Title :
Drive signal frequency multiplication in a hybrid antenna-amplifier device
Author :
Shlapakovski, A.S. ; Grushin, I.I. ; Zhou, Z. ; Schamiloglu, E.
Author_Institution :
Inst. of Nucl. Phys., Tomsk Polytech. Univ., Russia
Abstract :
A theory has been developed to perform one-dimensional nonlinear multi-mode simulations of a hybrid antenna-amplifier, the non-conventional Cherenkov maser configuration that comprises a waveguide with an inner dielectric rod and an annular electron beam, and is driven by a microwave signal in the fundamental nonaxisymmetric mode. The harmonics of the drive signal frequency can grow due to the fact that they fall within the amplification bands of higher-order modes of the system. At certain parameters, the output power level at the second or third harmonic can significantly exceed that of the main frequency. The harmonic content of the output signal can be controlled by changing the place of the beam removal out of the interaction space, or by variation of the input signal frequency, or by changing the input signal field structure from fixed to azimuthally rotating.
Keywords :
Cherenkov radiation; harmonic generation; masers; microwave amplifiers; microwave antennas; Cherenkov maser; annular electron beam; dielectric rod; frequency multiplication; harmonic generation; hybrid antenna-amplifier device; microwave drive signal; nonaxisymmetric mode; one-dimensional nonlinear multi-mode simulation; waveguide; Antenna theory; Dielectrics; Electron beams; Frequency conversion; Masers; Microwave antennas; Microwave devices; Microwave theory and techniques; Power generation; Waveguide theory;
Conference_Titel :
Pulsed Power Plasma Science, 2001. PPPS-2001. Digest of Technical Papers
Conference_Location :
Las Vegas, NV, USA
Print_ISBN :
0-7803-7120-8
DOI :
10.1109/PPPS.2001.1002155