Stacked Corrugated Waveguide Rings for THz Signal Transmission
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Solution Overview
Problem
Manufacturing corrugated components for high-frequency electromagnetic waves, particularly in the THz range, is challenging due to difficulties in creating precise corrugations with small periods and depths, leading to high power losses and signal deterioration at junctions.
Innovation Solution
The approach involves stacking calibrated metal plates or rings in a hollow guiding rod to create corrugated waveguides, antennas, and cavities, allowing for variable corrugation depths and shapes, and using electric discharge machining (EDM) to cut multiple rings simultaneously, enabling longer segments and easy alignment without signal disruption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional machining techniques are used to create corrugations, then manufacturing precision can be achieved for larger dimensions, but manufacturing becomes difficult or impossible for small corrugation periods and depths required in THz range
Solution Approach 1:
The waveguide is divided into multiple discrete rings stacked along the transmission path. Each ring can be manufactured independently with precise corrugation dimensions, and the stacking approach enables modular assembly. This segmentation allows conventional machining to be applied to individual rings while achieving the required small corrugation periods and depths for THz frequencies.
Solution Approach 2:
The invention transitions from creating corrugations along a continuous linear path to stacking discrete rings in a sequential arrangement. This dimensional reorganization allows each ring to be machined separately with precise control over corrugation geometry, overcoming the limitations of conventional continuous machining for THz-scale features.
2Loss of energy
If corrugated waveguides are manufactured for THz frequencies, then signal transmission efficiency is improved, but power losses increase due to manufacturing imperfections
Solution Approach 1:
By segmenting the waveguide into discrete rings, each with controlled corrugation features, the invention enables precise manufacturing of individual components. The stacking approach allows for better control of corrugation dimensions and reduces cumulative errors that would occur in continuous machining, thereby minimizing power losses due to manufacturing imperfections.
Solution Approach 2:
The invention allows independent adjustment of corrugation parameters (depth, width, period) for each ring in the stack. This parameter control enables optimization of the corrugation geometry to match the specific THz frequency requirements, reducing impedance mismatches and minimizing power losses while maintaining manufacturing feasibility.
3Reliability
If longer waveguide segments are used to reduce junctions, then signal transmission is improved, but manufacturing and alignment become more difficult
Solution Approach 1:
The waveguide is segmented into multiple rings that can be manufactured to standardized lengths and then stacked. This modular approach allows for easier alignment and assembly compared to manufacturing one extremely long continuous waveguide. The discrete ring structure enables precise positioning and reduces alignment difficulties while maintaining signal transmission continuity through proper joint design.
Solution Approach 2:
The rings are pre-manufactured with precise dimensions and corrugation features before assembly. This preliminary manufacturing of individual components with controlled parameters ensures that when stacked, the alignment is facilitated by the pre-established geometric precision, reducing the difficulty of final assembly while maintaining long continuous segments.
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 method enables efficient transmission of electromagnetic signals up to 100 THz with reduced power losses and allows for longer waveguide segments with continuous corrugation, facilitating high-power transmission and easy implementation of active cooling, while overcoming manufacturing limitations of traditional machining techniques.
Implementation Method 1
using electric discharge machining (EDM) to cut multiple rings simultaneously
Data Source
Figure 1(a)~1(b)
Figure 1(c)
Figure 2(a)~2(d)
AI summary
The corrugated component for the transmission and manipulation of electromagnetic signals with frequency up to several THz, comprises an assembly of a plurality of plates stacked together in a hollow guiding rod wherein said plates have at least one aperture of alternating diameter to form a slot or a ridge in alternate fashion, wherein the external shape of said plates corresponds to the internal shape of the hollow guiding rod. The invention also concerns a method for assembling such a corrugated component.