This article offers a thorough review of the current state-of-the-art in four-dimensional (4D)
printed antennas and possible adaptable designs. It provides a succinct examination of …

Growing 5G/6G phased-array beam-steering applications, for which liquid crystal (LC) is one
of the enabling technology candidates, have sparked interest in the modulation of the phase …

In this paper, a groove gap waveguide (GGW) low-pass filter is proposed for the first time.
Gap waveguide technology represents an interesting alternative as a low-loss, cost …

In this study, a novel low-cost polishing method for internal surface roughness reduction of
additively manufactured components, developed for waveguide (WG) circuits operating in …

To enhance the surface quality of metal 3D-printed components, magnetic abrasive finishing
(MAF) technology was employed for post-processing polishing. Experimental investigation …

This paper proposes compact and wideband crossover and monopulse comparator based
on the new multi-layer vertical transition of substrate integrated waveguide (SIW). Through …

Two-photon polymerization is a promising fabrication technique for complex 3-D structures
operating at terahertz (THz) given its sub-m resolution with hundreds of mm print volume …

A simulation method is proposed to study the impacts of surface roughness with additional
features, skewness, and kurtosis on the conductor loss in high-frequency transmission lines …

The main objective of this research considered design, fabrication and characterization of
two different carbon-based composite structures as potential radar absorbing materials at …

Metal additive manufacturing (AM) continues to grow and spread into new industries as
advancements in its technology are made. Due to the wider design freedom and rapid …