Title :
A Ka-Band Second Harmonic Gyroklystron Amplifier
Author :
Xu, Shou-Xi ; Liu, Pu-Kun ; Zhang, Shichang ; Su, Yinong ; Geng, Zhi-Hui ; Gu, Wei ; Xue, Qianzhong ; Han, Bing
Author_Institution :
Key Lab. of High-Power Microwave Sources & Technol., Inst. of Electron., Beijing, China
Abstract :
The design and experiment of a ka-band second harmonic gyroklytron amplifier are reported. The three-cavity 35-GHz second harmonic gyroklystron operates in the TE021 circular electric mode. Based on the numerical simulation, a three-cavity, second harmonic gyroklystron amplifier prototype has been fabricated. Experiments show a peak output power of 212 kW at 35 GHz with a 3-dB bandwidth of 155 MHz (0.44%) when utilizing a 58 kV, 23 A, v⊥/vP = 1.45 electron beam from a magnetron injection gun. The efficiency is approximately 16%, and the gain is about 24 dB.
Keywords :
electron beams; electron guns; gyrotrons; klystrons; magnetrons; microwave amplifiers; numerical analysis; TE021 circular electric mode; bandwidth 155 MHz; current 23 A; electron beam; frequency 35 GHz; ka-band second harmonic gyroklystron amplifier; magnetron injection gun; numerical simulation; power 212 kW; three-cavity second harmonic gyroklystron amplifier; voltage 58 kV; Cathodes; Cavity resonators; Electron beams; Harmonic analysis; Klystrons; Power amplifiers; Power generation; Gyroklystron amplifier; ka-band; second harmonic;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2012.2199522
