Antenna requirements for software defined radio (SDR) and cognitive radio (CR) systems
are reviewed and the resulting challenges are discussed. Both concepts imply capabilities …

A novel double-layered vertically stacked substrate integrated waveguide leaky-wave
antenna (SIW LWA) is presented. An array of vias on the narrow wall produces leakage …

There has been a growing interest in the applications of wireless sensor networks in
unattended environments. In such applications, sensor nodes are usually deployed …

This manuscript introduces a 5G radio access network architecture concept based on ultra-
dense wavelength division multiplexing (UDWDM) and incorporating an optical fronthaul …

Hardware complexity reduction is a key concept towards the design and implementation of
next generation broadband wireless networks. To this end, the goal of the study presented in …

Dynamic metasurface antennas (DMA) provide a solution to form compact, cost-effective,
energy-efficient multiple-input-multiple output (MIMO) arrays. In this paper, we implement a …

This paper proposes a novel design of a dual-broadband dual-polarized antenna for mobile
communication base stations. The proposed antenna is Fylfot-shaped and covers 0.7–0.96 …

Löschian numbers are a topic of investigation in scientific fields such as spatial economics,
socio-economic geography, geometry, and number theory. This is because these numbers …

Dynamic metasurface antennas (DMA) have been proposed for massive multiple-input
multiple-output (MIMO) and millimeter wave applications due to their ability to create dense …

Key blocker requirements of software defined radio receivers are identified from first
principles. Three challenges are derived from these requirements, the need for passive filter …