Conductive Trace Printing for Complex Antenna Geometries
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Solution Overview
Problem
Current methods for manufacturing conductive elements, such as antennas in portable devices, face challenges including high costs, limited flexibility in manufacturing processes, and the need for dedicated facilities, which increases capital investment and transportation costs. Additionally, existing technologies struggle with complex geometric designs and varying metallic densities, requiring inefficient manufacturing processes.
Innovation Solution
A method and apparatus that utilize multiple printing systems with different deposition technologies to form conductive trace patterns on substrates, allowing for the creation of conductive elements with complex geometries and varying metallic densities, while reducing costs and integrating manufacturing with final product assembly. This involves analyzing files to define domains based on geometry or trace characteristics and sending output to appropriate printing systems, ensuring electrical continuity through overlapping traces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional antenna manufacturing methods are used, then manufacturing precision and electrical performance are maintained, but manufacturing cost and capital investment increase significantly
Solution Approach 1:
The patent replaces traditional mechanical manufacturing processes (stamping, molding, assembly) with direct digital printing technology. The printing system deposits conductive materials layer by layer to form antenna structures directly on the substrate, eliminating the need for separate manufacturing and assembly facilities, thereby reducing capital investment while maintaining electrical performance through precise digital control of material deposition.
Solution Approach 2:
The patent changes the manufacturing parameters from traditional batch processing to continuous digital printing. By adjusting printing parameters such as deposition rate, layer thickness, and material composition dynamically during the printing process, the system can optimize both cost efficiency and electrical performance for different antenna designs without requiring facility changes or retooling.
2Productivity
If dedicated manufacturing facilities are established, then production capability is ensured, but capital investment and transportation costs increase
Solution Approach 1:
The patent makes the printing system universal by designing it to handle multiple antenna types, geometries, and material configurations within a single device. The system can print different conductive materials (silver, copper, aluminum) and create various antenna patterns (planar, three-dimensional, conformal) on different substrates, eliminating the need for dedicated facilities for each product type while maintaining high production capability.
Solution Approach 2:
The patent merges the antenna manufacturing function with the final product assembly process. The printing system is integrated into the assembly line, allowing antennas to be manufactured and assembled in a single continuous process, thereby eliminating separate manufacturing facilities and reducing transportation costs between facilities while maintaining productivity.
3Reliability
If complex geometric designs are implemented, then antenna performance is improved, but manufacturing complexity increases
Solution Approach 1:
The patent introduces dynamic control to the printing process, allowing real-time adjustment of printing parameters based on the geometric complexity of the antenna design. The system can dynamically modify deposition rates, layer orientations, and material compositions during printing to accommodate complex three-dimensional geometries and varying metallic densities, thereby achieving high antenna performance without proportionally increasing manufacturing process complexity.
Solution Approach 2:
The patent applies local quality control by allowing different regions of the antenna to be printed with different material properties and geometric characteristics. The printing system can vary material composition, layer thickness, and deposition density at different locations on the antenna structure, enabling optimization of local electromagnetic properties to achieve overall high performance while maintaining manageable manufacturing complexity through digital control.
4Manufacturing precision
If varying metallic densities are used, then electrical performance is optimized, but process complexity increases
Solution Approach 1:
The patent utilizes parameter changes by dynamically adjusting material composition and deposition parameters during the printing process. The system can vary the concentration of conductive particles, binder content, and layer density at different locations and times during printing, enabling precise control of metallic density to optimize electrical performance while managing process complexity through automated digital control rather than manual intervention.
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 solution enables the efficient and cost-effective manufacturing of conductive elements with complex geometries, reducing capital investment and integration costs, while maintaining electrical performance, and allowing for the integration of antenna manufacturing with final product assembly.
Implementation Method 1
deposition of conductive materials
Data Source
AI summary
A conductive element such as an antenna, for use in electronic devices, including mobile devices such as cellular phones, smartphones, personal digital assistants (PDAs), laptops, and wireless tablets, and methods of, and apparatus for, forming the same. In one exemplary aspect, the present disclosure relates to a conductive antenna formed using deposition of conductive fluids as well as the method and equipment for forming the same. In one embodiment, a complex (3D) conductive trace is formed using two or more different print technologies via creation of different domains within the conductive trace pattern.