Folded Antenna Conductive Pattern for Full Display Devices
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The challenge in electronic devices with full displays is maintaining adequate radiation performance of antennas due to the minimized black matrix area, leading to insufficient separation distance between antenna devices and internal electrical components, which hampers their radiation performance.
Innovation Solution
The design includes a housing with a first and second plate, a side member, a printed circuit board with a ground, and conductive patterns that electrically connect the antenna radiation patterns to the RF communication circuit and ground, ensuring effective power feeding and grounding to maintain antenna performance in a narrow space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the black matrix area is minimized to achieve full display, then the display area is increased, but the antenna mounting space is reduced leading to insufficient radiation performance
Solution Approach 1:
The antenna structure transitions from a planar two-dimensional configuration to a three-dimensional folded structure. The conductive pattern is folded along a fold line to create spatial separation between the antenna and display module, enabling the antenna to achieve adequate radiation performance while maintaining the full display area.
Solution Approach 2:
The antenna conductive pattern is nested within the housing structure by folding it along the fold line, allowing the antenna to occupy a compact three-dimensional space within the device thickness rather than requiring additional planar area on the PCB.
2Reliability
If the separation distance between antenna and display module is increased to improve radiation performance, then the radiation performance is improved, but the device thickness or mounting space requirement is increased
Solution Approach 1:
Instead of increasing separation distance in the planar direction, the antenna is folded along a fold line to create vertical and lateral separation in three-dimensional space. This achieves the required separation distance for radiation performance without increasing the device's footprint or thickness.
Solution Approach 2:
The antenna structure incorporates a fold line that allows the conductive pattern to be positioned dynamically at different locations relative to the display module, enabling optimization of the separation distance for radiation performance while maintaining compact device dimensions.
Data Source
AI summary
An electronic device includes a housing including a first plate disposed to be oriented in a first direction, a second plate disposed to be oriented in a second direction opposite the first direction, and a side member surrounding a space between the first plate and the second plate and coupled to or integrally formed with the second plate; a display visible through at least part of the first plate; a printed circuit board (PCB) disposed in the space and including a ground; a first conductive pattern disposed between the PCB and the second plate and including a first portion and a second portion spaced apart from the first portion; a second conductive connection member disposed between the second portion and the PCB; and a radio frequency (RF) communication circuit electrically connected with the first conductive connection member and configured to transmit or receive at least one signal having a predetermined frequency. The PCB may include a first conductive path electrically connecting the RF communication circuit and the first portion; a second conductive path electrically connecting a first position of the ground and the second portion; a third conductive path electrically connecting the first portion and a second position of the ground; and a fourth conductive path electrically connecting the first portion and a third position of the ground.