Low-cost large-area 100 GHz intelligent reflective surface: electrically column control of screen-printable high phase changing ratio vanadium dioxides.

ABSTRACT: In this paper, we propose for the first time 100 GHz intelligent reflective surface (IRS) using screen-printable, high phase changing ratio vanadium dioxide (VO₂). Sub-THz communications offer advantages such as ultra-high speed and ultra-low latency, it increases communication challenges due to path losses and non-line-of-sight (NLOS) problems. IRS is a representative solution to this NLOS problem. Conventional IRSs using PIN and varactor diodes have difficulty covering the sub-THz band due to the operating frequency limitations of these tuning elements. In this study, we successfully applied screen-printed VO₂ switches to sub-THz IRS to control the reflection angle. The screen-printed VO₂ achieved the highest reported available phase-changing-ratio (PCR)

SUBMITTER: Park E 

PROVIDER: S-EPMC12038606 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature