Sliding Flexible Display Housing With Cavity Antenna Layout
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Solution Overview
Problem
The challenge of integrating an antenna into an electronic device with a sliding structure while maintaining antenna radiation performance is addressed.
Innovation Solution
The electronic device incorporates a cavity structure within the second housing that supports a flexible display, allowing for the placement of an antenna that maintains radiation performance during sliding operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If a sliding structure is used to expand the screen, then the screen size is increased, but the antenna radiation performance deteriorates
Solution Approach 1:
The housing is divided into a first housing and a second housing that can slide relative to each other, creating separate spatial zones. The antenna is specifically positioned within the second housing, which when slid out, provides a dedicated radiation space isolated from the first housing structure, thereby maintaining radiation performance while enabling screen expansion.
Solution Approach 2:
The antenna is positioned to utilize the third dimension (depth/thickness direction) of the second housing. By placing the antenna in a cavity structure within the second housing and utilizing the sliding direction as a spatial dimension, the antenna gains effective radiation space in the depth direction while the device maintains a compact form factor when closed.
2Area of moving object
If the flexible display is drawn out of the housing, then the screen area is increased, but the antenna placement becomes more difficult
Solution Approach 1:
The housing is segmented into first and second housings, with the antenna specifically placed in the second housing. This segmentation creates a dedicated antenna housing that remains in a fixed position relative to the antenna, simplifying the manufacturing and assembly process compared to integrating the antenna into a fully flexible structure.
Solution Approach 2:
The second housing acts as an intermediary structure between the flexible display and the antenna. It provides a stable mounting platform for the antenna while allowing the flexible display to be drawn out through the sliding mechanism, thereby decoupling the antenna placement requirements from the flexible display movement.
3Adaptability or versatility
If the second housing is slidable with respect to the first housing, then the flexible display functionality is improved, but the antenna radiation performance may be compromised
Solution Approach 1:
The second housing is designed to be slidable with respect to the first housing, creating a dynamic structure that adapts between closed and open states. The antenna is positioned within the second housing to maintain effective radiation space during sliding operations, allowing the system to dynamically adjust between compact storage and expanded functionality while preserving antenna performance.
Solution Approach 2:
The antenna is nested within a cavity structure in the second housing, which itself is nested within the overall housing assembly. This nested arrangement allows the antenna to be protected and positioned within the sliding mechanism without being exposed to external interference, maintaining radiation performance while enabling the flexible display functionality.
Data Source
AI summary
An electronic device including a housing including a first housing and a second housing that can slide with respect to the first housing, a flexible display arranged to be supported by the housing, the flexible display including a first area exposed to the outside of the electronic device and a second area, which extends from the first area and is withdrawn from the housing and is drawn into the housing according to the sliding of the second housing, a cavity structure positioned in the second housing and a wireless communication circuit configured to transmit and/or receive a signal of a selected or designated frequency band through the cavity structure.