Corrugated Rectangular Waveguide Tunable Backward Wave Oscillator for Terahertz Applications

Mineo, Mauro and Paoloni, Claudio (2010) Corrugated Rectangular Waveguide Tunable Backward Wave Oscillator for Terahertz Applications. IEEE Transactions on Electron Devices, 57 (6). pp. 1481-1484. ISSN 0018-9383

Abstract

A tunable backward wave oscillator (BWO) for terahertz applications is proposed. The use of a corrugated rectangular waveguide as the slow-wave structure permits relevant performance together with full compatibility with microfabrication technologies. The design, done using an analytical electromagnetic model, is fully verified by 3-D particle-in-cell simulations. A 20% tuning bandwidth is obtained at a central frequency of 1 THz, demonstrating more than 100-mW output power.