Transparent Planar Antenna Mesh for Light Transmission and Radiation
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Solution Overview
Problem
Traditional antennas lack light penetration, causing visibility issues and poor electrical conductivity, which affects radiation efficiency, making them unsuitable for applications requiring transparency and good radiation function.
Innovation Solution
A planar transparent antenna structure is designed with a two-level metal mesh composed of a dielectric substrate, radiation conductive layer, and ground conductive layer, featuring interlaced wires and grid lines to achieve both light transmittance and radiation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If metal oxide semiconductor is used to make antennas to achieve transparency, then light transmittance is improved, but electrical conductivity deteriorates (100 times worse than metal)
Solution Approach 1:
The patent uses a composite structure combining metal mesh layers with dielectric substrate. The metal mesh provides high electrical conductivity while the dielectric substrate ensures light transmittance. This composite approach allows the antenna to achieve both optical transparency and electrical performance, overcoming the limitation of metal oxide semiconductors which have poor conductivity despite being transparent.
2Reliability
If traditional metal antennas are used, then radiation efficiency is improved, but light penetration deteriorates (blocking field of view)
Solution Approach 1:
The patent segments the continuous metal structure into a mesh pattern with interconnected conductive elements. This segmentation creates gaps that allow light to pass through while maintaining electrical connectivity for radiation. The mesh structure divides the metal into discrete conductive paths that preserve electromagnetic functionality while enabling optical transparency.
Solution Approach 2:
The patent applies different properties to different parts of the antenna structure. The metal mesh regions provide electrical conductivity and radiation function, while the spaces between mesh elements provide light transmission. This local differentiation of properties allows simultaneous achievement of radiation efficiency and light penetration in different spatial zones of the same structure.
3Illumination intensity
If metal mesh structure is used to improve light transmittance, then transparency is improved, but device complexity increases (two-levels mesh configuration)
Solution Approach 1:
The patent implements a nested two-level mesh structure where a finer grid mesh is embedded within a coarser wire mesh framework. The first level consists of interconnected wires forming larger mesh cells, and the second level consists of grid lines forming smaller mesh cells within each wire. This nesting approach systematically organizes complexity while achieving high light transmittance through the hierarchical open structure.
Data Source
AI summary
A planar transparent antenna structure is provided. The planar transparent antenna structure includes a dielectric substrate, a radiation conductive layer and a ground conductive layer. The dielectric substrate has a first surface and a second surface. The radiation conductive layer is disposed on the first surface of the dielectric substrate. The ground conductive layer is disposed on the second surface of the dielectric substrate. The radiation conductive layer and the ground conductive layer are composed of a plurality of wires connected in a mesh manner. Each of the wires is composed of a plurality of grid lines connected in a mesh manner.