Radome Pattern Structure for Antenna Element Decoupling
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Solution Overview
Problem
In wireless communication systems, especially in Massive MIMO technology, coupling between multiple antennas leads to signal leakage and reduced efficiency, posing a challenge in maintaining high data transmission rates without increasing the overall size of the antenna device.
Innovation Solution
The antenna device incorporates a radome spaced apart from the antenna elements, featuring a pattern portion on its surface that decouples electromagnetic waves, thereby minimizing coupling between antenna elements without increasing the device's size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple antennas are disposed in spatial constraints to increase channel capacity, then data transmission capacity is improved, but coupling between antennas increases causing signal leakage
Solution Approach 1:
A decoupling structure is introduced as an intermediary element between multiple antenna elements. This structure selectively blocks or absorbs electromagnetic waves that would otherwise couple between adjacent antennas, thereby reducing signal leakage while allowing the antennas to maintain their close spacing for high data transmission capacity.
Solution Approach 2:
The decoupling structure is divided into multiple segments corresponding to different antenna elements. Each segment is positioned between specific antenna pairs to provide targeted decoupling, allowing the system to maintain close antenna spacing while minimizing coupling effects through localized intervention.
2Loss of energy
If decoupling structures are added to reduce coupling between antenna elements, then signal leakage is reduced, but the overall size of the antenna device increases
Solution Approach 1:
The decoupling structure is nested within the existing antenna device housing or radome space. By utilizing the available internal volume and positioning the decoupling elements between the antenna elements rather than adding external structures, the overall device size is minimized while still achieving effective decoupling.
Solution Approach 2:
The decoupling structure employs thin film or shell-like elements that can be integrated into the radome or housing. These thin structures provide effective decoupling functionality while occupying minimal space, thereby reducing signal leakage without significantly increasing the overall antenna device 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 configuration effectively reduces coupling between antenna elements, preventing signal leakage and maintaining high channel capacity, thus enhancing the efficiency of the antenna device without increasing its size.
Implementation Method 1
a radome spaced apart from the plurality of antenna elements in the height direction and configured to surround the at least one base substrate and the plurality of antenna elements, wherein the radome includes a pattern portion disposed on a surface facing the plurality of antenna elements and configured to be able to decouple electromagnetic waves radiated from the plurality of antenna elements
Data Source
AI summary
According to an embodiment of the present disclosure, provided is an antenna device comprising: at least one base substrate; a plurality of antenna elements disposed on the at least one base substrate in a height direction perpendicular to the at least one base substrate and supported by the at least one base substrate; and a radome spaced apart from the plurality of antenna elements in the height direction and configured to surround the at least one base substrate and the plurality of antenna elements, wherein the radome includes a pattern portion disposed on a surface facing the plurality of antenna elements and configured to be able to decouple electromagnetic waves radiated from the plurality of antenna elements.