Title :
Wideband tunable klystron amplifier for satellite earth stations
Author :
Lien, Erling L. ; Mizuhara, Albert
Author_Institution :
Varian Assoc., Palo Alto, CA, USA
Abstract :
The Varian VKX-7799B broadband klystron amplifier described in this paper was developed for use in satellite earth terminals. The 8 kW amplifier features an instantaneous -1 dB channel bandwidth in excess of 180 MHz and is manually tunable across the entire communications band from 7.9 to 8.4 GHz. The unique feature of this tube is a tunable-filter-output resonator which is used to obtain the relatively-wide electronic bandwidth. The new tunable output circuit consists of two coupled cavities. The tuning of the output circuit over the entire operating range is accomplished by means of inductive tuners in the output and filter cavities. No additional adjustment of circuit parameters is required during the tuning. The design concept for the tunable-filter-output resonator and the overall performance of the VKX-7799B are described.
Keywords :
cavity resonator filters; klystrons; microwave amplifiers; microwave filters; satellite ground stations; Varian VKX-7799B broadband tunable klystron amplifier; circuit parameters; coupled cavities; filter cavities; frequency 7.9 GHz to 8.4 GHz; inductive tuners; output cavities; power 8 kW; relatively-wide electronic bandwidth; satellite earth stations; tunable output circuit; tunable-filter-output resonator; Broadband communication; Computational modeling; Klystrons; Magnetic separation; Tuners; Wideband;
Conference_Titel :
Electron Devices Meeting (IEDM), 1974 International
Conference_Location :
Washington, DC
DOI :
10.1109/IEDM.1974.6219766
