Integrated Antenna Array Layout for Reduced Cross-Band Coupling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional multi-standard integrated antenna arrays suffer from severe coupling between high-frequency and low-frequency bands, leading to performance issues without increasing the antenna size.
Innovation Solution
A multi-standard integrated antenna array design featuring high-frequency and low-frequency arrays mounted on a reflection plate, with cross-shaped and window-shaped low-frequency radiation units embedded in the horizontal and vertical central axes of high-frequency units, and staggered arrangements to reduce coupling and optimize performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If high-frequency arrays and low-frequency arrays are arranged in a staggered manner, then multi-standard requirements are met, but coupling between high-frequency bands and low-frequency bands becomes serious
Solution Approach 1:
The patent transitions from a two-dimensional planar arrangement to a three-dimensional spatial configuration by embedding low-frequency radiation units within the high-frequency array structure. This vertical integration allows both frequency bands to coexist in the same physical footprint while maintaining isolation through strategic positioning on different planes and levels.
Solution Approach 2:
The low-frequency radiation units are nested within the high-frequency array structure, with cross-shaped low-frequency units positioned at the intersections of high-frequency radiation elements. This nesting approach allows the low-frequency array to be embedded in the high-frequency array, achieving multi-standard functionality without increasing overall antenna size.
2Volume of moving object
If antenna size is reduced to meet mounting space constraints, then weight and footprint are decreased, but coupling between frequency bands increases
Solution Approach 1:
By utilizing the third dimension (vertical depth) for arranging radiation units, the patent achieves frequency isolation without increasing the antenna's horizontal footprint. The low-frequency units are positioned at different vertical levels and angular orientations, allowing compact integration while maintaining performance.
Solution Approach 2:
The patent employs asymmetric angular orientations for different frequency bands, with high-frequency units oriented at one angle and low-frequency units at a different angle. This asymmetric arrangement creates spatial separation between the frequency bands, reducing coupling effects while maintaining a compact overall structure.
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 design effectively decreases coupling between high-frequency and low-frequency bands, reducing the antenna's width and enhancing overall performance and coverage.
Implementation Method 1
each low-frequency array includes one or more cross-shaped low-frequency radiation units, each high-frequency array includes several high-frequency radiation units
Implementation Method 2
a multi-standard integrated antenna array includes a reflection plate, three or more high-frequency arrays and one or more low-frequency arrays, where the high-frequency arrays and the low-frequency arrays are mounted on the reflection plate
Data Source
Figure 1~2
Figure 3~4
AI summary
The present invention relates to the technical field of mobile communication devices, and provides a multi-standard integrated antenna array. The multi-standard integrated antenna array comprises a reflection plate, at least three high-frequency arrays, and at least one low-frequency array; the high-frequency arrays and the low-frequency arrays are all mounted on the reflection plate, each low-frequency array comprises at least one cross-shaped low-frequency radiation unit; each high-frequency array comprises a plurality of high-frequency radiation units; each cross-shaped low-frequency radiation unit is embedded in the horizontal and vertical central axes of the high-frequency radiation units; and the projection of each cross-shaped low-frequency radiation unit on the reflection plate is located outside the projection of each high-frequency radiation unit on the reflection plate. The cross-shaped low-frequency radiation unit is arranged on the horizontal and vertical central axes of each high-frequency radiation unit, such that the width of an antenna is decreased; and the projection of the cross-shaped low-frequency radiation unit on the reflection plate is located outside the projection of the high-frequency radiation unit on the reflection plate, such that the coupling between the high-frequency arrays and the low-frequency arrays is reduced, and the performance of the antenna is optimized.