Conductive Cover Antenna with Slits for Compact Devices
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Solution Overview
Problem
As electronic devices shrink and offer more functions, space for antennas becomes limited, and conductive components can degrade antenna performance, necessitating innovative solutions to maintain radiation efficiency without increasing volume.
Innovation Solution
An antenna apparatus is designed where a component element of the electronic device, such as a conductive cover with slits, serves as part of the antenna, with a feeding module and ground connection module to supply current and maintain radiation performance, allowing for reduced manufacturing costs and appealing design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the size of electronic device decreases, then the portability and compactness are improved, but the space for mounting antenna becomes smaller
Solution Approach 1:
The patent merges the antenna structure with the conductive cover of the electronic device. The conductive cover, which is already present as a structural component, is designed to serve dual purposes: providing mechanical protection and serving as the radiating element of the antenna. This integration eliminates the need for separate antenna components, thereby maintaining antenna functionality while reducing overall device volume.
Solution Approach 2:
The conductive cover is designed to perform multiple functions simultaneously: it acts as both a protective structural element and an antenna component. By making the cover universal in its functionality, the patent resolves the contradiction between device compactness and antenna space, as the same component serves both structural and electromagnetic radiation purposes.
2Strength
If various component elements are formed of conductive material, then the structural strength and appearance are improved, but the transmission/reception performance of antenna deteriorates
Solution Approach 1:
The patent extracts the antenna function from traditional antenna components and assigns it to the conductive cover. By doing so, it separates the antenna's radiating function from components that would otherwise be purely structural. The conductive material in the cover is specifically configured with slits and patterns that enable electromagnetic radiation while maintaining structural integrity, thus resolving the contradiction between structural strength and antenna performance.
Solution Approach 2:
The conductive cover is designed with localized features such as slits and patterned structures in specific areas to optimize antenna performance. These local modifications allow the cover to exhibit different electromagnetic properties in different regions, enabling effective radiation while maintaining overall structural strength. The local quality changes in the cover's conductive pattern resolve the contradiction by allowing structural and electromagnetic functions to coexist.
3Reliability
If the volume of antenna apparatus is increased, then the radiation performance is improved, but the compactness of electronic device deteriorates
Solution Approach 1:
The patent combines the antenna apparatus with the conductive cover, which is already an integral part of the device's structural volume. By merging these functions, the antenna does not require additional volume beyond what is already allocated for the cover. This resolves the contradiction between radiation performance and device compactness, as the antenna utilizes the existing cover space rather than adding to it.
Solution Approach 2:
The patent employs two-dimensional patterned structures and slit configurations on the surface of the conductive cover to achieve three-dimensional electromagnetic radiation performance. By utilizing the surface area of the cover in creative two-dimensional patterns, the antenna achieves effective radiation without requiring increased volumetric space, thus resolving the contradiction between radiation performance and compactness.
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 approach enhances antenna performance within spatial constraints, reduces manufacturing costs, and allows for a more compact and aesthetically pleasing electronic device design by utilizing existing components as antenna parts.
Implementation Method 1
a feeding module for supplying a current to at least one of the first section and the second section
Data Source
AI summary
An antenna apparatus is provided. The antenna apparatus includes a first section including at least one slit spaced apart from an outer edge of the antenna apparatus by a predetermined distance, a second section distinguished from the first section through the slit, and a feeding module for supplying a current to at least one of the first section and the second section.