Antenna Device with Integrated Radiation Patterns for Display
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Solution Overview
Problem
Thin and lightweight display devices face challenges in constructing antennas with sensitivity to broadband signals due to limited space, leading to deteriorated radiation reliability and potential image quality issues when antennas of different frequency bands are arranged closely, especially when disposed on the front face.
Innovation Solution
An antenna device with integrated radiation patterns of different frequency bands, connected by a common transmission line and featuring a mesh structure with dummy patterns to reduce signal interference and improve spatial efficiency, allowing for broadband communication within a limited space while maintaining image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the display device is made thinner and lighter, then the portability and aesthetic appearance are improved, but the space available for the antenna is reduced
Solution Approach 1:
The patent embeds the antenna structure within the display device's existing layers and components. The antenna is integrated into the front cover assembly, utilizing the space between the display panel and the outer surface, effectively nesting the antenna function within the existing device structure without increasing overall thickness.
Solution Approach 2:
The patent transitions from planar antenna designs to three-dimensional立体 structures by utilizing the Z-axis space within the display device. The antenna is positioned at an angle relative to the display surface, creating a three-dimensional radiation pattern that efficiently uses the limited vertical space available in thin display devices.
2Adaptability or versatility
If antennas of different frequency bands are arranged in limited space, then broadband communication capability is achieved, but mutual signal interference increases
Solution Approach 1:
The patent divides the antenna structure into multiple independent radiation elements, each optimized for specific frequency bands. These segmented elements are spatially separated and oriented at different angles to minimize mutual coupling and signal interference while maintaining broadband coverage capability.
Solution Approach 2:
Different portions of the antenna structure are designed with locally optimized properties for different frequency bands. The antenna employs varying geometric configurations, conductor widths, and spacing in different regions to achieve frequency-selective radiation characteristics while maintaining overall broadband functionality.
3Reliability
If the antenna is disposed at the front face of the display device, then the radiation efficiency is improved, but the image quality is deteriorated
Solution Approach 1:
The patent employs transparent or translucent conductive materials and thin-film antenna structures that allow light to pass through with minimal obstruction. The antenna conductors are made from transparent conductive oxides or ultra-thin metal films that maintain electrical functionality while being optically transparent, thus preserving display visibility and image quality.
Solution Approach 2:
The antenna structure utilizes materials and designs that are optically transparent or match the color of the display bezel, making the antenna invisible or minimally visible during operation. This approach maintains the aesthetic appearance and image quality while enabling front-face antenna placement for optimal radiation efficiency.
Data Source
AI summary
An antenna device according to an embodiment of the present invention includes a dielectric layer, a first radiation pattern disposed on the dielectric layer, a second radiation pattern disposed in the first radiation pattern and partially separated from the first radiation pattern, and a transmission line commonly connected to the first radiation pattern and the second radiation pattern.