Fiber-optic drones are becoming a weapon of choice for Ukraine and Russia because they are immune to traditional electronic ...

Russia attacked Ukraine with an Iskander missile and more than 80 Shahed drones. The military reported how many were shot ...

They developed a miniaturized traveling-wave tube (TWT), a specialized vacuum tube that amplifies radio frequency (RF) signals in the microwave range. The crucial component for radar systems interacts ...

Chinese engineers create travelling-wave tube which transmits radars with 500 watts of output, previously only possible in ...