Title :
Long-pulse, high-power, phase-locked magnetron studies
Author :
Treado, Todd A. ; Brown, Paul D. ; Bolton, Richard A. ; Hansen, Todd
Author_Institution :
Varian Associates, Beverly, MA, USA
Abstract :
The authors have developed 60 MW, 60% efficient, 35 Joule/pulse secondary emission magnetron at S-band. They report on experimental results from this moderate-voltage (120 kV), repetitively pulsed (10 Hz), injection-locked (14-15 dB gain) magnetron. Limits imposed by high-voltage breakdown, RF breakdown, and thermal loading are discussed. By increasing the voltage, the drive power, and the magnetron length and by using a tungsten alloy anode, 120 MW should be achievable for approximately 4- mu s pulses at 130 kV with the pulse length limited by transient heating of the anode.<>
Keywords :
electric breakdown; magnetrons; 120 MW; 120 kV; 130 kV; 14 to 15 dB; 4 mus; 60 MW; 60 percent; RF breakdown; S-band; W alloy anode; high power type; high-voltage breakdown; long pulse operation; microwave tubes; phase-locked magnetron; thermal loading; transient heating; Anodes; Dielectric breakdown; Electromagnetic heating; Gain; Low voltage; Microwave devices; Phased arrays; Protection; Pulse amplifiers; Transmitters;
Conference_Titel :
Microwave Symposium Digest, 1992., IEEE MTT-S International
Conference_Location :
Albuquerque, NM, USA
Print_ISBN :
0-7803-0611-2
DOI :
10.1109/MWSYM.1992.187952
