Title :
PIC simulations and experimental design of a Cherenkov mm-wave source
Author :
Phipps, A.R. ; MacLachlan, A.J. ; Robertson, Craig W. ; Konoplev, I.V. ; Phelps, Alan D. R. ; Cross, Adrian W.
Author_Institution :
Dept. of Phys., Univ. of Strathclyde, Glasgow, UK
Abstract :
Numerical 3D PIC code simulations show that Slow-Wave-Structures SWSs demonstrate excellent potential as a virtual dielectric in a Cherenkov based Backward Wave Oscillator (BWO). CST Microwave Studio confirms internal mode coupling between a volume TM0,6 and surface HE20,1 modes resulting in the creation of a high-Q cavity, necessary for the Cherenkov mechanism to be exploited. MAGIC 3D demonstrates output powers of ~2.5 MW within a 30 ns timeframe at W-Band frequencies (75-110) GHz. Successful numerical modeling underpins the current experimental investigation.
Keywords :
Cherenkov radiation; backward wave oscillators; millimetre wave generation; slow wave structures; Cherenkov based backward wave oscillator; Cherenkov mechanism; Cherenkov millimeter wave source; Microwave Studio; PIC simulation; W-Band frequencies; frequency 75 GHz to 110 GHz; high-Q cavity; slow wave structure; virtual dielectric; Cathodes; Cavity resonators; Couplings; Electron beams; Oscillators; Surface waves; Three-dimensional displays;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
Conference_Location :
Mainz
DOI :
10.1109/IRMMW-THz.2013.6665535
