A Modified Double Staggered Grating Waveguide Slow Wave Structure for Sub-THz Traveling Wave Tubes

• Published in: IEEE transactions on electron devices Vol. 70; no. 6; pp. 1 - 7
• Main Authors: Zhao, Chen, Xu, Hang
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.06.2023; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Blades; Couplers; Cross-sections; Design optimization; Double staggered grating waveguide (DSGW); Electric fields; Electron beams; Gain; Gratings; Impedance; Maximum power; Millimeter waves; Power generation; slow wave structure (SWS); sub-THz; traveling wave tube (TWTs); Traveling wave tubes; Traveling waves; Waveguides

A modified double staggered grating waveguide (DSGW) slow wave structure (SWS) is proposed for millimeter-wave and sub-THz traveling wave tubes (TWTs). Gratings with a cross section outline of exponential curves are applied instead of the traditional rectangular cross section. The proposed SWS owns...