Corner Antenna Layout for Rollable Housing Separation Control
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Solution Overview
Problem
In rollable electronic devices, it is challenging to maintain a sufficient separation distance between antennas and conductive components within a miniaturized housing, which affects antenna radiation performance.
Innovation Solution
The electronic device design incorporates a housing with specific angled structures that ensure a predetermined separation distance between antennas and conductive components, such as a cylindrical support member, to enhance antenna performance by forming specific angles at edges and using additional printed circuit boards and antennas to implement multiple frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the housing is miniaturized to reduce device size, then the device becomes more compact and portable, but the separation distance between the antenna and conductive components decreases, degrading antenna radiation performance
Solution Approach 1:
The patent positions the antenna at a corner of the housing where two side surfaces meet at an angle, utilizing the three-dimensional corner space. This angular positioning allows the antenna to maintain adequate separation from conductive components along both side surfaces simultaneously, effectively using spatial dimensionality to resolve the contradiction between compact housing and antenna performance
Solution Approach 2:
The patent creates a localized non-conductive region at the corner of the housing by forming an angled structure between two side surfaces. This local geometric modification provides a dedicated space for antenna placement that is electrically isolated from conductive components, ensuring optimal radiation performance in the specific corner region without affecting the overall compact design
2Adaptability or versatility
If multiple antennas for different frequency bands are added to provide comprehensive mobile communication services, then communication functionality is improved, but the device complexity and internal space requirements increase
Solution Approach 1:
The patent designs a single antenna structure that can operate across multiple frequency bands (2G, 3G, 4G, 5G), allowing one antenna to perform the function of multiple specialized antennas. This multi-functional approach maintains comprehensive communication functionality while reducing the number of antenna components and simplifying the overall system
Solution Approach 2:
The patent combines multiple antenna functions into a unified antenna structure positioned at the housing corner. By merging the radiation elements and feeding networks for different frequency bands into a single integrated antenna system, the patent reduces component count and simplifies the antenna subsystem while maintaining support for multiple communication standards
Data Source
AI summary
An electronic device of various embodiments of the present disclosure may include a housing, a cylindrical support member disposed in the housing, a first printed circuit board disposed in the housing, a first antenna disposed in the housing, and a first wireless communication circuit disposed on the first printed circuit board. The housing may include a first surface, a second surface parallel to the first surface, and a side surface surrounding at least one portion of a space between the first surface and the second surface. The side surface may include a first side surface and a second side surface forming an angle with the first side surface at a first edge. The first antenna may be disposed adjacent to at least one portion of the first edge and spaced apart from the cylindrical support member by a predetermined distance. The first wireless communication circuit may be configured to feed power to the first antenna and transmit and receive a signal of a frequency band.