Dielectric Waveguide-Path Device for Signal Transmission
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Solution Overview
Problem
The existing waveguide techniques are ineffective for accurately and efficiently guiding electromagnetic waves through dielectric waveguides, particularly in configurations where the refractive index of the waveguide material is higher than the surrounding material, and there is a lack of clarity on how to generate and input GH band electromagnetic waves into optical waveguide paths.
Innovation Solution
A dielectric waveguide-path device is designed with a waveguide configuration where the refractive index of the dielectric material is higher in certain directions, allowing for slow electromagnetic wave propagation, with electrodes arranged to facilitate cosine or sine distributions and total reflection, enabling efficient and noise-reduced signal input and output by leveraging lateral vibration modes of the electric field.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a waveguide-tube with metal electrodes is used, then electromagnetic wave guidance is effective, but it cannot be applied to dielectric waveguide-paths with higher refractive index materials
Solution Approach 1:
The invention changes the fundamental parameters of the waveguide structure by transitioning from metal-based waveguide-tubes to dielectric waveguide-paths with controlled refractive indices. By adjusting the refractive index parameters of the dielectric materials and configuring electrodes to create specific electric field distributions (cosine or sine patterns), the invention enables effective electromagnetic wave guidance in dielectric structures that were previously incompatible with conventional waveguide techniques.
2Productivity
If electrodes are arranged to create cosine or sine distribution, then total reflection and efficient signal transmission are achieved, but the device complexity increases
Solution Approach 1:
The invention applies local quality by creating specific cosine or sine distribution patterns of electric fields in localized regions between adjacent electrodes. Rather than requiring complex electrode geometries throughout the entire waveguide, the invention selectively configures electrodes at specific positions to generate the required field distributions only where needed for total internal reflection, thereby achieving efficient signal transmission with moderate structural complexity.
3Reliability
If the waveguide-path dimension is set according to formula 1, then lateral vibration mode continuity is achieved, but manufacturing precision requirements increase
Solution Approach 1:
The invention provides explicit mathematical relationships (Formula 1) that define the precise dimensional parameters required for the dielectric waveguide-path to achieve continuous lateral vibration modes. By establishing clear parameter specifications for waveguide dimensions, refractive indices, and electrode spacing, the invention enables manufacturers to achieve the required precision through controlled parameter selection rather than relying on trial-and-error approaches, thereby reducing overall manufacturing complexity despite the need for precise dimensional control.
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 configuration allows for accurate, efficient, and noise-reduced transmission and output of electromagnetic waves, enabling the selection of desired frequencies and the creation of a filter device that passes only specific frequencies, while maintaining a simple and stable operation.
Implementation Method 1
an electromagnetic wave in a lateral vibration mode of an electric field is transmitted in the form of a cosine distribution or a sine distribution in the Z direction of electromagnetic wave while being totally reflected by both surfaces in the X direction and/or the Y direction of the waveguide-path
Implementation Method 2
the waveguide-path has an input electrode structure in which a plurality of electrodes extending in the X direction and/or the Y direction are arranged at regular intervals with respect to the Z direction, on the inside or the surface thereof
Data Source
AI summary
A refractive index n of a dielectric material is larger than a refractive index of the outside in a lateral direction X and/or a vertical direction Y perpendicular to an electromagnetic wave travelling direction Z, the inside of a waveguide-path has slow electromagnetic wave propagation velocity, compared to an area on the outside, the maximum dimension in the lateral direction and/or the vertical direction of the waveguide-path has a dimension which is specified by a formula below. The formula is: tan(ksa/2)=kf/ks, or tan(ksa/2)=−ks/kf. Here, ks: propagation constant of an electromagnetic wave low-speed area, kf: propagation constant of an electromagnetic wave high-speed area, and a: maximum dimension in the X direction and/or the Y direction of the waveguide-path.