Title :
Reduction of Noise in Strapped Magnetron by Electric Priming using Anode Shape Modification
Author :
Kim, J.L. ; Won, J.H. ; Park, G.S. ; Ha, H.J. ; Shon, J.C.
Author_Institution :
Sch. of Phys., Seoul Nat. Univ.
Abstract :
Noise reduction in a 2.45 GHz strapped magnetron oscillator is experimentally demonstrated by electric priming using anode shape modification. The sideband noise are reduced by about 15 dB at the nominal operating current and 28 dB at the start-oscillation current due to electron prebunching into the pi-mode resulted from the modulation of the drift velocity of the electron using the azimuthally periodic electric field. In this experiment, a 4.3kV and 330mA half-wave rectified input power is employed
Keywords :
interference suppression; magnetrons; microwave oscillators; noise; 2.45 GHz; 330 mA; 4.3 kV; anode shape modification; electric priming; magnetron oscillator; noise reduction; prebunching; sideband noise; strapped magnetron; Anodes; Electric variables measurement; Electromagnetic heating; Electron mobility; Frequency measurement; Microwave ovens; Noise reduction; Noise shaping; Power measurement; Shape measurement; electric priming; noise; prebunching; strapped magnetron;
Conference_Titel :
Vacuum Electronics Conference, 2006 held Jointly with 2006 IEEE International Vacuum Electron Sources., IEEE International
Conference_Location :
Monterey, CA
Print_ISBN :
1-4244-0108-9
DOI :
10.1109/IVELEC.2006.1666329
