Diverse electromagnetic (EM) responses of a programmable metasurface with a relatively
large scale have been investigated, where multiple functionalities are obtained on the same …

An electronically reconfigurable reflectarray antenna (RRA) with 10 × 10 elements is
presented with a detailed design procedure for an improved beam-scanning performance. The …

A systematic study of phase quantization effects on the beam scanning performance of
reconfigurable reflectarray antennas (RRAs) is presented. The spatial feeding scheme of RRA …

An efficient catalyst for chemoselective hydrogenation of nitroaromatics to produce aromatic
amines under mild conditions is highly desirable. In this work, a series of N-doped carbon (…

This communication investigates the application of metamaterial absorber (MA) to waveguide
slot antenna to reduce its radar cross section (RCS). A novel ultra-thin MA is presented, …

A dual-frequency reconfigurable reflectarray (RRA) is proposed and verified experimentally.
The RRA consists of 1600 electronically controllable elements. By integrating only a single …

A design approach aimed at reducing the radar cross section (RCS) of microstrip antenna in
wide frequency band is proposed. First, two different artificial magnetic conductor (AMC) …

The simultaneous improvement in radiation and scattering performance of an antenna is
normally considered as contradictory. In this paper, wideband gain enhancement and radar …

Identification of the active copper species, and further illustration of the catalytic mechanism
of Cu‐based catalysts is still a challenge because of the mobility and evolution of Cu 0 and …

Porous nitrogen-doped carbon black (NCB) was synthesized by facile carbonization of
carbon black (CB) coated with polypyrrole (CB@polypyrrole) and used as a support for Ni …