Forward Coupler Strip Conductors Dielectric Grooves
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Solution Overview
Problem
Existing forward couplers for microwave technology face high production costs and difficulty in connecting to other circuits, limiting their practicality for broad bandwidth applications.
Innovation Solution
A coupler design featuring two ribbon conductor lines with specific dielectric grooves and housing configuration, ensuring low production costs and simple integration with other circuit elements, while maintaining optimal electromagnetic properties and mechanical stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional forward coupler designs are used, then electromagnetic functionality is achieved, but production costs are high and connection to other circuits is difficult
Solution Approach 1:
The patent combines multiple functions into a single integrated structure. The housing simultaneously provides mechanical support, electrical insulation, and signal distribution pathways. The conductive elements are integrated directly into the housing structure rather than being separate components, eliminating the need for additional mounting brackets, insulators, or connection adapters that would increase complexity and cost.
Solution Approach 2:
The housing structure serves multiple functions: it provides mechanical support for the coupler elements, acts as an electrical insulator between conductive parts, defines the signal distribution geometry, and provides mounting interfaces for external circuits. This multi-functionality reduces the number of separate components needed, lowering production costs and simplifying connections.
2Stability of the object's composition
If complex housing structures are used, then mechanical stability is improved, but production effort increases
Solution Approach 1:
The housing is designed as a single integrated component that combines mechanical support, electrical insulation, and structural definition functions. This eliminates the need for separate mounting brackets, insulating supports, and alignment fixtures that would be required if these functions were distributed across multiple parts, thereby reducing assembly steps and production effort while maintaining stability.
Solution Approach 2:
The housing employs thin-walled but structurally optimized geometry that provides sufficient mechanical stability through intelligent design rather than excessive material thickness. The conductive elements are positioned within the housing structure to provide both structural support and electrical function, reducing the need for additional reinforcing elements.
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 achieves low production costs and easy integration with other circuits, ensuring precise electromagnetic conditions and reliable signal distribution with minimal manufacturing effort, addressing the limitations of existing couplers.
Implementation Method 1
The strip conductors are preferably guided by a dielectric whose special shape allows the characteristic properties of the common and differential mode to be set optimally
Implementation Method 2
The shape of the dielectric preferably produces different dielectric constants for the common mode and differential mode. The desired behavior of the coupler is thus preferably achieved via the resulting difference between the phase velocities of the common mode and differential mode
Implementation Method 3
The dielectric preferably generates the same characteristic impedances for the common mode and differential mode via its shape. This achieves reliable isolation of the connections adjacent to one end of the coupler
Data Source
Figure 1~2
Figure 3~4
AI summary
The invention relates to a coupler having a first conductor (22) and a second conductor (23), each of which comprises two connections. The conductors (22, 23) run in close proximity to each other and are coupled together. A first connection of the first conductor (22) and a first connection of the second conductor (23) are in close proximity to each other. A second connection of the first conductor (22) and a second connection of the second conductor (23) are in close proximity to each other. A signal does not couple from the first connection of the first conductor (22) to the first connection of the second conductor (23), or it couples thereto only with high attenuation. The signal is divided into largely similar parts by the second connection of the first conductor (22) and by the second connection of the second conductor (23), particularly at a projected frequency. The first conductor (22) and the second conductor (23) are strip conductors.