Circular MIMO Antenna Array Radial Sector Design
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Solution Overview
Problem
Existing MIMO implementations in wireless communication devices face space constraints, making it difficult to substitute non-MIMO multiple radio access points with MIMO multiple radio access points without significant spatial adjustments.
Innovation Solution
A wireless local area network antenna array with a circular housing and radial sectors, each equipped with multiple MIMO antennas, and an RF sub-system with orthogonal antenna PCBs providing 360-degree coverage, allowing for efficient implementation of MIMO in multiple radio access points without significant space constraints.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple antennas are used for MIMO implementation, then reception efficiency and throughput are improved, but space requirements and device complexity increase
Solution Approach 1:
The antenna system is divided into multiple antenna elements arranged in specific geometric patterns (circular, rectangular, triangular arrays). Each antenna element operates as an independent MIMO stream, allowing the system to achieve high throughput through spatial multiplexing while maintaining manageable complexity through modular segmentation of the antenna structure.
Solution Approach 2:
The patent transitions from traditional linear or planar antenna arrangements to three-dimensional spatial configurations, including circular arrays and multi-layer rectangular grids. This dimensional expansion allows multiple antennas to be packed more efficiently in space, increasing the number of antenna elements without proportionally increasing the device's footprint, thus improving throughput while controlling device complexity.
2Reliability
If multiple antennas are used for MIMO implementation, then reception efficiency is improved, but space on the access point increases
Solution Approach 1:
The antenna elements are nested within a compact housing structure that contains multiple radial sectors. Each sector can accommodate antenna elements in a nested arrangement, allowing multiple antennas to be positioned in three-dimensional space without requiring proportional increases in the device's external dimensions. This nesting approach enables efficient space utilization while maintaining high reception efficiency through multiple MIMO streams.
Solution Approach 2:
The patent employs three-dimensional antenna configurations including vertical stacking and radial arrangements that utilize depth and angular separation rather than only horizontal expansion. By distributing antenna elements across multiple dimensions (height, radius, angle), the system achieves high reception efficiency with a compact form factor, avoiding significant increases in the access point's overall footprint.
3Object-affected harmful factors
If access points are spaced apart to reduce interference, then channel interference is reduced, but coverage area decreases
Solution Approach 1:
The antenna system divides the coverage space into multiple radial sectors, each handled by specific antenna elements. This segmentation allows the access point to serve multiple directional zones simultaneously, effectively increasing coverage area without requiring additional access points. The sectorized approach also enables better interference management by directing signals spatially, reducing co-channel interference between users in different sectors.
Solution Approach 2:
The MIMO antenna system provides dynamic beamforming and spatial multiplexing capabilities that adapt to real-time channel conditions. By dynamically adjusting signal directions and spatial streams, the system can serve multiple users simultaneously in different spatial zones, effectively expanding coverage area while maintaining low interference levels through adaptive spatial separation rather than fixed geographic spacing of access points.
Data Source
AI summary
A wireless local area network (“WLAN”) antenna array (“WLANAA”) includes a circular housing having a plurality of radial sectors and a plurality of primary antenna elements configured as Multiple-Input, Multiple-Output (MIMO) antennas. Each primary antenna element, which includes multiple antennas connected to a single radio, being positioned within a radial sector of the plurality of radial sectors.