Skip to main content

Thank you for visiting You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

  • News & Views
  • Published:


Topological integrated circuits for 5G and 6G

On-chip Floquet photonic topological insulators, which are based on switched-capacitor circulators, could be used to create hybrid electronic–photonic topological integrated circuits for emerging communication technologies.

This is a preview of subscription content, access via your institution

Relevant articles

Open Access articles citing this article.

Access options

Buy this article

Prices may be subject to local taxes which are calculated during checkout

Fig. 1: The evolution of wireless communication technology.


  1. Yang, Y. et al. Nat. Photon. 14, 446–451 (2020).

    Article  Google Scholar 

  2. Nagatsuma, T., Ducournau, G. & Renaud, C. C. Nat. Photon. 10, 371–379 (2016).

    Article  Google Scholar 

  3. Elayan, H., Amin, O., Shihada, B., Shubair, R. M. & Alouini, M.-S. IEEE Open J. Commun. Soc. 1, 1–32 (2020).

    Article  Google Scholar 

  4. Akyildiz, I. F., Jornet, J. M. & Han, C. Physical Commun. 12, 16–32 (2014).

    Article  Google Scholar 

  5. Nagulu, A. et al. Nat. Electron. (2022).

    Article  Google Scholar 

  6. Ozawa, T. et al. Rev. Mod. Phys. 91, 015006 (2019).

    Article  Google Scholar 

  7. Rechtsman, M. C. et al. Nature 496, 196–200 (2013).

    Article  Google Scholar 

  8. Sengupta, K., Nagatsuma, T. & Mittleman, D. M. Nat. Electron. 1, 622–635 (2018).

    Article  Google Scholar 

  9. Koenig, S. et al. Nat. Photon. 7, 977–981 (2013).

    Article  Google Scholar 

  10. Webber, J. et al. J. Lightwave Technol. 39, 7609–7620 (2021).

    Article  Google Scholar 

  11. Pärssinen, A. et al. White Paper on RF Enabling 6G: Opportunities and Challenges from Technology to Spectrum (Series: 6G Research Visions) (University of Oulu, 2021);

Download references

Author information

Authors and Affiliations


Corresponding author

Correspondence to Ranjan Singh.

Ethics declarations

Competing interests

The authors declare no competing interests.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Kumar, A., Gupta, M. & Singh, R. Topological integrated circuits for 5G and 6G. Nat Electron 5, 261–262 (2022).

Download citation

  • Published:

  • Issue Date:

  • DOI:

This article is cited by


Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing