RF Polarization Rotation Module for Antenna Interference Mitigation
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Solution Overview
Problem
Current wireless communication systems face interference from unexpected sources, leading to reduced performance, throughput, and increased traffic congestion, which existing solutions like additional communication nodes or antenna steering techniques do not adequately address.
Innovation Solution
The implementation of a radio frequency (RF) polarization shifting module/system (RPM) that rotates orthogonal signals' polarizations without affecting their orthogonality, using hybrid couplers and mechanically-adjustable dual simultaneous phase-shifting couplers to mitigate or avoid interference/passive intermodulation (PIM) by selectively extracting signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If additional communication nodes are added to address interference issues, then system coverage and capacity are improved, but device complexity and cost increase
Solution Approach 1:
The patent changes the polarization parameter of existing antenna elements to mitigate interference. By adjusting the polarization state (e.g., switching between vertical and horizontal polarization) of the same antenna elements, the system can avoid interferers without adding new communication nodes, thus improving productivity while maintaining device complexity at acceptable levels
2Object-affected harmful factors
If antenna steering techniques are used to avoid interferers, then interference mitigation is improved, but device complexity and operational constraints increase
Solution Approach 1:
Instead of mechanically steering antennas (which adds complexity), the patent changes the electromagnetic parameter of polarization. By electronically controlling the polarization state of fixed antenna elements, the system achieves interference mitigation through parameter modulation rather than physical movement, reducing device complexity while maintaining effectiveness
3Object-affected harmful factors
If polarization rotation is applied to mitigate interference, then signal-to-interference ratio is improved, but signal processing complexity increases
Solution Approach 1:
The patent replaces complex signal processing operations with simpler electromagnetic field manipulation. By using polarization-selective antenna elements and hybrid couplers to physically rotate or switch polarization states, the system achieves interference mitigation through electromagnetic field transformation rather than complex digital signal processing, thereby improving SINR while minimizing processing 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 enhances the signal-to-interference-plus-noise ratio (SINR) by effectively mitigating or avoiding interference, improving communication channel performance and reducing PIM-related issues in wireless communication systems.
Implementation Method 1
perform polarization rotation of signals to enable avoidance of interference
Implementation Method 2
mechanically-adjustable dual simultaneous phase-shifting couplers
Data Source
AI summary
Aspects of the subject disclosure may include, for example, receiving, by a radio frequency (RF) mechanical device, signals relating to one or more crossed-dipole radiating elements of an antenna system, performing, by the RF mechanical device, polarization rotation of the signals to derive output signals having polarizations that are rotated in a manner that mimics physical rotation of the one or more crossed-dipole radiating elements, and providing, by the RF mechanical device, the output signals to enable avoidance of interference. Other embodiments are disclosed.