Multi-Sector Antenna Structure Reducing Enclosure Count
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Solution Overview
Problem
Conventional multi-sector antenna systems require multiple structural enclosures to achieve spatial diversity, leading to increased costs and complex installations due to the need for large spatial separation of antenna arrays, which is impractical for integrated structures.
Innovation Solution
A multi-sector cell-site antenna system with dual-polarized antennas arranged in a single enclosure, utilizing antenna cross-connects to serve adjacent sectors from a common location, providing both redundancy and diversity without the need for extensive spatial separation, and incorporating a pivot mechanism to adjust angles based on sector configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple structural enclosures are used to achieve spatial diversity, then signal quality and diversity are improved, but device complexity and installation cost increase
Solution Approach 1:
The patent combines multiple antenna arrays that would traditionally require separate enclosures into a single integrated enclosure. The system houses first and second antenna arrays, each serving different sectors, within one shared enclosure structure. This merging approach maintains the diversity function while reducing the total number of enclosures needed, directly addressing the contradiction between reliability and device complexity.
Solution Approach 2:
The single enclosure serves multiple functions by housing different antenna arrays that serve different sectors. The enclosure provides protection and support for both the first antenna array (serving first sector) and the second antenna array (serving second sector), making it a multi-functional structure that replaces what would traditionally require multiple specialized enclosures.
2Reliability
If large spatial separation of antenna arrays is implemented, then spatial diversity is achieved, but installation complexity and cost increase
Solution Approach 1:
The patent merges multiple antenna arrays into a single enclosure structure, eliminating the need for large spatial separations between enclosures. The first and second antenna arrays are housed together in one enclosure, allowing them to be installed as a single unit rather than requiring separate installations at widely spaced locations, thus reducing installation complexity while maintaining diversity functionality.
3Reliability
If multiple structural enclosures are used, then redundancy is provided, but wind loading and structural requirements increase
Solution Approach 1:
The patent combines multiple antenna arrays into a single enclosure, reducing the total surface area exposed to wind forces compared to having multiple separate enclosures. The shared enclosure structure experiences wind loading on its external surfaces, but this is less than the cumulative wind loading on multiple separate enclosures, thereby reducing structural requirements while maintaining redundancy through the multiple antenna arrays housed within.
Data Source
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AI summary
A multiple sector cell-site antenna includes a first antenna oriented to serve a first sector, the first antenna electrically connected to a first transceiver group; a second antenna oriented to serve a second sector adjacent to the first sector, the second antenna electrically connected to the first transceiver group; and a single enclosure covering both the first antenna and the second antenna. By providing at least two multiple sector cell-site antennas in a system, the total number of enclosures is reduced while providing redundancy and diversity within the cells.