Base Station Antenna Phase Shifter Assembly Without Cables
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Solution Overview
Problem
Conventional base station antennas face challenges in achieving high integration and miniaturization due to complex feed networks and cable-based connections between phase shifters and calibration devices, which occupy space, increase installation time, and costs.
Innovation Solution
The phase shifter and calibration device are integrated without direct cabled connections, utilizing angled or perpendicular mounting and conductive elements like bent trace segments and welding for electrical connection, eliminating the need for cables.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If cable-based connections are used between phase shifters and calibration devices, then electrical connection is achieved, but device complexity and space occupation increase
Solution Approach 1:
The patent merges the phase shifter and calibration device into a single integrated unit, eliminating the need for separate cable connections. The phase shifter is mounted directly on the calibration device substrate, with trace segments providing electrical connection between components, thereby reducing connection complexity while maintaining reliable electrical connectivity.
Solution Approach 2:
The patent introduces trace segments as intermediary conductive elements that replace traditional cables. These trace segments are formed on the substrate and serve as the electrical connection medium between the phase shifter and calibration device, reducing overall device complexity while ensuring stable electrical connection.
2Volume of moving object
If integrated mounting is used without cables, then space usage is reduced, but manufacturing precision requirements increase
Solution Approach 1:
The patent employs angled mounting (e.g., 45 degrees or perpendicular) of the phase shifter relative to the calibration device substrate. This dimensional change in mounting orientation allows for compact space utilization while providing sufficient clearance for manufacturing tolerances and trace segment routing, thus reducing overall assembly volume without excessively increasing precision requirements.
3Adaptability or versatility
If multiple frequency bands and RF ports are integrated, then communication capability is improved, but feed network complexity increases
Solution Approach 1:
The integrated calibration device and phase shifter assembly is designed to support multiple frequency bands and RF ports through a unified structure. The common substrate and standardized trace segment connections enable the same hardware platform to handle diverse communication requirements, improving frequency band adaptability while avoiding the need for separate feed networks for each band.
Data Source
AI summary
An assembly for a base station antenna includes a calibration device and at least one phase shifter mounted on the calibration device. The at least one phase shifter is electrically connected to the calibration device without a cable. The phase shifter may be mounted on the calibration device at an angle (e.g., perpendicular to the calibration device).