Film Antenna Nested Radiation Patterns Display Transparency
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Solution Overview
Problem
Thin and lightweight display devices face challenges in accommodating antennas with improved signaling sensitivity across a broadband range without affecting image quality or transparency.
Innovation Solution
A film antenna with multiple radiation patterns of different frequency bands, connected via transmission lines to a driving circuit unit, is designed to be thin and transparent, featuring a mesh pattern structure and a dummy mesh pattern to enhance transmittance and conceal electrode visibility, allowing for broadband communication and high 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 aesthetics are improved, but the space for the antenna is reduced
Solution Approach 1:
The patent implements nested radiation patterns where inner radiation patterns are positioned within the loop shapes of outer radiation patterns. This nesting arrangement allows multiple frequency bands to be integrated in a limited space, enabling broadband communication functionality in thin display devices without requiring additional space.
Solution Approach 2:
The patent transitions from traditional planar antenna designs to three-dimensional nested loop structures. By utilizing vertical stacking and nested configurations, the antenna achieves broadband performance in a compact footprint, effectively using the Z-dimension to overcome space constraints in thin devices.
2Ease of operation
If the antenna is disposed on the front surface of the display device, then the accessibility and integration are improved, but the transparency and image quality may be affected
Solution Approach 1:
The patent employs mesh pattern structures and dummy mesh patterns in specific regions of the antenna. These localized structural modifications optimize electromagnetic performance in certain areas while maintaining high transparency in other regions, allowing the antenna to be disposed on the front surface without significantly affecting image quality.
Solution Approach 2:
The patent utilizes mesh pattern structures that create porous or grid-like configurations in the antenna elements. This porous design reduces the visual impact and improves transparency while maintaining the electrical functionality of the antenna, enabling front-surface placement without compromising display quality.
3Adaptability or versatility
If multiple radiation patterns for different frequency bands are integrated, then the broadband communication capability is improved, but the device complexity increases
Solution Approach 1:
The patent combines multiple radiation patterns for different frequency bands into a single integrated antenna structure. By merging Wi-Fi, Bluetooth, and other communication functions into one nested loop antenna system, the patent achieves broadband capability while reducing the number of separate antenna components and simplifying the overall device structure.
Solution Approach 2:
The nested loop radiation patterns are designed to support multiple frequency bands and communication protocols simultaneously. This multi-functional design allows a single antenna structure to handle various wireless communication tasks, reducing device complexity compared to using separate antennas for each function.
Data Source
AI summary
A film antenna according to an embodiment of the present invention includes a plurality of radiation patterns corresponding to different frequency bands, transmission lines extending from each of the radiation patterns, and a driving circuit unit commonly connected to the transmission lines. Signaling transmission/reception efficiency and reliability may be improved by integrating the radiation patterns of different frequency bands.