Terahertz Waveguide Coupling Without Transmission Line Loss
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Signal attenuation occurs in the transmission line, leading to lower coupling efficiency between semiconductor chips and waveguides in high-frequency electromagnetic wave propagation.
Innovation Solution
The terahertz device configures the generating and emitting points of the terahertz element within the transmission region of the waveguide, allowing direct emission and reception of electromagnetic waves, enhancing coupling efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a transmission line is used to connect the semiconductor chip to the waveguide, then the semiconductor chip can be accommodated in a cavity outside the waveguide, but signal attenuation occurs and coupling efficiency decreases
Solution Approach 1:
The patent extracts the terahertz element directly into the waveguide's transmission region, removing it from the external cavity configuration. This eliminates the transmission line connection and directly places the generating and emitting points within the waveguide's electromagnetic field region, thereby resolving the signal attenuation problem while maintaining manufacturing feasibility
Solution Approach 2:
The patent embeds the terahertz element inside the waveguide structure, nesting it within the transmission region. This nested configuration allows the terahertz element to be directly coupled with the waveguide's electromagnetic field without external transmission lines, eliminating signal loss while keeping the overall structure compact and manufacturable
2Ease of manufacture
If the terahertz element is placed outside the waveguide with a transmission line connection, then the structure is simpler to manufacture, but the coupling efficiency with the waveguide is reduced
Solution Approach 1:
The patent uses the waveguide's transmission region as an intermediary medium, placing the terahertz element's generating and emitting points directly within this region. This eliminates the need for external transmission lines and connectors, directly improving coupling efficiency while maintaining a manufacturable integrated structure
Solution Approach 2:
The patent merges the terahertz element with the waveguide structure by positioning it within the transmission region. This combining of components eliminates the separate transmission line connection, directly improving coupling efficiency while creating an integrated structure that remains manufacturable
Data Source
AI summary
A terahertz device includes a terahertz element that allows oscillation and radiation of electromagnetic waves in the terahertz band and a waveguide having a transmission region for transmitting electromagnetic waves. The terahertz element has an element principal surface and an element rear surface which face oppositely, an oscillation point for the oscillation of electromagnetic waves on the element principal surface, and a radiation point for the radiation of electromagnetic waves. The terahertz element is disposed such that the oscillation point and the radiation point are placed in the transmission region.