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Design and Fabrication of Aka-Band Dielectric-Loaded Traveling-Wave Tube

We have designed, fabricated, and are currently testing a Ka-band dielectric-loaded traveling-wave tube with a very high bandwidth. Applications for high power mm-wave sources span biology, medicine, communications, national security, and other areas. One of these applications, high resolution imaging using synthetic aperture radar techniques, requires a power source with an average power level of 1 kW and the bandwidth of 10 GHz. We present a novel Ka-band TWT architecture that approaches these requirements.