Stepped Reflector Antenna Assembly for Multi-Band Base Stations
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing base station antenna arrangements face complexity and cost challenges due to the integration of multiple frequency bands, with passive antenna assemblies needing to adapt to various active antenna modules effectively.
Innovation Solution
A base station antenna arrangement featuring a reflector with distinct longitudinal sections and a stepped segment, coupled with passive and active antenna modules, allowing for efficient operation across different frequency bands while maintaining electrical coupling and reducing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a passive antenna assembly uses a traditional single-plane reflector structure, then the manufacturing is simple, but the adaptability to different active antenna modules and frequency bands is limited
Solution Approach 1:
The reflector is divided into multiple longitudinal sections (first longitudinal section, second longitudinal section, third longitudinal section) with different plane orientations. Each section can be independently designed and positioned to accommodate different active antenna modules and frequency bands, enabling the passive antenna assembly to adapt to various configurations without requiring complete redesign of the entire reflector structure.
2Adaptability or versatility
If multiple frequency bands are integrated in a base station antenna arrangement, then the functionality is improved, but the device complexity increases
Solution Approach 1:
The passive antenna assembly with its multi-section reflector structure is designed to support multiple active antenna modules operating at different frequency bands simultaneously. The universal design allows a single passive assembly to work with various active modules (e.g., 5G NR, 4G LTE, 3G WCDMA modules) by adjusting the positioning and configuration of radiating elements across the different longitudinal sections, eliminating the need for separate passive assemblies for each frequency band.
3Reliability
If radiating elements are arranged on a single plane reflector, then the structure is simple, but the performance optimization for multiple frequency bands is limited
Solution Approach 1:
Different longitudinal sections of the reflector are positioned in different planes (first plane, second plane, third plane) to optimize performance for specific frequency bands and active antenna modules. For example, the first longitudinal section in the first plane may be optimized for 5G NR operation, while the second longitudinal section in the second plane optimizes for 4G LTE operation. This local optimization allows each section to be tailored for its specific function while maintaining overall system performance.
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.