Y. Li, J. Eisenbeis, X. Wan, S. Bettinga, X. Long, M. B. Alabd, J. Kowalewski, T.
Cui, T. Zwick, 2021, A programmable-metasurface based tdma fast beam switching communication
system at 28 ghz, IEEE Antennas and Wireless Propagation Letters, Vol. 20, No. 5,
pp. 658-662