded
Solution Approach 1:
By expanding to a two-dimensional planar array, the system accommodates a larger number of antenna elements within the same physical footprint by utilizing both horizontal and vertical dimensions. This allows increased spectral efficiency and data transmission capacity without proportionally increasing the base station's shape factor constraints
Solution Approach 2:
The patent employs dynamic weight vector adjustment to change the radiating characteristics of antenna ports. By modifying the amplitude and phase parameters of individual antenna elements through weight vectors, the system adapts its radiation pattern to maximize data transmission efficiency while respecting physical shape factor limitations
3Adaptability or versatility
If antenna elements are fixed in position, then the system structure is stable, but the radiating modes cannot be dynamically adjusted
Solution Approach 1:
The patent dynamically adjusts radiating modes by changing the weight vector parameters applied to each antenna element. These weight vectors control the amplitude and phase of signals from individual elements, enabling flexible beamforming and radiation pattern adjustment without physically moving antenna elements, thus maintaining structural stability while achieving adaptability
Data Source
AI summary
A 5G-oriented multidimensional adaptive MIMO system including a transmitting antenna array, a first rotary table, a broadband vector signal generator, a receiving antenna array, a second rotary table, a broadband vector signal analyzer and a data acquisition terminal is provided. The broadband vector signal generator and the broadband vector signal analyzer are respectively connected with the transmitting antenna array and the receiving antenna array. The data acquisition terminal is connected with the broadband vector signal generator and the broadband vector signal analyzer. In addition, a method for adjusting radiating modes of antenna ports by using the 5G-oriented multidimensional adaptive MIMO system is also provided.