A Cross-Band Tunable Relativistic Magnetron With All Cavity Axial Extraction

A cross-band tunable relativistic magnetron (RM) with all-cavity axial extraction (ACAE) is presented. In this configuration, a single tuner with six sectorial metal plates is placed between the cavity and the extraction waveguide of a relativistic magnetron with all-cavity axial extraction (ACAE-RM...

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Bibliographic Details
Published in:IEEE transactions on electron devices 2023-03, Vol.70 (3), p.1283-1287
Main Authors: Qin, Fen, Xu, Sha, Zhang, Yong, Lei, Lu-Rong, Ju, Bin-Quan, Fang, Xiang-He, Wang, Dong
Format: Article
Language:English
Subjects:
All-cavity axial extraction (ACAE)
Anodes
axial tuning
Electromagnetic waveguides
Frequency ranges
high power microwave (HPM)
High power microwaves
Horn antennas
Metal plates
Metals
Microwave antennas
Microwave oscillators
Relativistic effects
relativistic magnetron (RM)
Resonant frequencies
tunable
Tuners
Tuning
Waveguides
Wideband
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Summary:A cross-band tunable relativistic magnetron (RM) with all-cavity axial extraction (ACAE) is presented. In this configuration, a single tuner with six sectorial metal plates is placed between the cavity and the extraction waveguide of a relativistic magnetron with all-cavity axial extraction (ACAE-RM) in the axial direction. The resonant frequency is tuned agilely by this tuner when it moves in the axial direction. Particle-in-cell (PIC) simulation results showed that this tube has a tuning range between 1.76 and 2.49 GHz, corresponding to a relative bandwidth of 34.3% about a center frequency of 2.125 GHz. A wideband horn antenna had been designed to radiate high-power microwave (HPM) in the desired frequency range for experimental research. Preliminary experimental research had been carried out that validated that the presented tunable RM has a wide tuning range. HPM oscillating from 1.79 to 2.55 GHz with power from 0.7 to 1.5 GW had been detected when the tube was tuned to specific parameters.
ISSN:0018-9383
1557-9646
DOI:10.1109/TED.2023.3238387