dB Control offers two rack-mount traveling wave tube amplifiers (TWTA) for electronic warfare simulation, RFI testing and other applications requiring 300 to 325 W power in the 2 to 18 GHz range. The dB-4345 TWTA provides 325 W CW output power with 55 dB minimum gain across 2 to 6 GHz, and the companion dB-4311M covers 6 to 18 GHz, providing 300 W CW output with 55 dB minimum gain. Using a wideband, periodic permanent magnet focused, conduction-cooled TWT, the amplifiers support CW and constant envelope, AM, FM and pulse-modulated signals. The TWTA power supply is a low noise, high efficiency design that minimizes any interference to the RF signal path. Both models operate from single phase, 220 VAC power, although the prime power can be customized.
Source: https://www.microwavejournal.com/articles/33439-300w-rack-mount-twtas-cover-2-to-6-and-6-to-18-ghz