Investigation of a K-band large coaxial relativistic backward wave oscillator

Journal Article · Thu Jan 14 23:00:00 EST 2016 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4937778· OSTI ID:22493850

Zeng, Fanzheng; Du, Guangxing; Wang, Honggang; Shi, Difu ^[1]

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1. College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha 410073 (China)

A K-band large coaxial relativistic backward wave oscillator has been investigated by the 2.5-D particle-in-cell code. This device can generate high-power microwave at a constant frequency with a constant efficiency by increasing the radius of the electron beam and the average radius of the slow-wave structure. The simulation results show that the power conversion efficiency can reach 38.8% at the frequency of 25.48 GHz with the output power of 1.65 GW, while the electron beam has the energy of 196 kV and carries the current of 21.6 kA guided by the magnetic field of 2.5 T.

• OSTI ID: 22493850
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 1 Vol. 23; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COMPUTERIZED SIMULATION
ELECTRIC CURRENTS
ELECTRON BEAMS
ENERGY CONVERSION
GHZ RANGE
MAGNETIC FIELDS
MICROWAVE RADIATION
OSCILLATORS
POWER GENERATION
RELATIVISTIC RANGE