Abstract Space-time-modulated metastructures characterized by spatiotemporally varying
properties have recently attracted great interest and become one of the most fascinating and …

The emergence of new technological needs in 5 G/6 G networking and broadband satellite
internet access amplifies the demand for innovative wireless communication hardware …

This article covers recent advances in the fusion of metasurface antenna design and
computational imaging (CI) concepts for the realization of imaging systems that are planar …

Mobile devices, climate science, and autonomous vehicles all require advanced microwave
antennas for imaging, radar, and wireless communications. We propose a waveguide-fed …

High-directivity antenna systems that provide 2-D beam steering by rotating a pair of phase-
gradient metasurfaces (PGMs) in the near field of a fixed-beam antenna, hereafter referred …

A programmable metasurface based on a substrate-integrated waveguide (SIW) is proposed
to realize a dynamic-pattern antenna, which satisfies the critical needs of low cost, ease of …

We present a systematic design method for a cylindrical conformal array of rectangular
waveguide-fed metasurfaces. The conformal metasurface consists of multiple curved …

A liquid crystal-based beam-steering leaky-wave holographic antenna is designed with
decoupling structure. Since the distance between elements in holographic antennas is …

This work presents a computational imaging (CI) system capable of retrieving 3D images of
the area under inspection. The system is based on the use of two linear dynamic …

We confirm experimentally that the essential electromagnetic properties of a single,
waveguide-fed, tunable metamaterial radiator can be described within a coupled dipole …