AI Article Synopsis
- Complex terahertz System-on-Chip (TSoC) circuits need effective connections between their components to handle various frequencies and dimensions.
- This paper explores tapered transmission lines that smoothly transition between different transmission-line configurations, focusing on performance up to 2.0 THz with a spectral resolution of 25 GHz.
- The study demonstrates how these tapers can reduce overall signal loss by shifting from narrow to wider line widths, while also identifying design guidelines to maintain THz pulse quality.
Article Abstract
Complex terahertz (THz) System-on-Chip (TSoC) circuits require ultra-wideband low-loss low-dispersion interconnections between building-block components of various dimensions and characteristics. Tapered transmission lines, which enable the gradual transformation of both physical dimensions and characteristic impedance, are a convenient basis for these interconnections. In this paper, we quantify both experimentally and through simulation, the efficacy of transmission-line tapers connecting two different coplanar-strip transmission-line configurations, for frequencies up to 2.0 THz and with 25 GHz spectral resolution. We demonstrate tapers that enable transitioning from a small device-constrained transmission-line dimension (10 μm line width) to a lower-loss (20-40 μm line width) dimension, as a method to reduce the overall attenuation, and outline design constraints for tapered sections that have minimal detrimental impact on THz pulse propagation.
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| http://dx.doi.org/10.1364/OE.421008 | DOI Listing |
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