550-W Ka-band pulsed helix TWT for radar applications

L3 Technologies, Electron Devices Division (L3 EDD) has successfully developed a 550-W Ka-band helix TWT that operates over 32 - 36 GHz at 30% duty. The TWT has demonstrated 55% minimum overall efficiency with 41 dB gain and full thermal and RF stability. With this latest Ka-radar-band helix TWT, L3 EDD can now offer both 230-W and 550-W helix TWTs for production operating in the Ka-radar-band (the former developed in 2004). Also, L3 EDD can further utilize 1-kW capability reported in 2007 when there is a market need.