The effects of dielectric and metal loading on the dispersion characteristics for contrawound helix circuits used in high-power traveling-wave tubes

Author

Cain, W.N. ; Grow, Richard W.

Author_Institution

Dept. of Electr. Eng., Utah Univ., Salt Lake City, UT, USA

Volume

37

Issue

6

fYear

1990

fDate

6/1/1990 12:00:00 AM

Firstpage

1566

Lastpage

1578

Abstract

The theory developed by M. Chodorow and E.L. Chu (Stanford Univ. Tech. Rep. TR249, 1954) is expanded to include the problem of a contrawound helix interposed between two dielectric regions, symmetrically oriented inside a conducting cylinder. The single helix oriented in an identical fashion is simultaneously analyzed. Numerical results are presented in the form of dispersion diagrams over a wide range of parameters. Interesting behavior found within these diagrams is discussed and, whenever possible, comparable to experimental results

Keywords

dielectric-loaded waveguides; dispersion (wave); travelling-wave-tubes; waveguide theory; TWT theory; TWTs; conducting cylinder; contrawound helix circuits; dielectric loading; dispersion characteristics; dispersion diagrams; experimental results; high-power traveling-wave tubes; metal loading; numerical results; single helix; slow wave structures; two dielectric regions; Circuits; Dielectrics; Dispersion; Engine cylinders; Magnetic fields; Microwave devices; Propagation constant; Region 1; Region 2; Tellurium;

fLanguage

English

Journal_Title

Electron Devices, IEEE Transactions on

Publisher

ieee

ISSN

0018-9383

Type

jour

DOI

10.1109/16.106259

Filename

106259