NDLI: Technical characteristics of a novel helical-groove traveling-wave tube structure

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Technical characteristics of a novel helical-groove traveling-wave tube structure

Content Provider	NASA Technical Reports Server (NTRS)
Author	Freeman, Jon Vaden, Karl R. Wallett, Thomas M. Qureshi, A. Haq
Copyright Year	1998
Description	Experimental measurements of the dispersion characteristics of a C-band helix structure were carried out and compared to the dispersion characteristics found from a helix model using the three-dimensional electromagnetic computer code MAFIA. A conceptually novel design comprising a helical thread of the same pitch and inner diameter in a cylindrical waveguide also were calculated using the MAFIA code. The helical-groove structure exhibits a smaller bandwidth but at a much higher frequency range than the traditional helical structure for similar physical dimensions. It is physically more robust in construction. The interaction impedance also compares favorably with those of the conventional structure.
File Size	349275
Page Count	8
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19980197324
Archival Resource Key	ark:/13960/t9964gn3d
Language	English
Publisher Date	1998-05-01
Access Restriction	Open
Subject Keyword	Electronics And Electrical Engineering Traveling Wave Tubes Bandwidth Cylindrical Bodies Waveguides Grooves Impedance Frequency Ranges Computer Programs Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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