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.

fYear

0

fDate

0-0 0

Firstpage

355

Lastpage

356

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/IVELEC.2006.1666329

Filename

1666329