Integrated PCB Resonator for Waveguide Junction Decoupling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing level measurement technologies face challenges in achieving clean coupling and decoupling of high-frequency electromagnetic waves into waveguides, particularly at higher frequencies, due to mechanical tolerance issues and the need for external resonators.
Innovation Solution
A waveguide transition with a multi-layer printed circuit board, integrated decoupling unit, and resonator, where the decoupling unit is embedded within the printed circuit board, eliminating the need for external resonators and reducing mechanical tolerance problems, and allowing for efficient coupling of high-frequency waves up to 100 GHz.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an external resonator is used for decoupling electromagnetic waves, then decoupling function is achieved, but mechanical tolerance problems and assembly complexity increase
Solution Approach 1:
The patent merges the resonator with the printed circuit board substrate, integrating the decoupling function directly into the PCB structure. The resonator is formed as part of the substrate itself rather than being a separate external component, which eliminates mechanical tolerance issues between separate parts and reduces assembly complexity while maintaining the decoupling function.
2Reliability
If the resonator is attached to the printed circuit board, then decoupling is achieved, but mechanical tolerance alignment requirements increase
Solution Approach 1:
The resonator is integrated directly into the printed circuit board substrate, forming a unified structure. This eliminates the need for separate attachment and alignment of an external resonator, thereby removing mechanical tolerance and alignment precision requirements while maintaining decoupling performance.
3Length of moving object
If frequency is increased to reduce dimensions, then focusing performance improves, but demands on electronics and coupling cleanliness increase
Solution Approach 1:
The integrated resonator structure provides clean coupling between the waveguide and feed line by incorporating the decoupling function directly into the PCB substrate. This integration ensures that even at higher frequencies where coupling challenges increase, the electromagnetic energy is properly managed and transferred, maintaining coupling cleanliness while enabling reduced dimensions.
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
This solution enables reliable and efficient decoupling of high-frequency electromagnetic waves into waveguides without mechanical adjustments, reducing assembly costs and complexity, and is suitable for frequencies above 60 GHz, improving the accuracy and reliability of level measurement systems.
Implementation Method 1
a decoupling unit, comprising a coupling element and a resonance space, for decoupling the electromagnetic waves from the feed line into a waveguide
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
According to one exemplary embodiment of the present invention, a waveguide junction is specified for a filling level radar, which junction has a printed circuit board in which a resonator is integrated. The resonator is used together with a coupling element to output radio-frequency waves from a supply line, which is likewise integrated in the printed circuit board, into a waveguide which is screwed to the printed circuit board. There is therefore no need for any external resonator.