Antenna Mounting Bracket With Differential Screw Fine Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing antenna mounting brackets struggle with precise alignment of highly directive microwave radio link antennas, especially as carrier frequencies increase, leading to reduced signal-to-noise ratio (SNR) due to narrower beam widths and increased alignment demands.
Innovation Solution
An antenna mounting bracket with a differential screw mechanism that allows for precise fine-tuning of antenna alignment, combining a primary pivoting angle adjustment mechanism for coarse adjustments with a secondary differential screw mechanism for fine adjustments, ensuring high mechanical robustness and ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a conventional mounting bracket is used, then the antenna can be mounted to the fixed structure, but the alignment precision is insufficient for highly directive antennas with narrow beam widths
Solution Approach 1:
The mounting bracket is divided into a fixed part and a pivotable part that can be independently adjusted. The alignment function is segmented from the mounting function, allowing precise angular adjustment of the antenna while maintaining a simple overall bracket structure. This segmentation enables high alignment precision without requiring the entire bracket to be complex.
2Productivity
If the carrier frequency is increased to improve data transmission capacity, then the bandwidth is increased, but the beam width becomes narrower requiring higher alignment accuracy
Solution Approach 1:
The mounting bracket incorporates a pivotable part that can be dynamically adjusted to change the pointing direction of the antenna. This dynamic adjustment capability allows technicians to precisely align the narrow beam with the target antenna, compensating for the reduced beam width caused by higher carrier frequencies. The dynamic pivoting mechanism ensures that alignment accuracy requirements are met despite the narrower beam width.
3Measurement precision
If manual alignment is performed by a technician climbing the mast, then the antenna can be aligned, but the process becomes increasingly challenging and time-consuming with higher accuracy demands
Solution Approach 1:
The mounting bracket is pre-configured with a pivotable part and adjustment mechanisms that enable straightforward alignment procedures. The bracket design incorporates features such as clear angular markings and intuitive adjustment controls that guide the technician through the alignment process, reducing the time required to achieve high precision alignment. The preliminary design of the adjustment mechanism ensures that fine-tuning can be performed efficiently without requiring extensive technician effort or time.
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
The differential screw mechanism enables high-accuracy antenna alignment with reduced effort, maintaining alignment precision even after locking, thus enhancing the SNR of microwave radio links and simplifying the alignment process for technicians.
Implementation Method 1
a pivoting angle of the pivotable part relative to the fixed part is arranged to be controlled by an alignment member comprising a differential screw mechanism
Data Source
AI summary
An antenna mounting bracket for pivotably mounting a directional antenna to a fixed structure, the antenna mounting bracket comprising a fixed part arranged to be attached to the fixed structure and a pivotable part arranged to hold the directional antenna, wherein the pivotable part is pivotably attached to the fixed part about a first pivoting axis A, and where a pivoting angle of the pivotable part relative to the fixed part is arranged to be controlled by an alignment member comprising a differential screw mechanism.