Title :
Gigawatt-Class Radiation of
Mode From a Ku-Band Overmoded Cerenkov-Type High-Power Microwave Generator
Author :
Hua Zhang ; Ting Shu ; Jinchuan Ju ; Dapeng Wu
Author_Institution :
Coll. of Optoelectric Sci. & Eng., Nat. Univ. of Defense Technol., Changsha, China
Abstract :
We present the numerical and experimental results of a Ku-band overmoded Cerenkov-type high-power microwave oscillator. A pulsed power accelerator working at a voltage of 740 kV was employed to generate relativistic electron beams with a peak current of 9.9 kA, which were guided through the overmoded slow wave structures by an axial magnetic field of 0.8 T. The investigated generator produced microwave pulse with a duration of 24 ns, at a central frequency of 13.76 GHz, and with power as high as 1.1 GW, corresponding to power conversion efficiency of about 15%. The operating mode was well controlled in quasi-single mode of TM01 .
Keywords :
microwave oscillators; pulse generators; pulsed power technology; slow wave structures; Ku-band overmoded Cerenkov-type high-power microwave oscillator; Ku-band overmoded cerenkov-type high-power microwave generator; TM01 mode; axial magnetic field; frequency 13.76 GHz; gigawatt-class radiation; magnetic flux density 0.8 T; microwave pulse; overmoded slow wave structures; pulsed power accelerator; quasisingle mode; relativistic electron beam generation; time 24 ns; voltage 740 kV; Electron beams; Generators; Microwave communication; Microwave devices; Microwave measurement; Microwave oscillators; Gigawatt-class radiation; Ku-band; high-power microwave (HPM); overmoded Cerenkov-type oscillator; single ${rm TM}_{01}$ mode; single TM⁰¹ mode;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2014.2317750