Wideband tunable klystron amplifier for satellite earth stations

Author

Lien, Erling L. ; Mizuhara, Albert

Author_Institution

Varian Assoc., Palo Alto, CA, USA

fYear

1974

fDate

9-11 Dec. 1974

Firstpage

363

Lastpage

366

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electron Devices Meeting (IEDM), 1974 International

Conference_Location

Washington, DC

ISSN

0163-1918

Type

conf

DOI

10.1109/IEDM.1974.6219766

Filename

6219766