Manual Actuating Device for Base Station Antenna Phase Shifter
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Solution Overview
Problem
Existing manual actuating devices for phase shifters in base station antennas are complex, bulky, and require significant installation space due to their numerous components.
Innovation Solution
A manual actuating device with a simple and compact structure, utilizing a support module with a lead screw drive and an actuator rod, where the lead screw is rotatably supported and manually operated, reducing the number of parts and installation space needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an electric actuating device is used to actuate the phase shifter, then the electrical tilt angles can be adjusted, but the structure becomes complicated, requiring a large number of parts and large installation space
Solution Approach 1:
The patent replaces the electric actuating device with a manual actuating device that uses a lead screw mechanism. The lead screw converts rotational motion of the operating part into linear motion of the actuator rod, providing a mechanically simple solution for adjusting the phase shifter's electrical tilt angles without requiring motors, sensors, or control electronics
Solution Approach 2:
The patent extracts and eliminates unnecessary components from the actuating system by using a lead screw mechanism that requires minimal parts. The support module provides stable mounting with fewer components, and the direct mechanical connection removes the need for complex transmission systems, thereby simplifying the overall structure while maintaining adjustment functionality
2Ease of operation
If an electric actuating device is used to actuate the phase shifter, then the electrical tilt angles can be adjusted, but the installation space required increases
Solution Approach 1:
The patent employs a compact nested arrangement where the lead screw is rotatably supported within the support module, and the actuator rod moves along the lead screw's axis. The manual operating part is positioned to engage with the lead screw's exposed end, creating a space-efficient configuration that fits within minimal installation space while providing full adjustment capability
Solution Approach 2:
The patent optimizes space utilization by arranging components along the lead screw's axial dimension rather than spreading them out in multiple directions. The actuator rod's linear movement along the lead screw's axis provides the necessary adjustment range in a compact footprint, effectively using the longitudinal dimension to minimize the overall installation area
3Device complexity
If a manual actuating device with lead screw drive is used, then the structure becomes simple and compact, but the manufacturing precision requirements increase
Solution Approach 1:
The patent optimizes the lead screw's pitch parameter to balance manufacturing precision requirements with adjustment range needs. By selecting an appropriate pitch value, the design achieves satisfactory positioning accuracy without requiring excessively tight manufacturing tolerances, thereby maintaining structural simplicity while meeting performance requirements
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 solution provides a lightweight, cost-effective, and easy-to-assemble manual actuating device that requires minimal space, enhancing manufacturing efficiency and reducing potential sources of passive intermodulation distortion.
Implementation Method 1
a lead screw drive having a lead screw and a nut. The lead screw is rotatably supported in the first receiving portion and the second receiving portion, and the nut is translationally movably mounted on the lead screw
Implementation Method 2
The first receiving portion may include a first bearing fixedly mounted in the first through hole for bearing the lead screw
Data Source
AI summary
The invention relates to a manual actuating device for a phase shifter of a base station antenna. The device includes a support module having an elongated base body and a first and a second receiving portion which protrude from the base body and are spaced apart in a longitudinal direction of the base body; and a lead screw drive having a lead screw and a nut. The lead screw is rotatably supported in the first and the second receiving portion, and the nut is translationally movably installed on the lead screw. The device also includes an actuator rod connected to the nut and configured to actuate the phase shifter; and a manual operating part connected with the lead screw and configured to manually operate the lead screw to rotate the lead screw. The actuating device is simple and compact in structure and is easy to manufacture and install.