Gigawatt-class radiation of TM01 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 Optoelectron. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha, China

fYear

2014

fDate

25-29 May 2014

Firstpage

1

Lastpage

4

Abstract

We present the experimental results of a Ku-band overmoded Cerenkov-type high power microwave (HPM) oscillator operated at low guiding magnetic field. A pulsed power accelerator working at a voltage of 740 kV was employed to generate relativistic electron beams with peak current of 9.9 kA, which were guided through the overmoded slow wave structures by an axial magnetic field of around 0.8 T. The investigated Cerenkov-type HPM generator was found to produce microwave pulse with a duration of 24 ns, at a central frequency of 13.76 GHz, and with a power as high as 1.1 GW, corresponding to a power conversion efficiency of about 15%. The operating mode was controlled in quasi-single mode of TM₀₁.

Keywords

Cherenkov radiation; microwave generation; microwave oscillators; slow wave structures; Cerenkov type high power microwave generator; Cerenkov-type high power microwave oscillator; Ku-band overmoded microwave generator; TM₀₁ mode; axial magnetic field; current 9.9 kA; frequency 13.76 GHz; gigawatt class radiation; low guiding magnetic field; overmoded slow wave structures; power 1.1 GW; pulsed power accelerator; voltage 740 kV; Microwave FET integrated circuits; Microwave communication; Microwave devices; Microwave integrated circuits; Microwave measurement; Microwave oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Sciences (ICOPS) held with 2014 IEEE International Conference on High-Power Particle Beams (BEAMS), 2014 IEEE 41st International Conference on

Conference_Location

Washington, DC

Print_ISBN

978-1-4799-2711-1

Type

conf

DOI

10.1109/PLASMA.2014.7012768

Filename

7012768