Motorized Polarization Shifter for 5G Interference Mitigation
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Solution Overview
Problem
Current antenna designs face challenges in mitigating or avoiding interference/passive intermodulation (PIM) in 5G networks, particularly due to the increasing complexity of multiple wireless services and bands coexisting without impacting each other, which affects signal quality and performance.
Innovation Solution
The implementation of polarization shifting devices and systems that adjust the physical position or electronic processing of radiating elements in antennas to selectively mitigate or avoid interference/PIM by rotating or shifting radiating elements, altering signal phases and amplitudes, or modifying structural properties to minimize interference reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple wireless services and bands are deployed to increase network capacity and throughput, then network performance is improved, but interference and passive intermodulation (PIM) increase
Solution Approach 1:
The patent changes the polarization parameter of radiating elements dynamically. By adjusting polarization states (e.g., from vertical to horizontal, or between different slant angles), the system can mitigate interference and PIM effects while maintaining multiple wireless services and bands, thus resolving the contradiction between network capacity and interference levels
Solution Approach 2:
The patent implements dynamic polarization adjustment where radiating elements can change their polarization states in real-time based on interference conditions. This dynamic adaptation allows the system to maintain high network capacity while actively managing and reducing interference and PIM through continuous parameter optimization
2Reliability
If polarization shifting is implemented to mitigate interference, then signal quality is improved, but device complexity increases
Solution Approach 1:
The patent makes radiating elements multi-functional by enabling them to operate in multiple polarization states. Each radiating element can function in vertical, horizontal, or slant polarizations, allowing a single antenna system to handle multiple wireless services and interference mitigation scenarios without requiring separate dedicated antennas for each function
Solution Approach 2:
The patent combines interference mitigation functionality directly into the radiating elements themselves rather than adding separate interference reduction systems. By integrating polarization shifting capability within the existing antenna structure, the system achieves signal quality improvement while minimizing additional device complexity
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 approach effectively reduces the impact of interference/PIM, improving uplink performance and coverage by optimizing signal reception and transmission patterns, thereby enhancing overall antenna efficiency in 5G networks.
Implementation Method 1
polarization shifting devices and systems that adjust the physical position or electronic processing of radiating elements in antennas to selectively mitigate or avoid interference/PIM by rotating or shifting radiating elements, altering signal phases and amplitudes
Data Source
AI summary
Aspects of the subject disclosure may include, for example, a motorized drive assembly that includes a motor and a drive assembly, where the drive assembly has an axle configured to be disposed through a rotatable substrate of a polarization shifter for a dual-polarized radiating element, the axle being further configured to fasten, at a first end of the axle, to a support structure of the polarization shifter, wherein, when the motorized drive assembly is assembled to the polarization shifter, the motor is controllable to impart rotational forces, via movement of the axle, to the polarization shifter to effect polarization adjusting for the dual-polarized radiating element. Other embodiments are disclosed.