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Frequency switching in a relativistic magnetron with diffraction output
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10.1063/1.3614037
/content/aip/journal/jap/110/3/10.1063/1.3614037
http://aip.metastore.ingenta.com/content/aip/journal/jap/110/3/10.1063/1.3614037
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Optimal design6 of the high efficiency A6 MDO driven by a transparent cathode and one suggestion of implementing the injection of an input signal using a coaxial cable.

Image of FIG. 2.
FIG. 2.

(Color online) Dependences6 of radiation power P and electronic efficiency on the axial magnetic field H for the mode and the mode when the applied voltage is 400 kV.

Image of FIG. 3.
FIG. 3.

(Color online) Electron spokes synchronous with the fundamental harmonic of the mode (left) and structure of the output radiation when the axial magnetic field (right).

Image of FIG. 4.
FIG. 4.

(Color online) Electron spokes synchronous with the (-1st) spatial harmonic of the mode (left) and structure of the output radiation when the axial magnetic field (right).

Image of FIG. 5.
FIG. 5.

(Color online) (a) Poincare map showing two stable states F1 and F2 separated by the unstable saddle point F0. The stable states can be represented by stable limit cycles corresponding to periodic oscillations or points inside the circles (stable foci or stable nodes) corresponding to final states of damped oscillations. (b) The simplest example of a dynamical system: a ball on top of a hill between two valleys.

Image of FIG. 6.
FIG. 6.

(Color online) Left: power (red line, or line with oscillations). Right: frequency of the mode radiation when 4.6 kOe and 0. The green line, or smooth line corresponds to the rise time when a 400 kW input signal is used.

Image of FIG. 7.
FIG. 7.

(Color online) Left: Input signal power. Middle: Radiation power. Right: Radiation frequency of the switched mode.

Image of FIG. 8.
FIG. 8.

(Color online) Left: input signal power to generate the mode. Right: Input signal power to switch the mode to the mode.

Image of FIG. 9.
FIG. 9.

(Color online) Radiation power and frequency for mode generation switched by the input power 300 kW and for switching the mode to the mode.

Image of FIG. 10.
FIG. 10.

(Color online) The output electric field corresponding to the first microwave pulse. The smooth black line corresponds to attenuation of the field after the first voltage pulse is turned off.

Image of FIG. 11.
FIG. 11.

(Color online) (a) Driver position: (b) A series of microwave pulses with different generated modes (the first pulse with mode generation, the second pulse with mode generation).

Image of FIG. 12.
FIG. 12.

(Color online) (a) Schematic of 6 ns microwave pulsewidths. (b) Waveforms of the anode current pulses.

Image of FIG. 13.
FIG. 13.

(Color online) Waveforms of the leakage current pulses.

Image of FIG. 14.
FIG. 14.

(Color online) Waveforms of the output microwave pulses.

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/content/aip/journal/jap/110/3/10.1063/1.3614037
2011-08-05
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Frequency switching in a relativistic magnetron with diffraction output
http://aip.metastore.ingenta.com/content/aip/journal/jap/110/3/10.1063/1.3614037
10.1063/1.3614037
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