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

fYear

2013

fDate

1-6 Sept. 2013

Firstpage

1

Lastpage

2

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 TM_0,6 and surface HE_20,1 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;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on

Conference_Location

Mainz

Type

conf

DOI

10.1109/IRMMW-THz.2013.6665535

Filename

6665535