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In this paper, the interaction section consisted of the open spherical resonator is designed, and a W-band gyroklystron with the open spherical resonators has been simulated with the MAGIC simulation software. The results of simulations show that the gyroklystron with the spherical resonators operates stably in the operating mode TE102 and no competing modes caused. The output power of about 50 kW...
In order to exploit the cavity resonance effect for enhancing the power conversion efficiency of coaxial vircators, a modification in the drift region is proposed. The modification introduces geometrical parameters which can be varied to change the structure and strength of modes inside the vircator. These cavity parameters have been optimized using particle-in-cell (PIC) simulation to increase the...
We discuss the design and implementation of a waveguide coupler for a sheet-beam coupled-cavity structure. Discussion includes excitation of the fundamental mode with low VSWR, wide bandwidth, circuit sensitivity, and tuning. We conclude with a comparison with round-beam structure, and experimental results of sheet beam coupler.
Cylindrical coaxial cavity resonator with shift-tubes coupled with rectangular waveguide is designed. The gap characteristic impedance and external quality factor of higher order transverse magnetic mode TM310 in the cavity are simulated with high frequency electromagnetic simulator ISFEL-3D. The ununiformity of the characteristic impedance resulted from the coupling aperture is reduced through introduction...
This paper gives a new design for the cavity of Sheet beam Klystron (SBK) which has lot of advantages as well as some design challenges. This cavity design employs dielectric loading for flat field across the beam.
The results of a numerical modeling of two-gaps cavity for powerful multi-beam klystrode (IOT) working as the frequency multiplier on frequency of 2.45 GHz are described. This cavity may be useful for various type of multibeam IOT amplifiers and generators for different application.
Indus-1 is 450 MeV / 150 mA synchrotron radiation source indigenously built at RRCAT, Indore, India. The RF system of Indus-1 consists of 31.613 MHz RF amplifier its associated LLRF (Low Level RF) control & RF cavity for compensation of synchrotron loss of the stored electron beam in storage ring. For proper operation ultra high vacuum is required in RF cavity. To achieve required gap voltage...
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