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The terahertz (THz) region of the electromagnetic spectrum, spanning from 100 GHz through 10 THz, become more and more import for a wide range scientific, military and commercial applications day by day. This paper presents a design of novel waveguide to suspended microstrip probe transition at terahertz atmospheric window 220GHz using sector step impedance matching circuit by Advanced Design System...
Operation of a gyro-TWT amplifier with helical interaction waveguide is investigated by means of nonlinear self-consistent code. Simulation results are in good agreement with reported experimental observation. Reduced sensitivity to the electronspsila velocity spread and broad bandwidth of this type of gyro-device are demonstrated.
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