Figure 5.
Photographs of the fabricated programmable metasurface. (a) Transmitting control unit (b) receiving processing unit (c) and receiving antenna (d) respectively, for the DDM wireless communication system.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.