A compact wideband Vivaldi Antenna with split ring resonator, for ground penetration radar application is reported in this paper. The Vivaldi antenna is operating in the frequency range from 600 MHz ...

Abstract: As a crucial step for routing establishment in multi-hop mobile ad hoc networks (MANETs), topology discovery (TD) is extremely challenging when directional antennas are used. In this paper, ...

Overview:  High-gain and high-uplink boosters provide stronger coverage in homes, vehicles, RVs, and boats, especially in weak-signal areas.Each booster de ...

An effective way to eliminate the problems caused by dead zones is to install a distributed antenna system (DAS)—technology ...

Yank Technologies, the developer of disruptive long range, high power wireless charging solutions, has been awarded a $1 million Phase III Small Business Innovation Research (SBIR) commercialization ...

SpaceX’s reputation as the Pentagon’s go-to rocket company is colliding with a far more awkward story in orbit: a researcher ...

Radio signal dead zones can create a potentially dangerous situation for emergency responders, yet dozens of high-rises in Fort Lauderdale have them, city officials say. That means police and ...

Apple’s iPhone already offers satellite-based emergency features allowing users to send SOS messages and contact roadside assistance.

Santa Net is an annual December event where licensed amateur radio operators use RF and EchoLink technology to connect children with Santa Claus on the airwaves.