Coplanar Dual-Polarized Antenna Layout for Compact 5G Displays
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Solution Overview
Problem
The challenge in designing antennas for 5G terminal devices is the limited space and the need for improved signal strength due to the spatial transmission loss of millimeter waves, which is exacerbated by the use of metal frames and rear covers that restrict the deployment of antenna arrays, particularly in devices like smartphones and tablets.
Innovation Solution
The proposed solution involves a dual-polarized antenna unit with a radiation main body, feed lines, and grounding portions arranged in the same layer, featuring a symmetrical contour and specific positioning of feed lines and grounding portions to enhance radiation performance and bandwidth, while minimizing space occupancy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If antennas are arranged at the rear surface of electronic apparatus, then antenna deployment is simplified, but signal strength at the front surface becomes weak
Solution Approach 1:
The patent transitions antenna deployment from the traditional rear surface (two-dimensional plane) to the front surface integrated with the display panel (adding the display dimension). This allows the antenna to utilize the display panel's surface area while maintaining signal strength at the front surface, resolving the contradiction between deployment simplicity and signal quality.
Solution Approach 2:
The display panel serves dual functions: as a display device and as the substrate for antenna integration. By making the display panel multi-functional (serving both display and antenna carrier roles), the patent achieves simplified deployment while maintaining front surface signal strength, as the antenna is integrated into the same structure used for display.
2Reliability
If antenna arrays are deployed to improve millimeter wave coverage, then signal coverage improves, but space occupancy increases
Solution Approach 1:
The patent merges the antenna structure with the display panel, combining two previously separate components (antenna array and display panel) into a single integrated structure. This allows the antenna to achieve improved millimeter wave coverage while occupying the same space as the display panel, thereby resolving the contradiction between signal coverage and space occupancy.
Solution Approach 2:
The patent utilizes the display panel's surface area (a two-dimensional plane) to accommodate the antenna array, effectively using the display dimension as additional space for antenna deployment. This allows improved signal coverage without increasing the device's overall footprint or occupying additional internal space.
3Area of stationary object
If antenna size is reduced for limited space, then space occupancy decreases, but radiation efficiency deteriorates
Solution Approach 1:
The patent changes the physical parameters of the antenna by integrating it with the display panel, which has specific electromagnetic properties. The display panel's substrate characteristics modify the antenna's radiation parameters, allowing the antenna to maintain efficient radiation performance even with a reduced physical size, thus resolving the contradiction between compact size and radiation efficiency.
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 design improves antenna performance by increasing radiation efficiency and bandwidth, allowing for better coverage of 5G millimeter wave frequencies with a smaller antenna size, suitable for integration in limited spaces of electronic devices without compromising display panel thickness.
Implementation Method 1
both the feeding portions and the grounding portions are arranged in the same layer in which the radiation main body is arranged
Implementation Method 2
the radiation main body, the at least one feed line, and the plurality of grounding portions are provided in a same layer
Data Source
AI summary
An antenna unit, a manufacturing method thereof, a display device, and an electronic apparatus. The antenna unit includes a radiation main body, at least one feed line, and a plurality of grounding portions. The at least one feed line and the radiation main body are electrically connected, the radiation main body, the at least one feed line, and the plurality of grounding portions are provided in a same layer.