@article {25299,
	title = {Time-domain multi-mode analysis of a THz gyro-TWT amplifier},
	journal = {IEEE Trans. Electron Devices},
	volume = {65},
	year = {2018},
	pages = {1550-1557},
	abstract = {High-order mode employed as the operating mode of a terahertz (THz) gyrotron traveling-wave tube (gyro-TWT) amplifier shows strong dispersion, which deteriorates the device performance in amplifying picosecond THz pulses. Theoretical investigation of a THz gyro-TWT amplifier with a lossy cylindrical circuit is carried out to study the problems, such as lossy structure design, parameters selection, frequency-domain performance, and time-domain dynamics. The robust high growth rate low-kz amplification and the broadband high-kz amplification are two preferred operation conditions. The revealed characteristics are also useful for developing THz gyro-TWTs with other kinds of over-moded circuits.},
	url = {https://ieeexplore.ieee.org/document/8306118},
	author = {Chao-Hai Du and Shi Pan and Hui-Qi Bian and Pu-Kun Liu}
}
