Folding Antenna Isolation via Hinge Continuity Structure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional antenna structures face challenges in ensuring sufficient isolation between multiple antennas, which is crucial for MIMO multiplex communication technology to achieve high communication speeds.
Innovation Solution
An antenna device with a rotation mechanism that includes a continuity structure intersecting the rotation axis between driven elements, allowing for direct-current or high-frequency continuity between conductor plates, enhancing isolation and radiation efficiency, and incorporating parasitic elements for improved radiation efficiency and bandwidth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple antenna elements are arranged in a conventional folding terminal structure, then the device can support MIMO multiplex communication, but sufficient isolation between the antenna elements cannot be ensured
Solution Approach 1:
The patent utilizes the folding motion dimension of the terminal to achieve spatial separation between antenna elements. By arranging antenna elements on different housings that rotate relative to each other around a folding axis, the patent creates dynamic spatial isolation in three-dimensional space, transforming a two-dimensional planar arrangement into a three-dimensional configuration that provides sufficient electromagnetic isolation while maintaining MIMO functionality
Solution Approach 2:
The patent divides the terminal into multiple independent housings (first housing and second housing) connected by a folding mechanism. Each housing contains separate antenna elements, and the folding structure acts as an isolating barrier between them. This segmentation physically separates the antenna elements into distinct spatial zones, ensuring sufficient isolation for MIMO operation
2Volume of moving object
If the hinge shaft is used as an element conductor to reduce terminal size, then device compactness is improved, but sufficient isolation between antenna elements cannot be achieved
Solution Approach 1:
The patent extracts the grounding function from the hinge shaft itself and implements it through a separate continuity structure. This allows the hinge shaft to serve purely as a mechanical connection while the dedicated continuity structure provides the necessary electromagnetic grounding and isolation. The continuity structure is specifically designed to maintain DC and high-frequency continuity while providing isolation between antenna elements
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 solution achieves stable electromagnetic coupling, low correlation coefficient, and high radiation efficiency, ensuring sufficient isolation and efficient operation across various frequency bands, including those used in LTE communication standards.
Implementation Method 1
a continuity structure intersecting the rotation axis between the first driven element and the second driven element to establish direct-current or high-frequency continuity between the first conductor plate and the second conductor plate
Implementation Method 2
a first driven element and a second driven element arranged along a rotation axis of the rotation mechanism
Implementation Method 3
a first parasitic element disposed along the rotation axis and electromagnetically coupled to the first driven element, and a second parasitic element disposed along the rotation axis and electromagnetically coupled to the second driven element
Data Source
AI summary
A first housing includes a first conductor plate, and a second housing includes a second conductor plate. A rotation mechanism openably and closably attaches the second housing to the first housing. A first driven element and a second driven element are arranged along a rotation axis of the rotation mechanism. Between the first driven element and the second driven element, a continuity structure intersects the rotation axis to establish direct-current or high-frequency continuity between the first conductor plate and the second conductor plate. An antenna device can be provided which can ensure sufficient isolation between a plurality of driven elements.