2018
DOI: 10.1017/s1759078717001349
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Comparative study of envelope models for hybrid time- and frequency-domain simulation of traveling-wave tubes

Abstract: A selection of hybrid frequency- and time-domain approaches is evaluated with respect to their suitability for predicting the multi-tone behavior of a reference Ku-band helix traveling-wave tube. For this, a frequency-domain code is extended by a selection of frequency-dependent and frequency-independent envelope models and compared to a number of simulated and measured responses to two-tone signal excitation with varying frequency spacing. The selected envelope methods are investigated both in the hybrid appr… Show more

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