In this article, the basic principles and the main applications of Huygens' metasurfaces
(HMSs) are reviewed from microwaves to optics. In general, HMSs comprise a thin layer of …

Phase-gradient metasurfaces (PGMs) constitute an efficient platform for deflection of a beam
in a desired direction. According to the generalized Snell's law, the direction of the …

The fruitful progress toward light manipulation in reflective (R) or transmissive (T) geometry
(half‐space) has facilitated strong aspiration towards full‐space wave control. Although R–T …

Electromagnetic wave multiplexing, especially for that occurring at different incidences
(spatial-frequency multiplexing), is pivotal for ultrathin multifunctional interfaces and high …

We theoretically formulate and experimentally demonstrate an analytical formalism for
designing printed circuit board (PCB) metagratings (MGs), exercising individual control over …

Retroreflectors are ubiquitously used in a multitude of applications, such as cloaking,
wireless communication, radar, and antenna, owing to their ability to augment the reflected …

We report that metamaterial-inspired one-dimensional gratings (or metagratings) can be
used to control nonpropagating diffraction orders as well as propagating ones. By accurate …

An accurate equivalent circuit model (ECM) for general multiwire multiorder printed circuit
board (PCB) metagratings (MGs) is developed. The effective impedances of the grating …

Multifunctional metasurfaces have exhibited considerable abilities of manipulating
electromagnetic (EM) waves, especially in full-space manipulation. However, most works …

We present the design, fabrication, and experimental investigation of a printed circuit board
metagrating (MG) for perfect anomalous reflection. The design follows our previously …