Title :
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
fDate :
6/1/1990 12:00:00 AM
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;
Journal_Title :
Electron Devices, IEEE Transactions on
