Powerful Microwave Devices

beem.gif (23465 bytes)

Gyrotrons and Gyroklystrons

In the modeling and optimization laboratory it is designed theory and created complex of programs for the calculation and optimization Gyro - devices different type: Gyrotrons, Gyroklystrons, Gyro-TWT, Gyro-Twistrons, Gyrotons.

The code, Gyro-K, comprises of itself program of optimization Opti-K, program of deciding the common differential equation systems and program of modeling of processes in Gyro-devices.

Modeling program allows:

	to calculate any number of cascades in device,
	takes influence of forces of space charge into account,
	takes into account a non-uniform directing magnitostatic field,
	allows to calculate the cascades with any type and index of modes field,
	takes into account arbitrary irregular elecrodynamic system, including irregular slowing systems,
	takes into account electrons velocity spread.

Calculations show that theoretically at optimization of the profile waveguide and sharing an magnitoctatic field the efficiancy allow reach 40-60% in MM band.
Main results on gyro-devices are published in work:

Kurayev A.A., Kolosov S.V., Stekolnikov A.F. etc., TWT-gyrotrons: Non-linear theory, optimization and analysis.// Int. J. Electronics, 1988, vol.65, N3, pp.437-462
Kurayev A.A., Kolosov S.V., Slepyan A.Y. and Zakalukin A.B., Gyrotrons: relativistic case, E and H modes, output converter design.// Int. J. Electronics, 1992, vol.72, N5-6, pp.1103-1117
Kolosov S.V. and Kurayev A.A., Gyroklystron with a cavity operating at the second harmonic of working frequency in buncher.// IEEE Electron device letters, 1997, vol.18, N6, pp.254-257
Kolosov S.V., Kurayev A.A., Non-linear theory of gyroresonance devices with irregylar electrodynamic system.// Electromagnetic waves and electron systems, Moskaw, 1998, vol.3, N1, pp.35-44
Kolosov S.V., Kurayev A.A., Waves in periodic longitudal-irregular waveguides // Electromagnetic waves and electron systems, Moskaw, 1999, vol.4, N3, pp.44-49