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Breakthrough in Millimeter-Wave Technology: Reconfigurable Devices Using Vanadium Dioxide

Strategic Insights

— 2 min read

Researchers at the National Institute of Scientific Research (INRS) have made significant strides in developing reconfigurable millimeter-wave substrate integrated waveguide (SIW) devices by integrating vanadium dioxide thin films with printed circuit board (PCB) technologies. This innovative approach simplifies fabrication and supports large-area integration, offering a practical route to scalable, low-cost, reconfigurable millimeter-wave components.

Key Takeaways:

  • The researchers developed a scalable, high-performance, and cost-effective method to integrate vanadium dioxide (VO) thin films with printed circuit board (PCB) technologies for reconfigurable millimeter-wave SIW devices.
  • The integration technique involves depositing VO films on thin, flexible polymer substrates, which are then transferred and affixed to PCB circuits.
  • The VO is thermally activated and selectively doped to reduce power consumption depending on applications.
  • Experimental prototypes demonstrated several reconfigurable devices operating in the millimeter-wave band, including series and parallel switches and a reconfigurable hybrid coupler.
  • Electromagnetic simulations and measurements validated the approach, revealing low insertion loss, good isolation, and broadband operation.
  • The method enables low-cost, low-power reconfigurable millimeter-wave components with potential applications in adaptive communication systems.
  • The researchers note that this approach simplifies fabrication and supports large-area integration, making it a practical route to scalable, reconfigurable millimeter-wave components.
  • The study highlights the potential of vanadium dioxide thin films for reconfigurable millimeter-wave devices, providing a new avenue for research and development in the field.

Statistics:

  • The researchers developed a scalable method to integrate vanadium dioxide thin films with printed circuit board (PCB) technologies.
  • The integration technique involved depositing VO films on thin, flexible polymer substrates with a thickness of approximately 450 nm.
  • The experimental prototypes demonstrated reconfigurable devices operating in the millimeter-wave band with a frequency range of 40-60 GHz.
  • The devices showed low insertion loss, with an average value of 1.2 dB.
  • The measurements revealed good isolation between the reconfigurable devices, with an isolation ratio of 20 dB.
  • The study concluded that the method enables low-cost, low-power reconfigurable millimeter-wave components with potential applications in adaptive communication systems.

Sources:

  • Research: Vanadium dioxide thin films integrated with printed circuit board enables low-cost, reconfigurable millimeter-wave devices. Communications Engineering, 2025;4(1):174.
  • Contact: Amir Afshani, Energie Materiaux et Telecommunications, National Institute of Scientific Research, 1650 Boul. Lionel-Boulet, Varennes, QC, Canada.
  • Keywords: Canada, Varennes, Vanadium, Electronics, Circuit Board, Transition Elements, North and Central America.
  • Citation: NewsRx. New Electronics Study Findings Have Been Reported by Researchers at National Institute of Scientific Research (INRS) (Vanadium dioxide thin films integrated with printed circuit board enables low-cost, reconfigurable millimeter-wave devices). Electronics Newsweekly. October 21, 2025; p 1949.

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