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.
In this paper, the design of slow wave structures for an X-band broadband TWT with suppression of backward-wave using the helix pitch step method is present. An optimized design of a high-power X-band broadband TWT with improved BWO suppression and forward-wave saturated output power is presented.
An analysis of harmonic reduction with negative dispersion for broadband helix Traveling-Wave tubes (TWTs) is put forward. The synchronization of the harmonic content is reduced by the decrease of the phase velocity of fundamental wave demonstrated by the field relative phase. A 6∼18GHz TWT is designed with a negative dispersion to improve the output power at low frequency by harmonic reduction and...
A continuum of closed-form solutions for voltage waveforms resulting from a complex load at the fundamental and reactive terminations at certain harmonic frequencies is analytically derived for Inverse Class-F power amplifiers based on a finite number of harmonics. The continuum of solutions shows constant RF output power and efficiency for a range of fundamental reactances and appropriately chosen...
This paper presents a novel formulation for the inverse class-F mode of operation, termed the “continuous inverse class-F mode”, resulting in an extended or continuous set of ‘allowed’ current waveforms. In comparison to the classical inverse class-F mode, this approach provides a much wider design space for the realization of broadband power amplifiers, where output performance can be maintained...
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.