Split Mesh Antenna Structure for Front Display Radiation
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Solution Overview
Problem
Existing antennas in electronic devices face radiation performance deterioration due to nearby conductors, difficulty in radiation to the front side of displays, and increased thickness when dielectric sheets with mesh patterns are added, which can also affect sensing functions.
Innovation Solution
An antenna design with a split structure that includes a mesh pattern portion on the same layer as a conductive pattern for sensing, featuring dummy pattern portions that split conductive lines irregularly or partially regularly, maintaining radiation performance and reducing device thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dielectric sheet including a mesh pattern portion is added to enable front side radiation, then radiation performance is improved, but device thickness increases
Solution Approach 1:
The patent merges the antenna function and sensing function into a single integrated structure. The mesh pattern portion serves dual purposes: as an antenna element for front side radiation and as a sensing electrode. This eliminates the need for a separate dielectric sheet with mesh pattern, thereby maintaining radiation performance while reducing device thickness.
Solution Approach 2:
The conductive mesh pattern is designed to perform multiple functions simultaneously. It acts as both the radiating element for wireless communication and the sensing electrode for touch or proximity detection. This multi-functionality removes the requirement for additional dedicated sensing layers, thus preventing thickness increase.
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 design maintains antenna performance while reducing thickness and minimizing interference with sensing functions by using a split mesh pattern structure, enhancing radiation efficiency and overall device functionality.
Implementation Method 1
An antenna may include an array antenna in which one or more antenna elements (e.g., one or more conductive patterns and/or one or more conductive patches) are arranged on a printed circuit board. These antenna elements may be arranged such that beam patterns are formed in at least one direction inside an electronic device.
Implementation Method 2
In the mesh pattern portion configured as a portion of the conductive mesh structure and operating as an antenna, an electric field may be induced by a peripheral conductive mesh structure split by a split portion
Data Source
AI summary
According to various embodiments of the present disclosure, an electronic device comprises: a dielectric sheet disposed between a display panel and at least one portion of a housing and includes a conductive mesh comprising a plurality of conductive lines, the dielectric sheet including at least one first mesh pattern part disposed in a first region of the dielectric sheet, a second mesh pattern part disposed in a second region at least partially surrounding the first region, and at least one dummy pattern part which segments the at least one first mesh pattern part and the second mesh pattern part in a third region between the first region and the second region; and a wireless communication circuit disposed in the housing and electrically connected to the at least one first mesh pattern part, wherein the at least one dummy pattern part may include a plurality of segments formed in the third region by partially removing the plurality of conductive lines.