Transparent Antenna Layer Geometry for Higher Radiation Efficiency
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Solution Overview
Problem
Existing transparent antennas face a trade-off between optical transparency and antenna efficiency, with highly transparent antennas often suffering from poor efficiency, typically below 30%.
Innovation Solution
The development of an optically transparent antenna constructed using one or more layers of film, where the geometry of the layers is designed to minimize loss resistance, improving radiation efficiency and gain. Each layer has a width less than its length and greater than an eighth of its length, with specific implementations using conductive and optically transparent materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the antenna uses highly transparent materials to achieve high optical transparency, then the optical transparency is improved, but the antenna efficiency deteriorates
Solution Approach 1:
The antenna is divided into multiple discrete conductive elements (first conductive element, second conductive element, third conductive element) arranged in specific geometric patterns. This segmentation allows each element to be optimized for both transparency and conductivity, achieving high optical transparency while maintaining antenna efficiency through coordinated operation of multiple segments
Solution Approach 2:
The antenna employs composite structures combining transparent conductive materials with specific geometric configurations. The conductive elements are designed with width-to-length ratios between 0.05 and 0.2, creating a composite system that integrates optical transparency with electrical conductivity properties, resolving the trade-off between material transparency and antenna performance
2Reliability
If the conductive layer width is increased to improve conductivity, then the antenna efficiency is improved, but the optical transparency deteriorates
Solution Approach 1:
The invention optimizes the width-to-length ratio parameter of conductive elements to a specific range (0.05 to 0.2). This parameter optimization balances the competing requirements: narrow enough widths maintain optical transparency, while sufficient dimensions preserve electrical conductivity and antenna efficiency
Solution Approach 2:
Different regions of the antenna structure have different conductive element configurations. The first, second, and third conductive elements are positioned and dimensioned to create local variations in conductivity while maintaining overall transparency. Connection regions between elements are specifically designed to provide electrical continuity without excessive material coverage
3Reliability
If multiple layers of film are stacked to improve conductivity, then the radiation efficiency is improved, but the device complexity increases
Solution Approach 1:
The antenna transitions from planar two-dimensional conductive patterns to three-dimensional stacked configurations. Multiple conductive layers are positioned at different vertical levels with offset geometries, creating a three-dimensional conductive network that enhances radiation efficiency while managing the complexity through systematic layer arrangement
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
The described optically transparent antenna achieves improved radiation efficiency and gain, enabling the transmission of signals over longer distances without sacrificing signal quality, while maintaining high optical transparency.
Implementation Method 1
transmission and receiving antennas are used in many applications, such as communications... characterized by many factors among which the important ones are the electromagnetic frequency range
Implementation Method 2
the first conductive layer is optically transparent such that the first conductive layer exhibits optical transmission of approximately 80% or more
Data Source
AI summary
Methods, systems, and apparatus for an optically transparent antenna. The optically transparent antenna can include a substrate layer and a conductive layer formed on the substrate layer. In some implementations, the length of the conductive layer is greater than width of the conductive layer. In some implementations, the width of the conductive layer can be at least one eighth the length of the conductive layer. In some implementations, the conductive layer is optically transparent. In some implementation, the optically transparent antenna includes one or more additional conductive layers.