A Novel Folded Waveguide for V-Band TWT

作者：Liao, Mingliang^*; Wei, Yanyu; Wang, Hailong; Xu, Jin; Liu, Yang; Gong, Yubin; Wang, Wenxiang; Park, Gun-Sik

来源：IEEE Transactions on Plasma Science, 2015, 43(12): 4088-4091.

DOI：10.1109/TPS.2015.2490119

• Novel folded waveguide (FW)
• V-band TWT.

A V-band traveling-wave tube (TWT) prevails nowadays as an amplifier device for satellite communication and electronic countermeasures. The folded waveguide (FW) is a promising slow-wave structure for V-band TWT with advantages of high power and considerable bandwidth. A novel FW periodically loaded with right-angled rectangular grooves is analyzed for the purpose of gaining higher power within a shorter circuit. The radio-frequency characteristics are investigated by numerical simulation, and the nonlinear large-signal performance of such a TWT is analyzed by a 3-D particle-in-cell code MAGIC. Compared with normal circuits, a relatively higher continuouswave power (60-80 W) and a similar bandwidth (5 GHz) at V-band are predicted by simulation. Meanwhile, the novel circuit is also shorter when the output power becomes saturated. It, therefore, will favor the miniaturized design of a broadband and high-power V-band TWT.

• 出版日期2015-12
• 单位电子科技大学