For citations:

Pasternak Yu., Ishchenko E., Pendyurin V., Fedorov S. Use of Active Metamaterial as a Phase Shifter Integrated into the Waveguide. Proceedings of Telecommunication Universities. 2021;7(1):54-62. (In Russ.) https://doi.org/10.31854/1813-324X-2021-7-1-54-62