By suppressing interference through beam nulling, the isolation angle can be reduced, thereby expending the serviceable range of satellites. Simulation results validate the effectiveness of the ...

Abstract: Spatial processing of signals is taking into account the mutual influence of the antenna array elements. The change in the antenna array matrix of the mutual impedances leads to a mismatch ...

Brig. Gen. Matthew Braman, director of Army Aviation, said a temporary control tower antenna placed in the wrong location caused military air traffic controllers to lose contact with the Black ...

Scientists estimate those thrusters could fail as early as Fall 2025. The antenna on Earth responsible for sending commands to both Voyager 1 and Voyager 2 will be offline for several months.