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Title: Experimental demonstration of a compact high efficient relativistic magnetron with directly axial radiation

Abstract

A compact relativistic magnetron with axial microwave radiation is experimentally investigated. Under the modified magnetic field distribution, only connecting a special horn antenna in the axial direction, the relativistic magnetron can stably radiate high power and high efficiency microwaves. The total length of the device is {approx}0.3 m, and the volume is {approx}0.014m{sup 3}. In such working condition that the applied voltage is 539 kV and the magnetic field is {approx}0.38 T, the output microwave power is {approx}1.24 GW. Correspondingly, the total efficiency is about 34.1%. The radiating frequency is 2.35GHz, which is in agreement with the {pi} mode frequency of the theoretical expectation.

Authors:
; ; ; ; ; ;  [1]
  1. College of Optoelectric Science and Engineering, National University of Defense Technology, Changsha, Hunan 410073 (China)
Publication Date:
OSTI Identifier:
22043598
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 19; Journal Issue: 1; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; DISTRIBUTION; EFFICIENCY; MAGNETIC FIELDS; MAGNETRONS; MICROWAVE RADIATION; PLASMA DIAGNOSTICS; PLASMA INSTABILITY; RELATIVISTIC PLASMA; RELATIVISTIC RANGE

Citation Formats

Wei, Li, Yonggui, Liu, Ting, Shu, Hanwu, Yang, Yuwei, Fan, Chengwei, Yuan, and Jun, Zhang. Experimental demonstration of a compact high efficient relativistic magnetron with directly axial radiation. United States: N. p., 2012. Web. doi:10.1063/1.3677882.
Wei, Li, Yonggui, Liu, Ting, Shu, Hanwu, Yang, Yuwei, Fan, Chengwei, Yuan, & Jun, Zhang. Experimental demonstration of a compact high efficient relativistic magnetron with directly axial radiation. United States. https://doi.org/10.1063/1.3677882
Wei, Li, Yonggui, Liu, Ting, Shu, Hanwu, Yang, Yuwei, Fan, Chengwei, Yuan, and Jun, Zhang. 2012. "Experimental demonstration of a compact high efficient relativistic magnetron with directly axial radiation". United States. https://doi.org/10.1063/1.3677882.
@article{osti_22043598,
title = {Experimental demonstration of a compact high efficient relativistic magnetron with directly axial radiation},
author = {Wei, Li and Yonggui, Liu and Ting, Shu and Hanwu, Yang and Yuwei, Fan and Chengwei, Yuan and Jun, Zhang},
abstractNote = {A compact relativistic magnetron with axial microwave radiation is experimentally investigated. Under the modified magnetic field distribution, only connecting a special horn antenna in the axial direction, the relativistic magnetron can stably radiate high power and high efficiency microwaves. The total length of the device is {approx}0.3 m, and the volume is {approx}0.014m{sup 3}. In such working condition that the applied voltage is 539 kV and the magnetic field is {approx}0.38 T, the output microwave power is {approx}1.24 GW. Correspondingly, the total efficiency is about 34.1%. The radiating frequency is 2.35GHz, which is in agreement with the {pi} mode frequency of the theoretical expectation.},
doi = {10.1063/1.3677882},
url = {https://www.osti.gov/biblio/22043598}, journal = {Physics of Plasmas},
issn = {1070-664X},
number = 1,
volume = 19,
place = {United States},
year = {Sun Jan 15 00:00:00 EST 2012},
month = {Sun Jan 15 00:00:00 EST 2012}
}