Ukrainian forces destroy rare Russian signals intelligence system

The Raid unit from Ukraine’s Unmanned Systems Forces has destroyed an Artikul-S, a rare Russian signals intelligence system, ...

Starlink in Iran: How the regime jams the service and what helps against it

In Iran, not only mobile and fixed networks are jammed, but also Starlink. We explain how this is likely achieved despite ...
IEEE

Robust Beamforming for Superdirective Antenna Arrays and Experimental Validations

Abstract: Superdirective antenna arrays have the potential to increase array directivity proportional to the square of the number of antenna elements. However, the high sensitivity problem of ...
IEEE

A Wideband Millimeter-Wave Antipodal Vivaldi Antenna Array with Novel Gain-Boosting and Decoupling Techniques

Abstract: In this paper, a wideband 1×4 antipodal Vivaldi antenna (AVA) array based on a modified AVA radiator incorporating spoof surface plasmon polaritons (SSPPs) is proposed and verified. Firstly, ...