Compact Base Station Radiator Assembly With Hook-Like Feeders
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Solution Overview
Problem
Current base station antennas require larger radiator assemblies, limiting their miniaturization and compactness, which is desirable for efficient communication systems.
Innovation Solution
A compact radiator assembly for base station antennas is designed with two cross-arranged dipoles around a longitudinal central axis, each equipped with hook-like feeders made of metal sheets that are capacitively coupled with the dipole arms, allowing for efficient transmission of radio frequency signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If traditional radiator assemblies are used in base station antennas, then the antenna can transmit radio frequency signals, but the size of the radiator assembly is large, limiting miniaturization
Solution Approach 1:
The hook-like feeder is nested within the dipole arm structure, with the feeder positioned inside the dipole arm and capacitively coupled to it. This nesting arrangement allows the feeder to be integrated within the existing dipole structure rather than requiring separate mounting space, thereby reducing the overall volume of the radiator assembly while maintaining signal transmission functionality
Solution Approach 2:
The hook-like feeder extends in a direction substantially perpendicular to the longitudinal axis of the dipole arm, utilizing a different spatial dimension for the feeder path. This dimensional reorientation allows the feeder to be routed efficiently within the compact dipole structure without interfering with the primary length-wise dimensions, enabling miniaturization while preserving electrical connection integrity
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 compact radiator assembly enables efficient transmission of radio frequency signals while minimizing size, enhancing the miniaturization of base station antennas and improving communication system efficiency.
Implementation Method 1
the hook-like feeder is capacitively coupled with an associated dipole arm
Data Source
AI summary
A radiator assembly for a base station antenna has a longitudinal central axis and two dipoles cross-arranged around the longitudinal central axis. Each dipole has two dipole arms and each dipole arm is equipped with a hook-like feeder made of a metal sheet and having a free end portion. The hook-like feeder is capacitively coupled with an associated dipole arm. The radiator assembly is compact and is easy to manufacture and assemble.