Broadband Base Station Antenna Module With Stub Circuit Phase Control
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Solution Overview
Problem
Existing antenna modules for base stations struggle to provide stable signal transmission and reception across multiple frequency bands, leading to unstable gain and phase issues.
Innovation Solution
The proposed antenna module configuration includes multiple antenna units with diagonal antenna elements, signal distributors, and stub circuits to stabilize phase and gain across broadband frequencies, using a single antenna module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple antenna modules are used for different frequency bands, then communication coverage across multiple bands is improved, but device complexity and installation space increase
Solution Approach 1:
The patent combines multiple antenna units (first antenna unit with first frequency band characteristics and second antenna unit with second frequency band characteristics) into a single integrated antenna module. This merging approach allows the antenna module to support multiple frequency bands simultaneously while reducing the total number of separate antenna modules required, thereby resolving the contradiction between frequency band coverage and device complexity
Solution Approach 2:
The antenna module is designed with multi-functional capability to operate across multiple frequency bands. By incorporating both first antenna units optimized for first frequency bands and second antenna units optimized for second frequency bands within the same module, it achieves universal applicability across different communication bands, eliminating the need for separate specialized antenna modules for each band
2Area of stationary object
If a single antenna module supports broadband frequencies, then installation space is reduced, but signal stability and gain consistency deteriorate
Solution Approach 1:
The patent applies local quality optimization by designing different antenna units with frequency-specific characteristics tailored to their intended bands. The first antenna units are optimized for first frequency bands while the second antenna units are optimized for second frequency bands. This localized optimization within each antenna unit ensures that signal stability and gain consistency are maintained for each specific frequency band, even though the overall module covers broadband frequencies
Solution Approach 2:
The antenna module is segmented into distinct first antenna units and second antenna units, each with specialized characteristics for specific frequency bands. This segmentation allows each unit to be optimized independently for its target frequency range, maintaining signal stability within each band while enabling the overall module to cover multiple bands in a single installation
Data Source
AI summary
An antenna module includes: a first antenna unit, a second antenna unit, and a third antenna unit, each of the first antenna unit, the second antenna unit, and the third antenna unit including a first antenna element and a second antenna element that are crossed diagonally with each other; a first signal distributor configured to distribute a first radio frequency (RF) signal to the first antenna element of each of the first antenna unit, the second antenna unit, and the third antenna unit; a second signal distributor configured to distribute a second RF signal to the second antenna element of each of the first antenna unit, the second antenna unit, and the third antenna unit; and first stub circuits connected to line tracks of the first signal distributor connected to the first antenna unit, the second antenna unit, and the third antenna unit.