The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Increasing demands of system integrators and designers, on efficiency and increased capability, have lead to a requirement for higher RF power levels and greater operational bandwidth. This paper describes the design, theoretical modeling and experimental data collated through the development of two multi-octave mini travelling wave tubes (TWTs) during the last 12 months.
Broadband helix traveling-wave tubes (TWTs) with a pitch profile incorporating a section of reduced phase velocity followed by a positive taper show significant improvement in output power. A simple technique is described here to optimize such slow-wave structures taking an existing uniform pitch mini-TWT as a baseline tube. A comparison has been made among the actual performances of the TWTs with...
Positive phase velocity tapering has been implemented to improve the broadband performance of helix traveling wave tubes (TWTs). The slow wave structures of a mini-TWT and a midi-TWT have been optimized using this technique. A comparison between the actual performances of the tubes with uniform and positive tapered pitch shows a significant improvement in efficiency and power at the higher end of...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.