Compact Phase Shifter Layout for Multi-Band Antenna Space Savings
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Solution Overview
Problem
Existing phase shifters are not space-efficient, leading to increased size and weight in multi-band antenna devices, which complicates beam adjustment and increases manufacturing costs, while also being cumbersome for maintenance and repair.
Innovation Solution
A miniaturized phase shifter design featuring a fixed unit with a base and a moving unit that includes multiple moving strips on sub-boards, allowing for compact and lightweight construction, with a guide bracket to manage movement and reduce installation space, enabling efficient phase adjustment and simplified assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a conventional phase shifter with fixed and moving boards on one side is used, then the phase shifting function is achieved, but the device occupies excessive space and increases weight
Solution Approach 1:
The phase shifter is divided into separate fixed boards and moving boards that can be independently positioned on opposite sides of the signal transmission path. This segmentation allows each board to be optimized for its specific function while reducing the overall volume compared to a single integrated structure.
Solution Approach 2:
The design transitions from a single-sided configuration to a multi-dimensional arrangement where fixed and moving boards are positioned on opposite sides of the transmission path. This spatial reorganization reduces the volume occupied by eliminating the need for one-sided expansion, while maintaining full phase adjustment capability through the distributed board structure.
2Adaptability or versatility
If multiple phase shifters are used for multi-band frequency support, then various frequency bands can be adjusted individually, but the device size and weight increase
Solution Approach 1:
Each phase shifter module using the fixed and moving board configuration serves multiple frequency bands simultaneously through its distributed structure. This universal design allows a single module to replace what would traditionally require multiple separate phase shifters, thereby reducing the overall weight while maintaining multi-band adaptability.
3Device complexity
If fixed and moving boards are provided only on one side, then the structure is simplified, but space efficiency is reduced
Solution Approach 1:
Instead of concentrating all boards on one side, the design inverts the conventional approach by placing fixed and moving boards on opposite sides of the transmission path. This inversion maintains structural simplicity through standardized modular units while dramatically improving space efficiency by utilizing the available volume in a distributed three-dimensional arrangement.
Data Source
AI summary
According to an embodiment of the present disclosure, a phase shifter comprising: a fixed unit including a base and a first fixed board disposed on one surface of the base; a first moving unit movable along a first direction on one surface of the first fixed board, the first moving unit including a first moving board facing the first fixed board; and a guide bracket fixed to one side of the fixed unit, the guide bracket configured to guide movement of the first moving unit along a first direction.