1. V. A. Kaloshin, in Proc. 13th Int. Crimean Conf.: Microwave Devices and Telecommunication Technologies (CriMiCo’03), Sevastopol’, Sept. 8–12, 2003 (Weber, Sevastopol, 2003), p. 383.
2. M. Ettorre, E. Gandini, and R. Sauleau, in Proc. 5th Eur. Conf. on Antennas and Propagation (EUCAP), Rome, Apr. 11–15,
2011 (IEEE, New York, 2011), p. 2947.
3. K. Tekkouk, M. Ettorre, L. Le Coq, and R. Sauleau, IEEE Trans. Antennas Propag. 64, 504 (2016).
4. V. A. Kaloshin, Le Doan Trinh, and E. V. Frolova, J. Commun. Technol. Electron. 64, 756 (2019).
5. V. A. Kaloshin, D. T. Le, and U. N. Vi, Zh. Radioelektron. No. 3 (2020). http://jre.cplire.ru/jre/ mar20/13/text.pdf.