Multilayer Waveguide Transition Device for Impedance Matching
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Solution Overview
Problem
Multilayer waveguides experience significant energy losses and parasitic radiations due to poor electrical contact between coupled guide channels, which worsens with manufacturing defects and limited scalability beyond 10-20 layers, making them inefficient for high-frequency applications.
Innovation Solution
A multilayer waveguide design incorporating a transition device with adaptation channels and electrically-conductive walls spaced by a dielectric interlayer, optimizing impedance to achieve zero input impedance and minimizing energy losses, allowing for improved electromagnetic wave transmission across multiple layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multilayer waveguides are constructed with multiple superimposed layers to guide electromagnetic waves, then the wave transmission capability is improved, but energy losses and parasitic radiations increase due to poor electrical contact between coupled guide channels
Solution Approach 1:
A dielectric interlayer is introduced as an intermediary component between two superimposed layers containing coupled guide channels. This dielectric interlayer enables electromagnetic wave transmission while maintaining electrical isolation, thereby reducing energy losses and parasitic radiations associated with direct electrical contact between layers.
Solution Approach 2:
The patent transitions from a planar single-layer waveguide structure to a three-dimensional multilayer configuration with vertical stacking. This dimensional expansion allows increased transmission capability through multiple layers while the dielectric interlayer manages the electrical contact issues that arise in this stacked architecture.
2Reliability
If the number of superimposed layers is increased to enhance wave transmission, then the transmission capability is improved, but manufacturing complexity and alignment precision requirements increase
Solution Approach 1:
The dielectric interlayer serves as a manufacturing intermediary that provides a standardized interface between layers. This intermediary component facilitates precise alignment and assembly of multiple layers while maintaining electrical isolation, thereby reducing the impact of manufacturing tolerances on overall alignment precision.
Solution Approach 2:
The waveguide structure is segmented into multiple discrete layers separated by dielectric interlayers. This segmentation allows each layer to be manufactured and assembled independently, reducing the cumulative alignment precision requirements compared to a monolithic multi-layer structure.
3Adaptability or versatility
If traditional multilayer waveguide structures are used, then wave transmission is achieved, but the number of layers is limited to 10-20 layers due to manufacturing constraints
Solution Approach 1:
The patent employs vertical stacking of multiple layers in the third dimension, enabled by dielectric interlayers, to achieve a higher number of layers (beyond the traditional 10-20 layer limit) without significantly increasing manufacturing complexity. This dimensional approach allows scalable layer multiplication.
Solution Approach 2:
The dielectric interlayer serves multiple functions simultaneously: it provides electrical isolation between layers, enables wave transmission, and acts as a standardized manufacturing interface. This multi-functionality simplifies the overall manufacturing process while allowing increased layer count.
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 significantly reduces energy losses and reflection, enabling efficient electromagnetic wave transmission across a wide frequency band, increasing the number of layers, and tolerating manufacturing defects, thus enhancing the design and manufacturing simplicity of multilayer waveguides and antennas.
Implementation Method 1
allowing transmitting an electromagnetic wave through said dielectric interlayer and between these two coupled guide channels
Implementation Method 2
each adaptation wall extending according to the longitudinal direction over a length selected so as to obtain an impedance, called input impedance, at least substantially zero between the adaptation walls of this adaptation channel
Data Source
AI summary
The present disclosure relates to a multilayer electromagnetic waveguide that includes a plurality of layers forming guide channels for an electromagnetic wave, and at least one transition device including at least one dielectric layer between two guide channels, referred to as coupled guide channels, extending as an extension. Each transition device includes at least one adaptation channel extending in a longitudinal direction, and each adaptation channel is defined by two electrically conductive walls. At least one wall extends along the dielectric spacer layer from one end of the coupled guide channel, over a length suitable for optimizing the transmission of an electromagnetic wave between the two coupled guide channels.