Computational investigation of experimental interaction impedance obtained by perturbation for helical traveling-wave tube structures

• Published in: IEEE transactions on electron devices Vol. 45; no. 9; pp. 2063 - 2071
• Main Authors: Kory, C.L., Dayton, J.A.
• Format: Journal Article
• Language: English
• Published: Legacy CDMS IEEE 01.09.1998; Institute of Electronic and Electrical Engineers
• Subjects: Circuit simulation; Computational modeling; Dielectric measurements; Electronics And Electrical Engineering; Frequency measurement; Impedance measurement; NASA; Performance evaluation; Phase measurement; Power system harmonics; Radio frequency

Conventional methods used to measure the cold-test interaction impedance of helical slow-wave structures involve perturbing a helical circuit with a cylindrical dielectric rod placed on the central axis of the circuit. It has been shown that the difference in resonant frequency or axial phase shift...