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The design of a 340GHz two-beam folded waveguide (FW) traveling-wave amplifier with >4 W of power over with the input power of 20mW is presented. The amplifier is driven by two electron guns (70mA×2, 14.9kV) and 1T magnetic field. The design is performed by CST Particle Studio. Particle-in-cell (PIC) simulations were carried out to predict and optimize the performance of the folded waveguide TWT.
This paper presents the analysis and design of the pill box input and output windows for THz traveling-wave tube (TWT) amplifier. Both the theoretical mechanism and simulation results are analyzed. The simulation results clearly show a pass band 14 GHz of the window as desired frequency. The results can provide a foundation on the fabricating of THz TWT amplifier.
In this paper, a novel terahertz (THz) extended interaction oscillator (EIO) is presented. Adopting PIC code, design and optimization geometry of EIO is performed, which is composed of ladder loaded rectangular waveguide. In present work, the operation center frequency of THz EIO is 105GHz, and the output power 673W is achieved, the efficiency reaches 12.1%, which is beam voltage and beam current...
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