Computer-aided design of helix-type traveling wave tubes

This paper is a progress report on the continuing effort toward more efficient and more precise design and analysis of helix-type TWTs through the use of time-sharing computers. The use of computer programs for the design of helix-type TWTs is not new. The TWT theoretical models on which such computer programs are based were developed years ago and are adequately described in the published literature. What is relatively new to the design engineer is his access to large-scale digital computers made available by many time-sharing computer services.