Conformal transformation optics is employed to enhance an H-plane horn's directivity by
designing a graded-index all-dielectric lens. The transformation is applied so that the phase …

This article presents four different approaches utilized in beam tilting that are based on the
phase gradient (phase shifting) surfaces. Each approach is individually analyzed and then …

Orbital angular momentum (OAM) vortex waves generated by conventional spiral phase
plates and metasurfaces have been widely discussed. In this work, we propose an …

Gradient-index (GRIN) lenses have paved the way for electromagnetic wave tailoring due to
their spatially varying permittivities, which enable continuous manipulation of the wave as it …

We present a biocompatible high-contrast low-loss antenna (HCLA) designed for efficient
into-body radiation for applications as diverse as medical telemetry, sensing, and imaging …

In this work, we present a lens based on a thin hollow ABS spherical container structure,
which can be filled up with different compatible liquids. The acoustic jet can be dynamically …

Gradient index (GRIN) lenses embody a powerful technology that enables control of
electromagnetic wave propagation over wide frequency bands. However, GRIN lenses that …

This study introduces a groundbreaking antenna system, the directive Metasurface Half-
Maxwell Fish-Eye (MHMF) lens antenna, tailored specifically for Internet-of-Things (IoT) …

Gradient refractive index (GRIN) structure is an optical result generated by a progressive
variation of the refractive index of a host medium to improve the design of new microwave …

An analytical expression for the reflection and transmission coefficients (TE and TM) for
inhomogeneous planar layer (IPL) with variable inverse square relative permittivity is …