A Simple Analysis of Helical Slow-wave Structure Loaded by Dielectric Embedded Metal Segments for Wideband Traveling- Wave Tubes
نویسندگان
چکیده
A simple field analysis was developed for helical slowwave structure symmetrically supported by rectangular shaped discrete dielectric support rods partially embedded in the metal segments projecting radially inward from a metal envelope for wideband traveling-wave tubes. The tape helix model was used for the prediction of the dispersion relation and the interaction impedance characteristics. The closed form simplified expressions are obtained by combining the tape model dispersion relation for free-space helix and the dielectric loading factor obtained for the loaded helix in the sheath model. The dispersion characteristics and the interaction impedance characteristics obtained by the present analysis were compared with other more Corresponding author: P. K. Jain ([email protected]).
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تاریخ انتشار 2010