An approach of generating broadband Bessel beams is presented. The broadband Bessel beams are produced by a gradient index (GRIN) metamaterial lens illuminated by broadband waveguide antenna. The metamaterial lens is constructed with multi-layered structure and each layer is composed of GRIN metamaterials. The metamaterials are designed as dielectric plates printed with metallic patterns in the...

In millimeter wave (mmWave) communication, lens antenna array has been considered as a potential technique to combat the severe path loss. However, blockage effect still exists. To address this issue, we design an intelligent reflecting surface (IRS) assisted wideband mmWave communication system with limited radio frequency (RF) chains. This is first attempt integration of IRS and array. The de...

Multibeam lens antennas are useful for 5G mobile communication systems. For multibeam design, feed position determination of specified becomes an important subject. The data can be obtained from focal region ray tracing. In this paper, asimple and convenient tracing method by using the MATLAB function “polyxpoly” is proposed. To evaluate program, on conventional hyperbolic planar, spherical con...