scholarly journals A 340 GHz High-Power Multi-Beam Overmoded Flat-Roofed Sine Waveguide Traveling Wave Tube

Electronics ◽  
2021 ◽  
Vol 10 (23) ◽  
pp. 3018
Author(s):  
Jinjing Luo ◽  
Jin Xu ◽  
Pengcheng Yin ◽  
Ruichao Yang ◽  
Lingna Yue ◽  
...  
Keyword(s):  
Phase Shift ◽  
Output Power ◽  
Traveling Wave ◽  
Wave Structure ◽  
Traveling Wave Tube ◽  
Wave Tube ◽  
Pic Simulation ◽  
Single Beam ◽  
Particle In Cell ◽  
Machining Errors

A phase shift that is caused by the machining errors of independent circuits would greatly affect the efficiency of the power combination in traditional multi-beam structures. In this paper, to reduce the influence of the phase shift and improve the output power, a multi-beam shunted coupling sine waveguide slow wave structure (MBSC-SWG-SWS) has been proposed, and a multi-beam overmoded flat-roofed SWG traveling wave tube (TWT) based on the MBSC-SWG-SWS was designed and analyzed. A TE10-TE30 mode convertor was designed as the input/output coupler in this TWT. The results of the 3D particle-in-cell (PIC) simulation with CST software show that more than a 50 W output power can be produced at 342 GHz, and the 3 dB bandwidth is about 13 GHz. Furthermore, the comparison between the single-beam sine waveguide (SWG) TWT and the multi-beam overmoded SWG TWT indicates that the saturated output power of the multi-beam overmoded SWG TWT is three times more than that of the single beam SWG TWT.

Symmetric Double V-Shaped Microstrip Meander-Line Slow-Wave Structure for W-Band Traveling-Wave Tube

2012 ◽  
Vol 59 (5) ◽  
pp. 1551-1557 ◽  
Author(s):  
Fei Shen ◽  
Yanyu Wei ◽  
Xiong Xu ◽  
Yang Liu ◽  
Minzhi Huang ◽  
...  
Keyword(s):  
Slow Wave ◽  
Traveling Wave ◽  
Wave Structure ◽  
Slow Wave Structure ◽  
Traveling Wave Tube ◽  
Wave Tube ◽  
W Band ◽  
Meander Line

Design Sheet Beam Gun for THz Traveling-Wave Tube

2014 ◽  
Vol 541-542 ◽  
pp. 470-473 ◽  
Author(s):  
Zhan Liang Wang ◽  
Yu Bin Gong ◽  
Hua Rong Gong ◽  
Jin Jun Feng ◽  
Xiong Xu
Keyword(s):  
Electron Beam ◽  
Traveling Wave ◽  
Design Method ◽  
Terahertz Wave ◽  
Wave Radiation ◽  
Traveling Wave Tube ◽  
Wave Tube ◽  
Electron Device ◽  
Particle In Cell ◽  
Sheet Electron Beam

The Sheet Electron Beam Vacuum Electron Device is an Attractive Choice for Generating High Power Millimeter/terahertz Wave Radiation. the Sheet Electron Beam Gun is a Key Component for the Sheet Beam Vacuum Electron Device. in this Paper, a Novel Sheet Electron Beam Gun was Proposed for a Terahertz Traveling-Wave Tube. the Theories of Sheet Beam Gun are Deduced Based on the Round Beam Gun Theories. the Track of 24.5kV, 1A, 0.4mm8mm Sheet Beam is Gained through 3D Particle-in-Cell Simulation and the Theories are Verified. the Investigation Results Show that, the Design Method of the Sheet Beam Gun is Easy and Reliable.

Theoretical and Experimental Study of a Compact Planar Slow-Wave Structure on a Dielectric Substrate for the W-Band Traveling-Wave Tube

2020 ◽  
Vol 65 (4) ◽  
pp. 660-665 ◽  
Author(s):  
R. A. Torgashov ◽  
N. M. Ryskin ◽  
A. G. Rozhnev ◽  
A. V. Starodubov ◽  
A. A. Serdobintsev ◽  
...  
Keyword(s):  
Experimental Study ◽  
Slow Wave ◽  
Traveling Wave ◽  
Wave Structure ◽  
Dielectric Substrate ◽  
Slow Wave Structure ◽  
Traveling Wave Tube ◽  
Wave Tube ◽  
W Band ◽  
Compact Planar
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