Speaker
Dr
Ahmed Elfrgani
(University of New Mexico)
Description
The results of an experimental investigation of a relativistic backward wave oscillator (RBWO) in E-band are presented. An overmoded slow wave structure (SWS) was designed to generate a higher order mode (TM03) at 78GHz.1 Rectangular corrugations were used for the SWS having surface waves with upper cutoff frequencies above 90 GHz (E-band). The characteristics of this millimeter wave source were studied for electron energies 400 – 500 keV and beam currents 2.5 – 3.5 kA.
The RBWO was driven by a voltage pulse that has a half sinusoidal wave-like shape and FWHM duration of 12 ns (SINUS-6 accelerator). Open-shutter photography and a neon bulb array were used to capture the radiation pattern of the TM03 output mode.
- A. Elfrgani, A. Kuskov, M.I. Fuks, and E. Schamiloglu, “Millimeter Wave Overmoded Relativistic Backward Wave Oscillator,” in Proc. IVEC 2018 (Monterey, CA, 2018), p. 1.
- Work supported by DARPA Grant #N66001-16-1-4042
Authors
Dr
Ahmed Elfrgani
(University of New Mexico)
Dr
Firas Ayoub
(University of New Mexico)
Artem Kuskov
Mr
Dmitrii Andreev
(University of New Mexico)
Mr
Antonio De Alleluia
(University of New Mexico)
Mr
Braulio Martinez-Hernandez
(University of New Mexico)
Mr
Kevin Wang Huang
(University of New Mexico)
Ms
Stacie Hernandez
(University of New Mexico)
Edl Schamiloglu
(University of New Mexico)
