Title :
Production and operation of a high-efficiency DBS-band klystron utilizing a multistage depressed collector
Author :
Habermann, T. ; Batra, R. ; Begum, R. ; McCune, E.W. ; Wright, E.L.
Author_Institution :
Microwave Power Products, Commun. & Power Ind., Palo Alto, CA, USA
Abstract :
The satellite communications market has previously been served by klystrons with grounded collector. Now, CPI has developed a new generation of air-cooled, permanent-magnet (PM) focused, high-efficiency klystrons utilizing a multistage depressed collector (MSDC). We describe the development and production of the VKU-8891M series, pioneering MSDC technology in the direct broadcasting satellite (DBS) market. With a saturated efficiency of 40 percent this klystron far surpasses the performance of a conventional klystron. As a result, this technology saves more than 50 percent of the power required by existing products in this market in average field-operating conditions.
Keywords :
direct broadcasting by satellite; electrodes; klystrons; microwave tubes; 17.3 to 18.4 GHz; 2.4 kW; 40 percent; 50 dB; 9.5 kV; PM focused klystrons; VKU-8891M series; air-cooled klystrons; broadcasting satellite market; high-efficiency DBS-band klystron; multistage depressed collector; permanent-magnet focused klystrons; satellite communications; Acceleration; Broadcast technology; Costs; Electron beams; Kinetic energy; Klystrons; Power supplies; Production; Satellite broadcasting; Satellite communication;
Conference_Titel :
Microwave Symposium Digest, 2002 IEEE MTT-S International
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-7803-7239-5
DOI :
10.1109/MWSYM.2002.1011701
