Design and Fabrication Aspects of an E-band Double Corrugated Waveguide Traveling Wave Tube

E-band (71 - 76 GHz, 81 - 86 GHz) is commercially used for point to point links. The transmission power of E-band front ends is not higher than a few Watts, produced by solid state amplifiers. Front ends typically use large diameter antennas to ensure the required EIRP. The availability of power in the range of tens of Watts would enable long links and high signal to noise ratio for high modulation scheme. An E-band (71 - 76 GHz) Traveling Wave Amplifiers has been designed to enhance the capacity of future E-band links. This paper discuss the first version of the TWT based on a single section double corrugated waveguide slow wave structure, to test design and fabrication before the fabrication of a more complex 70 W two sections E-band TWT.