A high efficient relativistic backward wave oscillator with coaxial nonuniform slow-wave structure and depth-tunable extractor
- College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha 410073 (China)
A high efficient relativistic backward wave oscillator with coaxial nonuniform slow-wave structures (SWSs) and depth-tunable extractor is presented. The physical mechanism to increase the power efficiency is investigated theoretically and experimentally. It is shown that the nonuniform SWSs, the guiding magnetic field distribution, and the coaxial extractor depth play key roles in the enhancement of the beam-wave power conversion efficiency. The experimental results show that a 1.609 GHz, 2.3 GW microwave can be generated when the diode voltage is 890 kV and the beam current is 7.7 kA. The corresponding power efficiency reaches 33.6%.
- OSTI ID:
- 22113466
- Journal Information:
- Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 2 Vol. 20; ISSN PHPAEN; ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
Similar Records
Dispersive characteristics and longitudinal resonance properties in a relativistic backward wave oscillator with the coaxial arbitrary-profile slow-wave structure
Experimental study of a compact P-band coaxial relativistic backward wave oscillator with three periods slow wave structure
Investigation of a K-band large coaxial relativistic backward wave oscillator
Journal Article
·
Sat Nov 14 23:00:00 EST 2009
· Physics of Plasmas
·
OSTI ID:21274278
Experimental study of a compact P-band coaxial relativistic backward wave oscillator with three periods slow wave structure
Journal Article
·
Wed Aug 15 00:00:00 EDT 2012
· Physics of Plasmas
·
OSTI ID:22086075
Investigation of a K-band large coaxial relativistic backward wave oscillator
Journal Article
·
Thu Jan 14 23:00:00 EST 2016
· Physics of Plasmas
·
OSTI ID:22493850