Multi-Antenna Array Power Feed Network Segmentation
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Solution Overview
Problem
Existing multi-antenna arrays for LTE MIMO communication systems have complex and haphazard power feed networks, leading to increased errors and complexity in production and fault location, due to the use of a single power distribution plate for multiple polarization manners.
Innovation Solution
A multi-antenna array design with multiple power distribution plates arranged in upper and lower layers on the back of a reflection plate, each controlling power distribution for antenna radiation units in different polarization manners, facilitating orderly wiring and easier assembly, and using distinct colored cables for different polarization feed cables.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single power distribution plate is used for multiple polarization manners, then the device structure is simplified, but the power feed network arrangement becomes complex and haphazard, increasing production errors and fault location difficulty
Solution Approach 1:
The single power distribution plate is divided into multiple power distribution plates, with each plate dedicated to a specific polarization manner. This segmentation separates the power feed networks for different polarizations, eliminating the complex and haphazard arrangement that occurred when multiple polarizations shared a single plate, thereby reducing production errors and improving reliability.
2Reliability
If multiple power distribution plates are introduced for different polarization manners, then the power feed arrangement becomes orderly and production errors decrease, but the device structure becomes more complex
Solution Approach 1:
Multiple power distribution plates are arranged in different spatial dimensions (stacked vertically or positioned at different locations) rather than spreading them out in a single plane. This dimensional arrangement maintains structural compactness while achieving orderly power feed distribution for different polarizations, thus improving production accuracy without significantly increasing overall device complexity.
3Volume of stationary object
If feed circuits for different polarization manners are arranged irregularly on a single power distribution plate, then the device structure remains compact, but fault location and circuit replacement become complicated
Solution Approach 1:
By dividing the power distribution into separate plates for different polarization manners, each plate contains feed circuits that are systematically arranged and dedicated to a specific polarization. This segmentation makes fault location straightforward (identify which polarization is affected, then check the corresponding plate) and simplifies circuit replacement, while the stacked or vertical arrangement of plates maintains compact overall volume.
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
This design simplifies the power feed arrangement, reduces production errors, and facilitates fault identification and replacement, enhancing radiation efficiency and reducing complexity in multi-antenna array production.
Implementation Method 1
a reflection plate, antenna radiation units located on the front of the reflection plate, and a power feed network disposed on the back of the reflection plate
Data Source
Figure 1~2
Figure 3
AI summary
A multi-antenna array for a LTE MIMO communication system is provided in an embodiment of this invention, comprising a reflection plate and a power feed network disposed on the back of the reflection plate, a plurality of power distribution plates being arranged on the back of the reflection plate for controlling power distribution for antenna radiation units in different polarization manners respectively, the plurality of power distribution plates being disposed in upper and lower layers and are located at the geometrical center of a parallel plane of the reflection plate. The embodiment of this invention may prevent the scrambled arrangement of the power feed network in a multi-antenna array adopted in a LTE MIMO communication system, simplify power feed manner of antenna radiation units in different polarization manners, reduce complexity and the rate of errors in mass production of multi-antenna arrays of LTE MIMO communication systems, and facilitate locating faults and replacing feed circuits.