Sliding Antenna Structure for Stable Signal in Rollable Devices
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Electronic devices with rollable displays face challenges in maintaining antenna performance when the housing is closed, as the antenna structures are covered, leading to deteriorated signal reception.
Innovation Solution
An electronic device design featuring a first and second housing with sliding mechanisms, where the first antenna and second antenna are electrically connected through a linear motion guide including a rail and a ball bearing, ensuring continuous antenna performance regardless of the housing state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the housing is closed to protect internal components, then device compactness is improved, but antenna performance deteriorates due to coverage of the antenna structure
Solution Approach 1:
The housing is divided into multiple segments (first housing and second housing) that can slide relative to each other. The antenna structure is positioned in the second housing, which can be extended from the first housing to expose the antenna when needed, while being retracted to maintain compactness when not in use.
Solution Approach 2:
The housing transitions from a static closed structure to a dynamic structure with sliding capability. The second housing can slide out to expose the antenna structure for optimal signal reception, and slide back in to maintain compact form factor, allowing the system to adapt between two operational states.
2Reliability
If the antenna structure is exposed to maintain antenna performance, then signal reception is improved, but device compactness deteriorates
Solution Approach 1:
The second housing containing the antenna structure is nested within or adjacent to the first housing. When the device is in its compact state, the antenna-containing housing is retracted into the main housing body. When antenna performance is needed, the second housing slides out to expose the antenna structure, achieving both compactness and performance as needed.
3Reliability
If a sliding mechanism is added to enable housing movement for antenna exposure, then antenna performance is maintained, but device complexity increases
Solution Approach 1:
The sliding mechanism is integrated into the housing structure itself rather than being a separate complex assembly. The first and second housings are designed to slide relative to each other as a unified structural arrangement, combining the antenna exposure function with the housing design to minimize additional complexity.
Data Source
AI summary
An electronic device is provided. The electronic device includes a first housing including a first side portion in which a first antenna is formed, a second housing configured to slide with respect to the first housing and including a second side portion in which a second antenna is formed, a rollable display including a first display area and a second display area extending from the first display area, wherein at least a portion of the second display area is configured to be moveable based on a sliding movement of the second housing, and a linear motion guide including a rail disposed on an inner side of the first side portion, a head disposed on the outer side of the second side portion and slidably fastened to the rail, and a ball bearing disposed between the rail and the head, wherein the first antenna and the second antenna are configured to be electrically connected to each other through the head and the rail.