Additive Waveguide Routing for Compact High-Frequency Signal Guidance
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Solution Overview
Problem
Conventional waveguide structures, such as coaxial cables, limit the routing of high-frequency signals in compact spaces due to restricted connection possibilities and high loss factors, especially at narrow angles.
Innovation Solution
The method involves additive manufacturing using dielectric and conductive materials to create waveguides with microstripe or coaxial structures, allowing for three-dimensional signal guidance through the formation of cavities and conductive layers, enabling arbitrary geometries and reduced signal loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional coaxial cables are used for high-frequency signal routing, then connection possibilities are limited, but signal loss is high especially at narrow angles
Solution Approach 1:
The patent transitions from planar PCB routing to three-dimensional waveguide structures. The waveguide enables signals to be routed freely in space with arbitrary geometries, including tight curves and narrow angles, by utilizing the third dimension. This dimensional change allows complex routing paths that were impossible with conventional coaxial cables while maintaining low signal loss.
2Manufacturing precision
If conventional manufacturing methods are used for waveguide structures, then manufacturing precision is limited, but device complexity increases
Solution Approach 1:
The patent combines multiple manufacturing steps into a single additive manufacturing process. The waveguide structure, including complex three-dimensional geometries, cavities, and conductive elements, is manufactured in one integrated process rather than through multiple sequential steps. This merging of manufacturing operations achieves high geometric precision while avoiding the complexity of multi-step conventional manufacturing.
Solution Approach 2:
The patent utilizes the variable parameters of additive manufacturing (layer thickness, material composition, curing conditions) to achieve precise control over waveguide geometry. By adjusting manufacturing parameters, complex three-dimensional structures with high precision can be produced without increasing device complexity, as the process inherently handles geometric complexity through digital modeling.
3Adaptability or versatility
If additive manufacturing is used to create complex three-dimensional waveguide structures, then routing flexibility improves, but manufacturing process complexity increases
Solution Approach 1:
The patent replaces complex mechanical assembly processes with additive manufacturing. Instead of mechanically assembling multiple waveguide components to achieve complex three-dimensional routing, the entire structure is built additively in one process. This substitution eliminates the need for complex mechanical alignment and assembly while maintaining routing flexibility.
Solution Approach 2:
The additive manufacturing process serves multiple functions simultaneously: it creates the waveguide structure, forms cavities, positions conductive elements, and achieves precise geometric tolerances. This multi-functionality reduces overall manufacturing process complexity compared to conventional methods that would require separate processes for each function.
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AI summary
A method for the additive manufacturing of a waveguide using a dielectric material for the fabrication of dielectric structures and a conductive material for the fabrication of electrically conductive structures is disclosed. The method comprises: additive manufacturing (S110) of at least one base body (110) using the dielectric material; forming (S120) a cavity (120); and additive manufacturing (S130) of a first conductor (131) and a second conductor (132) using the conductive material. The cavity (120) is formed at least partially between the first conductor (131) and the second conductor (132).