Multi-Plane Base Station Reflector for Beam and Band Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing base station antenna arrangements face challenges in efficiently managing multiple frequency bands and achieving optimal performance due to the complexity of 5G communication technology.
Innovation Solution
The proposed antenna assembly for base station antennas incorporates a reflector with a unique longitudinal structure, featuring a first longitudinal section in one plane and a second longitudinal section in an adjacent plane, allowing for improved radiation patterns and frequency band management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional single-plane reflector is used, then the structure is simple, but the front-to-back ratio and sector power ratio are insufficient
Solution Approach 1:
The reflector is divided into multiple longitudinal sections (first longitudinal section, second longitudinal section, third longitudinal section) that are offset from each other in the longitudinal direction. Each section can be independently positioned to optimize radiation patterns, thereby improving the front-to-back ratio and sector power ratio while maintaining manageable structural complexity through modular segmentation.
Solution Approach 2:
The reflector transitions from a conventional single-plane structure to a multi-plane structure with longitudinal offset. The first, second, and third longitudinal sections are positioned at different longitudinal locations, creating a three-dimensional configuration that enhances radiation control and improves antenna performance metrics without requiring excessive structural complexity.
2Adaptability or versatility
If multiple frequency bands are supported, then the adaptability increases, but the device complexity increases
Solution Approach 1:
The base station antenna arrangement is designed to support multiple frequency bands (e.g., sub-6GHz and millimeter wave bands) using a unified multi-plane reflector structure. The same reflector configuration with offset longitudinal sections can be adapted to different frequency bands by adjusting radiating element arrangements, providing universal functionality across multiple bands without requiring completely separate antenna systems.
Solution Approach 2:
Different regions of the antenna arrangement are optimized for different frequency bands. The multi-plane reflector structure allows local optimization of radiating elements and reflector sections to suit specific frequency requirements, enabling the system to handle diverse frequency bands with tailored local characteristics while maintaining overall structural coherence.
3Manufacturing precision
If radiating elements are arranged on a single plane, then the manufacturing is simple, but the half-power beam width control is limited
Solution Approach 1:
The reflector is segmented into multiple longitudinal sections positioned at different longitudinal locations. This segmentation enables independent optimization of each section's contribution to the overall beam pattern, allowing precise control over the half-power beam width through coordinated adjustment of individual sections while maintaining manageable manufacturing complexity.
Solution Approach 2:
By introducing longitudinal offset between reflector sections, the design moves from a two-dimensional single-plane configuration to a three-dimensional multi-plane structure. This dimensional enhancement provides additional degrees of freedom for beam shaping and half-power beam width control, improving manufacturing precision in beam characterization without excessive complexity increase.
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 innovative structure enhances the performance of base station antennas by improving the front-to-back ratio, sector power ratio, and half-power beam width, thereby supporting efficient operation across multiple frequency bands.
Implementation Method 1
The reflector has a first longitudinal section residing in a first plane and a second longitudinal section residing in a second plane that is adjacent to the first longitudinal section
Data Source
AI summary
The present application relates to an antenna assembly for a base station antenna, a base station antenna arrangement and a base station antenna. The antenna assembly has a reflector, which has a longitudinal extent, a front side and a rear side opposite the front side, where the front side is configured for radiating elements to be arranged thereon, wherein, the reflector has a first longitudinal section residing in a first plane and a second longitudinal section residing in a second plane that is adjacent to the first longitudinal section, where the first plane is rearward of the second plane. The properties of the base station antenna arrangement and the base station antenna may be improved through the antenna assembly.