Title :
Subgigawatt Ka-band BWO with a Permanent-Magnet-Based e-Beam Focusing System: Experiments, Simulations, and Prospects
Author :
Yalandin, M.I. ; Shpak, V.G. ; Shunailov, S.A. ; Sharypov, K.A. ; Ulmasculov, M.R. ; Yermakov, A.E. ; Zhakov, S.V. ; Rostov, V.V. ; Mesyats, G.A.
Author_Institution :
Inst. of Electrophys. UB RAS, Ekaterinburg
Abstract :
A study of a 38-GHz nonstationary relativistic BWO operating with an impulse solenoid has been performed. The production of subnanosecond pulsed microwaves with a peak power of ~500 MW with this BWO was carried out experimentally and using a PIC simulation. It has been shown that the topology and magnitude of the magnetic field best suited to focus the electron beam can be provided by a magnetic focusing system assembled of high-coercivity permanent magnets. This offers promise for this type of BWO to produce microwaves of more than 100 MW peak power at a pulse repetition rate as high as some tens or hundreds of hertz and even more.
Keywords :
backward wave oscillators; electron beams; microwave oscillators; permanent magnets; solenoids; PIC simulation; backward-wave oscillators; electron beam; frequency 38 GHz; high-coercivity permanent magnets; impulse solenoid; magnetic field; magnetic focusing system; permanent-magnet-based e-beam focusing system; power 100 MW; power 500 MW; subgigawatt Ka-band BWO; subnanosecond pulsed microwaves; Cyclotrons; Electron accelerators; Electron beams; Frequency; Magnetic fields; Microwave oscillators; Power conversion; Pulse modulation; Solenoids; Superconducting magnets;
Conference_Titel :
IEEE International Power Modulators and High Voltage Conference, Proceedings of the 2008
Conference_Location :
Las Vegas, NE
Print_ISBN :
978-1-4244-1534-2
Electronic_ISBN :
978-1-4244-1535-9
DOI :
10.1109/IPMC.2008.4743598
