Title :
High power S-band magnetron
Author :
Robinson, Julian ; Doherty, Matt ; Davenport, Bob ; Lander, Mark ; Treado, Todd
Author_Institution :
Beverly Microwave Div., CPI, Beverly, MA, USA
Abstract :
Within the last year, CPI has delivered a modified VMS 1873 magnetron. The device is based on a 1992 design for the US Army. The magnetron puts out 30 MW of peak power at S-band with an overall DC to RF conversion efficiency of 45%. With its larger electromagnet, the original VMS-1873 magnetron operated at up to 60% efficiency. Part of the program was a life test of 4 x 107 pulses of 1.2 μs width. The life test was successful. During the life test, output power increased slightly over time as the cathode surface emission improved.
Keywords :
magnetrons; 1.2 mus; 30 MW; 45 percent; 60 percent; DC-to-RF conversion efficiency; VMS 1873; cathode surface emission; electromagnet; high-power S-band magnetron; life testing; output power; Anodes; Blades; Circuit testing; Coupling circuits; Electromagnets; Life testing; Magnetic separation; Microwave devices; Radio frequency; Voice mail;
Conference_Titel :
Vacuum Electronics Conference, 2002. IVEC 2002. Third IEEE International
Print_ISBN :
0-7803-7256-5
DOI :
10.1109/IVELEC.2002.999241
