In recent years, microwave wireless power transmission (MWPT) has emerged as a
promising technology for supplying energy by receiving radiative power without wires and …

Over the past 36 years much research has been carried out on Bessel beams (BBs) owing to
their peculiar properties, viz non-diffraction behavior, self-healing nature, possession of well …

We present numerical simulations of the near-field focusing capabilities of a dynamically
reconfigurable holographic metasurface aperture. The aperture consists of a parallel-plate …

A high-order Bessel vortex beam carrying orbital angular momentum (OAM) is generated by
using multilayer amplitude-phase-modulated surfaces (APMSs) at 10 GHz. The APMS …

A radially periodic 2-D leaky-wave (LW) antenna is studied for the generation of zeroth-order
Bessel beams within a limited spatial region and over a wide-frequency range. The antenna …

In this communication, we present a theoretical analysis, design, and fabrication of a limited-
diffractive planar Bessel beam launcher, that exhibits a zeroth-order Bessel profile in the …

A wideband phase shifting surface (PSS) antenna is presented with stable and large quasi-
nondiffraction range. The operation principles and design procedures for the wideband near …

This chapter illustrates the capabilities of non-diffractive Bessel beams for near-field
focusing. After a brief introduction of the non-diffractive phenomenon and its origin, the …

This paper aims to investigate and design a radial line slot array antenna (RSLA) with
closed ring resonator (CRR) for return loss improvement. The CRR printed on a dielectric …

This article proposes a novel nondiffractive Bessel beam launcher based on discrete
dielectric lens (DDL) antenna with 2-D beam-scanning capability operating at 300 GHz. The …