The studies of HPM frequency-lock technique of VCO

Author

Zhang, Y.Z. ; Liu, J.L. ; Li, C.L. ; Chen, G.Q.

Author_Institution

Dept. of Appl. Phys., Nat. Univ. of Defense Technol., Hunan, China

Volume

1

fYear

1997

fDate

June 29 1997-July 2 1997

Firstpage

786

Abstract

A metal resonant cavity was used successfully to lock the high power microwave (HPM) frequency from a virtual cathode oscillation (VCO). The effects of the electron beam space charge and the energy extract slots on the cavity eigenfrequenices were calculated. On the bases of theoretical analyses and analogue tests, a length-adjustable small D/L ratio cavity and an annular intense electron beam VCO system were designed and pretty good results of VCO HPM frequency locking was obtained. The main frequency was stabilized at 4.12 GHz with 3 db bandwidth /spl les/1%, even the electron beam current changed by 12.5%.

Keywords

cathodes; cavity resonators; eigenvalues and eigenfunctions; microwave oscillators; microwaves; oscillations; space charge; 4.12 GHz; annular intense electron beam VCO system; cavity eigenfrequencies; electron beam current; electron beam space charge; energy extract slots; frequency locking; frequency stabilization; high power microwave; length-adjustable small D/L ratio cavity; metal resonant cavity; virtual cathode oscillation; Anodes; Bandwidth; Cathodes; Diodes; Electron beams; Electron emission; Frequency; Particle beams; Resonance; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Pulsed Power Conference, 1997. Digest of Technical Papers. 1997 11th IEEE International

Conference_Location

Baltimore, MA, USA

Print_ISBN

0-7803-4213-5

Type

conf

DOI

10.1109/PPC.1997.679460

Filename

679460