Base Station Antenna Radome Support Positioning on a Bent Reflector
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Solution Overview
Problem
Base station antennas face challenges in mounting radome supports efficiently and reliably due to design errors and manufacturing tolerances, affecting the stability and accuracy of the antenna system in harsh environments.
Innovation Solution
The base station antenna design includes a reflector with a body portion and a bent portion, featuring precise first and second support limiting portions that mate with corresponding limiting portions on the radome support to securely position it in width and forward-backward directions, enhancing stability and preventing toppling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional mounting methods are used for radome supports, then the antenna system can be assembled, but the mounting stability deteriorates due to design errors and manufacturing tolerances
Solution Approach 1:
The patent applies beforehand cushioning by designing limiting portions with complementary geometries (e.g., rectangular limiting portions on the radome support that mate with corresponding limiting portions on the reflector) to preemptively compensate for manufacturing tolerances and assembly errors. This pre-designed constraint system ensures stable mounting positions even when manufacturing precision varies, preventing instability before it occurs.
2Reliability
If additional radome supports are added to prevent toppling, then the reliability improves, but the device complexity increases
Solution Approach 1:
The patent merges the radome support structure with the reflector assembly by integrating limiting portions directly into both components. Instead of adding separate mounting brackets or fastening mechanisms, the support and reflector are designed with complementary limiting portions that mate together, combining multiple functions into a unified structure that reduces overall complexity while maintaining reliability.
Solution Approach 2:
The limiting portions are designed to automatically align and mate together through their complementary geometries, allowing the radome support to self-position and self-lock onto the reflector without requiring additional alignment procedures or complex fastening operations. This self-service mechanism simplifies the mounting process while ensuring stable installation.
3Reliability
If the radome support is firmly secured to prevent toppling, then the reliability improves, but the ease of manufacture decreases due to tighter tolerances
Solution Approach 1:
The patent designs the limiting portions with built-in tolerance compensation that cushions against manufacturing variations. The complementary geometries (such as rectangular profiles with clearance gaps) are预先 designed to accommodate expected manufacturing tolerances, allowing assembly without requiring ultra-precise machining while still achieving firm, stable mounting that prevents radome toppling.
Data Source
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AI summary
The present disclosure relates to a base station antenna. The base station antenna comprises: a reflector and radome supports mounted on the reflector, wherein the reflector comprises a body portion and a bent portion, the bent portion including at least a first section that is connected to and bent relative to the body portion of the reflector, wherein one or more arrays of radiating elements are mounted on or above the body portion of the reflector, wherein the radome support includes a support portion for supporting the radome and a mating portion for mating with the reflector, wherein a first support limiting portion is provided on the mating portion of the radome support, a first reflector limiting portion mating with the first support limiting portion is provided on the body portion of the reflector, and the first support limiting portion mates with the first reflector limiting portion to limit at least the position of the radome support in a width direction H. This enables the radome supports to be mounted on the reflector at an efficient and reliable manner.