Title :
Special complex open-cavity and low-magnetic-field high-power gyrotron
Author :
Guo, Hezhong ; Wu, D.S. ; Liu, G. ; Miao, Y.H. ; Qian, S.Z. ; Qin, W.Z.
Author_Institution :
Inst. of Electron. Academia Sinica, China
fDate :
6/1/1990 12:00:00 AM
Abstract :
A theory is proposed for the special complex cavity; it is in the form of a single resonant circuit having a TE0n&lrarr2;TE0,n+p mode converter and it features excellent mode selectivity, high power capability, and an asymmetric triangle profile of the RF field that is favourable to efficient operation for a 35-GHz second-harmonic gyromonotron employing this complex cavity with TE03 mode output are numerically illustrated and experimentally demonstrated. Power as high as 200 kW and efficiency as high as 30% have been obtained. These experimental results are record values for a gyrotron operating at the second-harmonic millimeter wavelength. Implications of the single-resonant complex cavity for the fundamental harmonic and third-harmonic high-average-power gyrotron design are discussed
Keywords :
gyrotrons; microwave oscillators; 200 kW; 30 percent; 35 GHz; RF field; TE03 mode; asymmetric triangle profile; complex open-cavity; millimeter wavelength; second-harmonic gyromonotron; single loop; single resonant circuit; Gyrotrons; Plasma confinement; Plasma waves; Power generation; RLC circuits; Radio frequency; Stability; Tellurium; Waveguide transitions; Whispering gallery modes;
Journal_Title :
Plasma Science, IEEE Transactions on
