2009
DOI: 10.1109/tps.2009.2020726
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A New Reflector Designed for Efficiency Enhancement of CRBWO

Abstract: A new reflector consisting of the inner and outer conductors is introduced into the coaxial relativistic backward wave oscillator for the first time through optimizing the distribution of the electric field and distance between the reflector and the slow wave structure. The improved reflector can excite the superposition of the axial electric fields to benefit the electron premodulation. The improved reflector is investigated by the particle-in-cell numerical simulation. A result of 43% power efficiency, 1.0-G… Show more

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Cited by 18 publications
(6 citation statements)
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“…2, which can promote conversion efficiencies up to 43%, has been developed. 12 The electric field distribution is illustrated in Fig. 13, and indicates that the stronger axial electric field can be excited on both the beam transmission lines in the coaxial reflector than in the conventional reflector.…”
Section: Coaxial Reflectormentioning
confidence: 98%
See 1 more Smart Citation
“…2, which can promote conversion efficiencies up to 43%, has been developed. 12 The electric field distribution is illustrated in Fig. 13, and indicates that the stronger axial electric field can be excited on both the beam transmission lines in the coaxial reflector than in the conventional reflector.…”
Section: Coaxial Reflectormentioning
confidence: 98%
“…10,11 In Ref. 12, simulation results for CRBWO present high efficiencies of up to 43% in the X-band, while the output energy is approximately 1.0 GW. The highest experimental efficiency for CRBWO published to date is 36%, corresponding to an output power of 1.01 GW in the X-band.…”
Section: Introductionmentioning
confidence: 99%
“…It should be noted that this reflector has been described in Ref. 6. With the calculation models of premodulation cavity and reflector shown in Fig.…”
Section: Structure Modelmentioning
confidence: 99%
“…[1][2][3][4][5][6][7][8][9][10][11] To further increase the beam-wave interaction efficiency and output power, in our earlier work we introduced a klystron-like RBWO combining transition radiation with Cerenkov radiation. [12][13][14] In that device, a resonant reflector was used before the slow wave structure (SWS) to reflect backward wave and premodulate the electron beam; a modulation cavity separated the SWS to decrease the energy spread of the modulated beam electrons; and an extraction cavity was added to recover energy from the beam.…”
Section: Introductionmentioning
confidence: 99%
“…The application of the reflector has already been developed for CRBWO and the efficiency has risen up to 43%. 15 However, few researches have been focused on the starting current of CRBWO, an important problem for the HPM device. 16 The starting current is the minimum current above which RCBWO will spontaneously break into oscillation.…”
Section: Introductionmentioning
confidence: 99%