Solid Dielectric RF Waveguide with Metal Coating
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Solution Overview
Problem
Existing waveguide devices are costly and bulky due to their multi-piece assembly and use of air as a dielectric, which affects RF wave propagation and hinders miniaturization.
Innovation Solution
A low-cost waveguide device formed by a solid dielectric material with exterior surfaces partially or wholly covered in metal, eliminating the need for assembly and allowing RF waves to propagate through a voidless dielectric, reducing manufacturing costs and physical size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If air is used as dielectric in hollow cavities with metal enclosures, then RF wave propagation is achieved, but the device becomes bulky and expensive due to multi-piece assembly
Solution Approach 1:
The patent combines the dielectric and metal enclosure into a single integrated waveguide structure. The metal layers are formed directly on the exterior surfaces of the dielectric body, eliminating the need for separate hollow cavities and multiple assembly steps, thus reducing device size while maintaining RF propagation functionality
Solution Approach 2:
The patent uses a composite structure consisting of a dielectric material with metal layers deposited on its exterior surfaces. This composite design replaces the traditional air-filled metal enclosure with a solid dielectric-metal composite that achieves the same RF wave guidance function in a more compact form
2Ease of manufacture
If multi-piece assembly is used to manufacture waveguide devices, then manufacturing flexibility is achieved, but costs increase and alignment precision deteriorates
Solution Approach 1:
The patent merges multiple components (dielectric and metal enclosure) into a single monolithic structure where metal layers are directly formed on the dielectric surfaces. This eliminates assembly operations and associated alignment precision issues while maintaining manufacturing flexibility through integrated fabrication processes
3Ease of manufacture
If multi-piece assembly is used to manufacture waveguide devices, then manufacturing flexibility is achieved, but manufacturing costs increase
Solution Approach 1:
The patent combines multiple manufacturing steps and components into a single integrated fabrication process. By forming metal layers directly on the dielectric exterior surfaces in one manufacturing operation, the patent eliminates complex assembly procedures while maintaining ease of manufacture through streamlined production
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 results in reduced manufacturing costs, improved RF performance, and miniaturization of waveguide devices, enabling smaller and more efficient RF wave propagation without alignment issues or RF leakage.
Implementation Method 1
the metal is disposed on the dielectric by electro-plating the metal thereupon
Implementation Method 2
the dielectric is voidless and adapted to propagate radio frequency radiation from the exterior input surface to the exterior output surface
Implementation Method 3
The radio frequency waves propagated through the waveguide, travel in the air and bounce off the metal surfaces of the enclosure
Data Source
AI summary
A radio frequency waveguide is disclosed. The radio frequency waveguide includes: a dielectric including an exterior input surface, an exterior output surface and other exterior surfaces; and a metal disposed on the other exterior surfaces of the dielectric, wherein the dielectric is voidless and adapted to propagate radio frequency radiation from the exterior input surface to the exterior output surface.