Source: China – South China Morning PostIn a defence tech laboratory in Beijing, a research team powers up a vacuum tube about the size of a pistol.
Inside, a stream of electrons surges through thin coiled wires, amplifying microwave pulses ranging from 8 to 18 gigahertz with more than 500 watts of output – performance metrics that until recently were only achievable in devices much bigger.
It is the new heart of China’s advanced radar and electronic warfare systems – a miniaturised travelling-wave tube (TWT), and a symbol of how…Read More