Collins Aerospace has demonstrated a “directional communications system” that could allow unmanned air vehicles (UAVs) to securely transmit battlefield data while operating in contested airspace. Such ...

Designed for long-distance directional communication among wireless links, the PN Series panel-mount antennas specify 16 dBi of gain and 23º-horizontal/23º-vertical ...

Directional modulation techniques represent a class of physical layer security methods that confine correctly demodulated signals to predetermined spatial or range-angular directions, while scrambling ...

Audfly’s directional sound modules, for instance, have been integrated into public-facing systems in airports and corporate lobbies. Their compact design allows them to be mounted inside interactive ...

The Xinger-brand components for 450-MHz applications consist of the 11303-3 90° hybrid coupler and the 11303-20 directional coupler. Both operate over the 380- to 520-MHz range with 450-470 narrowband ...