Feed Network Phase Shifter With Single-Sided Sliding Medium
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Solution Overview
Problem
The complex structure of feed networks in existing base station antennas leads to high costs, affecting the competitiveness of the antennas.
Innovation Solution
A simplified feed network design with accommodation cavities, transmission structures, supports, and phase shift media, allowing for adjustable positioning and reduced media usage, enhancing flexibility and reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If phase shift media are disposed on both sides of the transmission structure, then phase shift efficiency is improved, but structure complexity increases and costs increase
Solution Approach 1:
The patent extracts and removes one phase shift medium from the dual-sided configuration, keeping only one phase shift medium on one side of the transmission structure. This extraction reduces structural complexity and material costs while maintaining adequate phase shift efficiency through optimized single-sided placement.
2Ease of manufacture
If the bearing surface position is fixed, then manufacturing is simplified, but design flexibility is reduced
Solution Approach 1:
The patent introduces adjustability to the bearing surface position, allowing it to be dynamically repositioned along the transmission structure. This dynamic capability enables the bearing surface to adapt to different design requirements and performance optimizations while maintaining manufacturing feasibility through standardized adjustment mechanisms.
3Reliability
If more phase shift media are used, then phase shift performance is improved, but costs increase
Solution Approach 1:
The patent applies partial action by using only one phase shift medium instead of two, determining that single-sided placement provides sufficient phase shift performance for the application requirements. This partial implementation reduces material quantity and costs while avoiding the excessive use of materials.
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 design simplifies the structure, reduces costs, and improves adaptability to different working requirements while maintaining phase shift efficiency.
Implementation Method 1
a phase shift medium are disposed in each accommodation cavity... the phase shift medium is disposed between the transmission structure and one of inner walls of the accommodation cavity
Data Source
AI summary
Embodiments of this application provide a feed network. The feed network includes a housing, and at least one accommodation cavity is disposed in the housing. A transmission structure, a support, and a phase shift medium are disposed in each accommodation cavity. The support is located in the accommodation cavity, and the support is connected to at least one inner wall of the accommodation cavity. In a first direction, the support includes a bearing surface, an inner wall that is of the accommodation cavity and that is opposite to the bearing surface and the bearing surface are spaced apart, and the transmission structure is disposed on a surface of the bearing surface. In the first direction, the phase shift medium is disposed between the transmission structure and one of inner walls of the accommodation cavity, and the phase shift medium is slidably connected to the support in a second direction.