Radially Offset Antenna Mounting Pipe for RF Interference Reduction
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Solution Overview
Problem
Current monopole antenna platforms experience RF signal interference between active and passive antennas due to their separate mounting planes, and there is a need for alternative mounting solutions to reduce this interference and load weight.
Innovation Solution
The use of radially offset mounting members that position active antenna units and passive antennas on the same plane, reducing interference by aligning their front surfaces and allowing closer proximity to the sector frame, thereby decreasing load weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If active antenna units and passive antennas are mounted on separate horizontal members at different planes, then the mounting structure is simple and easy to install, but RF signal interference occurs between the antennas
Solution Approach 1:
The mounting pipe transitions from a linear configuration to a radially offset configuration with perpendicular segments, changing the spatial dimension of antenna placement. This allows active and passive antennas to be positioned on the same radial plane rather than at different vertical planes, eliminating RF interference while maintaining installation simplicity through modular pipe sections.
Solution Approach 2:
Different segments of the mounting pipe serve different functions: the first linear segment mounts active antenna units, the radially offset segment provides spacing, and the second linear segment mounts passive antennas. This local differentiation optimizes each antenna's position relative to the sector frame while maintaining overall system simplicity.
2Ease of operation
If active antenna units are mounted behind the sector frame on linear mounting pipes, then the installation is straightforward, but the load weight on the platform assembly increases
Solution Approach 1:
The radially offset mounting pipe configuration repositions active antenna units from a vertical arrangement behind the sector frame to a radial arrangement extending outward. This dimensional change allows antennas to be mounted closer to the optimal radiation position while distributing weight more efficiently across the platform structure.
Solution Approach 2:
The mounting pipe structure is designed as a modular template that can be replicated for different antenna configurations. The radially offset design serves as a standardized solution that balances ease of installation with weight optimization, allowing the same mounting approach to be applied consistently across multiple platform assemblies.
3Device complexity
If active and passive antennas are positioned at different radial distances from the sector frame, then mounting is simplified, but RF signal interference increases due to plane separation
Solution Approach 1:
The solution maintains different radial distances for active and passive antennas while introducing a radial offset dimension. The perpendicular segment creates a new spatial relationship where antennas remain at different radial positions but share the same radial plane, eliminating interference without requiring complex three-dimensional mounting arrangements.
Solution Approach 2:
The mounting pipe employs an asymmetric radially offset configuration rather than a symmetric linear arrangement. This asymmetric design allows optimal positioning of different antenna types at different radial distances while maintaining co-planarity, achieving both mounting simplicity and RF interference reduction through intentional geometric asymmetry.
Data Source
AI summary
The present disclosure describes a mounting pipe assembly. The mounting pipe assembly including an active antenna unit having an antenna and a radio mounted behind the antenna, and a radially offset mounting pipe. The mounting pipe having a first linear segment radially offset from a second linear segment by a transition segment and is configured to mirror a rear profile of the active antenna units. The active antenna unit is mounted to the radially offset mounting pipe via a plurality of mounting brackets. Related platform assemblies are also described herein.