Composite Substrate Circulator Fabrication via Rod Sleeve Segmentation
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Solution Overview
Problem
The production of wideband circulators with composite ferrite substrates is complex and costly due to the difficulty in manufacturing and assembling the arrayed ferrite structures, such as disks and rings with varying magnetic properties, which are essential for extending bandwidth compared to monolithic substrates.
Innovation Solution
A method is developed to fabricate composite substrate circulator components by assembling rods and sleeves in a block, dividing them to form plates with arrayed ferrite structures, and incorporating gap sealing to facilitate efficient production and assembly of multiple substrates, reducing costs and improving yield.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If composite ferrite substrates with arrayed ferrite structures (disks and rings with varying magnetic properties) are used to extend bandwidth, then the bandwidth capacity is improved, but the manufacturing complexity and cost increase
Solution Approach 1:
The composite ferrite substrate is segmented into multiple discrete ferrite structures (disks and rings) with different magnetic properties, which are then arrayed in specific patterns. This segmentation allows each element to contribute differently to the overall bandwidth performance while enabling modular manufacturing approaches.
Solution Approach 2:
Different regions of the substrate have ferrite structures with locally optimized magnetic properties (different saturation magnetizations, coercive forces, or resonance frequencies). This local quality variation enables broadband operation by allowing different frequency ranges to be handled by different regions, while the manufacturing process can be standardized across the substrate.
2Adaptability or versatility
If composite ferrite substrates with arrayed ferrite structures are used to extend bandwidth, then the bandwidth capacity is improved, but the production cost increases
Solution Approach 1:
By segmenting the substrate into standardized ferrite disk and ring structures, the manufacturing process can be broken down into repeatable steps. These segmented components can be manufactured using automated processes and then assembled in controlled patterns, reducing overall production cost compared to custom fabrication.
Solution Approach 2:
The ferrite structures are designed with universal geometric patterns (disks and rings) that can serve multiple functions across different frequency bands. This universality allows the same basic manufacturing processes and component types to be used for producing substrates for different bandwidth requirements, economies of scale in component production, and reducing tooling and process development costs.
3Productivity
If multiple composite substrates are manufactured simultaneously, then the production efficiency is improved, but the assembly complexity increases
Solution Approach 1:
The manufacturing process segments the substrate production into identical or similar batches, where each batch follows the same fabrication steps. This segmentation enables parallel processing of multiple substrates simultaneously while maintaining consistent quality, and the standardized segments facilitate straightforward assembly procedures.
Solution Approach 2:
Multiple substrate manufacturing operations are merged into a single production run or batch process, where tools, materials, and processes are shared across all substrates being manufactured. This merging achieves economies of scale and improves productivity, while the resulting substrates have consistent characteristics that simplify subsequent assembly operations.
Data Source
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AI summary
A method for making a composite substrate circulator comprising disposing a plurality of sleeves about a plurality of rods, disposing the plurality of rods and the plurality of sleeves in a plurality of openings in a block to form an assembly, and dividing the assembly to form a plurality of plates. The magnetic saturation (4PiMs) values of the rods and sleeves are chosen to decrease radially (rod has the highest 4PiMs). In addition, a method for making a composite substrate circulator component can include disposing a sleeve about a rod, and disposing the rod and the sleeve in an opening in a block to form an assembly. The rod and/or the sleeve can have a plurality of longitudinally spaced recesses. Additionally, the method can include dividing the assembly at the longitudinally spaced recesses to form a plurality of plates.