Transparent Array Antenna in Display for 5G Radiation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electronic devices with antennas face high loss and radiation challenges in the 5G frequency band, particularly due to the difficulty of electromagnetic wave radiation through the rear surface when covered by a hand and the inability of waves to pass through the display front surface.
Innovation Solution
The implementation of an array antenna using a transparent electrode material within the display unit, with slopingly disposed patch antennas and linearly parallel feeding lines to reduce feeding and radiation loss, maintain polarization purity, and enhance isolation characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If an antenna is provided on the rear surface of the electronic device, then radiation coverage is improved, but radiation performance deteriorates when the rear surface is covered by a hand
Solution Approach 1:
The patent transitions the antenna from the rear surface (2D plane) to the front display surface (2D plane with different electromagnetic characteristics). This dimensional relocation allows the antenna to operate in a space not blocked by the hand, solving the contradiction between coverage area and performance stability.
Solution Approach 2:
The transparent electrode material serves as an intermediary that enables the antenna to be integrated into the display structure. This intermediary allows electromagnetic waves to pass through the display while maintaining antenna functionality, resolving the issue of hand blocking rear surface radiation.
2Reliability
If an antenna is integrated within the display unit, then radiation performance is improved, but feeding loss increases
Solution Approach 1:
The patent divides the feeding structure into multiple segments (first feeding line and second feeding line) with different orientations. This segmentation reduces the overall feeding path length and minimizes feeding loss while maintaining effective radiation performance.
Solution Approach 2:
The feeding lines are designed with asymmetric orientations (first feeding line in first direction, second feeding line in second direction perpendicular to the first). This asymmetric configuration optimizes the feeding paths to reduce loss while maintaining polarization purity.
3Adaptability or versatility
If transparent electrode material is used for the antenna, then integration with display is improved, but manufacturing precision requirements increase
Solution Approach 1:
The transparent electrode material serves multiple functions: it acts as both the antenna element and integrates with the display structure. This multi-functionality simplifies the manufacturing process by eliminating the need for separate antenna components, thereby reducing precision requirements despite the dual role.
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 configuration improves antenna performance by reducing feeding and radiation losses, maintaining polarization purity, and preventing performance variations due to device rotation, thereby enhancing overall radiation efficiency.
Implementation Method 1
electromagnetic waves of an antenna are radiated to a front or rear surface of an electronic device
Implementation Method 2
an antenna formed of a transparent electrode material in a display unit
Data Source
Figure 1A
Figure 1B~1C
Figure 2A
AI summary
An electronic device including a display unit; an array antenna including a transparent electrode material and being disposed within the display unit; and a radio frequency integrated circuit (RFIC) electrically connected to the array antenna. The array antenna includes an antenna element having first and second sides perpendicular to each other disposed slopingly at a predetermined angle with respect to one side of the display unit; and a feeding part connecting the antenna element and the RFIC.