Abstract

The realization of single-mode generation in a microwave oscillator is considered for a relativistic resonant traveling-wave tube (RTWT) with spiral Bragg reflectors at the ends of a multimode electrodynamic system. An oversized azimuthally symmetric slow-wave structure was chosen so that only two field structures are synchronous with a 1-MeV electron beam. Experiments using different means that allow us to separate these field structures are described. As a result, two radiation patterns were observed separately, which are a narrow Gaussian-like wave beam with a power of up to 1.5 GW and an efficiency of about 20% in 40-ns pulses and radiation corresponding to the E01 mode with four times weaker power. The dependences of RTWT operation on the parameters of the electron beam, the length of interaction space, reflection coefficients, and the amplitude of guide axial magnetic field are investigated in detail.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.