Directional Coupler Segmentation for Post-Formation Coupling Adjustment
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Solution Overview
Problem
Existing directional couplers face difficulties in adjusting the degree of coupling after the formation of a surface mounted component, requiring significant time and resources to redesign and re-manufacture to achieve the desired coupling levels.
Innovation Solution
The directional coupler design includes a surface mounted component and a mounting substrate, where the degree of coupling is determined by the coupling between lines formed in the surface mounted component and those on the substrate, allowing for adjustment of the coupling by modifying the arrangement of lines on the substrate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the degree of coupling is adjusted after formation of the surface mounted component, then the coupling accuracy is improved, but the manufacturing complexity increases
Solution Approach 1:
The directional coupler is divided into two separate parts: a surface mounted component containing the first and third lines, and a mounting substrate containing the second line. This segmentation allows the coupling degree to be adjusted by modifying the mounting substrate after the surface mounted component is formed, without requiring re-manufacturing of the entire device.
Solution Approach 2:
The adjustment capability is extracted from the surface mounted component and placed in the mounting substrate. By forming the second line on the mounting substrate rather than integrating it into the surface mounted component, the patent enables post-formation adjustment of coupling characteristics through substrate modification.
2Manufacturing precision
If redesign and re-manufacturing is performed to adjust coupling degree, then the coupling accuracy is improved, but the production time and cost increase
Solution Approach 1:
By separating the directional coupler into a surface mounted component and a mounting substrate, the patent enables adjustment of coupling degree through simple modifications to the substrate rather than complete re-manufacturing, significantly reducing production time and cost.
3Ease of manufacture
If the coupling degree is fixed during surface mounted component formation, then the manufacturing process is simplified, but the adaptability to different mounting substrates decreases
Solution Approach 1:
The patent separates the directional coupler into independent components, allowing the surface mounted component to be manufactured with fixed coupling characteristics while the mounting substrate provides adaptability through configurable second line arrangements.
Solution Approach 2:
The mounting substrate is designed with dynamic configurability, allowing the second line to be positioned at different locations and orientations to adapt to various mounting scenarios and achieve desired coupling degrees without re-manufacturing the surface mounted component.
Data Source
AI summary
A directional coupler (1) includes a surface mounted component (10) and a mounting substrate (20) on which the surface mounted component (10) is mounted. Among a main line and a sub line of the directional coupler (1), the main line is formed of a first line (31) and a second line (32), one end (311) of the first line (31) and one end (321) of the second line (32) being connected to each other, the sub line is formed of a third line (33). The first line (31) and the third line (33) are formed in the surface mounted component (10). The second line (32) is formed on or in the mounting substrate (20). Furthermore, another end (312) of the first line (31) and another end (322) of the second line (32) may be connected to each other.