Antenna Mounting Structure for Nested RF and Baseband Units
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Solution Overview
Problem
The separate configuration of RF and baseband units in point-to-point wireless apparatuses poses challenges such as installation space constraints and longer IF cable lengths, which can increase failure rates and maintenance complexity.
Innovation Solution
A mounting structure that supports both units adjacent to an antenna, with the RF unit disposed in a recessed region of the baseband unit's enclosure, reducing overall volume and allowing easy replacement and polarization adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If RF unit and baseband unit are configured separately, then maintenance accessibility and polarization adjustment are improved, but installation space requirements increase
Solution Approach 1:
The RF unit is disposed within a recessed region of the baseband unit's enclosure, allowing one unit to be nested within the structure of the other. This nesting arrangement enables separate configuration for maintenance accessibility while minimizing the overall installation space footprint by utilizing the recessed region rather than requiring additional external space.
2Area of stationary object
If RF unit and baseband unit are disposed adjacently, then installation space is minimized, but IF cable length increases
Solution Approach 1:
By nesting the RF unit within the recessed region of the baseband unit's enclosure, the physical distance between the two units is minimized. This arrangement reduces the IF cable length required to connect them compared to external adjacent disposal, while still maintaining the benefits of separate configuration for maintenance and polarization adjustment.
3Volume of moving object
If RF unit is placed in recessed region, then overall volume is reduced, but device complexity increases
Solution Approach 1:
The recessed region provides a pre-formed cavity within the baseband unit's enclosure that naturally accommodates the RF unit. This nesting structure reduces the overall volume by utilizing existing space rather than adding external components, while the complexity is managed through the modular design that allows independent installation and removal of the RF unit within the recessed region.
Data Source
AI summary
A mounting base (14) is fixed to an antenna (13) or an antenna bracket (15) for supporting the antenna (13). A baseband unit (11) and an RF unit (12) are fixed to the mounting base (14). The baseband unit (11) fixed to the mounting base (14) is disposed to face a back part (132) of the antenna (13) and to form a space between the back part (132) and the first enclosure (111). The RF unit (12) fixed to the mounting base (14) is disposed in the space formed between the back part (132) of the antenna (13) and the baseband unit (11) and is coupled to a waveguide flange (132) of the antenna (13). Thus, for example, in a configuration of a point-to-point wireless apparatus in which an RF unit and a baseband unit are separated, restrictions on installation space of the apparatus can be facilitated.