Title :
Studies of a novel low-impedance transit time radiation oscillator
Author :
Cao Yi-bing ; Zhang Jian-de ; Du Guang-xing ; Tao, Xun
Author_Institution :
Coll. of Optoelectric Sci. & Eng., Nat. Univ. of Defense Technol., Changsha, China
Abstract :
A novel foilless L-band low-impedance transit-time radiation oscillator was designed. Such an oscillator with coaxial structure has the advantages of low extra magnetic field, quick saturation time, and expected repetitive operation. As indicated by PIC simulations, the average power of output microwave is over 5.0GW at the main frequency of 1.583GHz with the input diode voltage of 600kV, the input diode current of 36.0kA, and the extra magnetic field of 0.45 tesla. Based on the above simulation result, the beam-wave conversion efficiency is about 22.0%, and much better than that of a high-impedance transit-time radiation oscillator with the same input voltage.
Keywords :
microwave oscillators; L-band low-impedance transit-time radiation oscillator; beam-wave conversion efficiency; coaxial structure; current 36.0 kA; frequency 1.583 GHz; input diode current; input diode voltage; low extra magnetic field; output microwave; quick saturation time; repetitive operation; voltage 600 kV; L-band; Microwave devices; Microwave oscillators; Nanoscale devices; Radio frequency;
Conference_Titel :
High Power Particle Beams (BEAMS), 2008 17th International Conference on
Conference_Location :
Xian
