Determine the dispersion relation of an A6 magnetron using conformal finite difference time domain method

Author

Lin, M.C. ; Nieter, C. ; Stoltz, P.H. ; Smithe, D.N.

Author_Institution

Tech-X Corp., Boulder, CO, USA

fYear

2009

fDate

28-30 April 2009

Firstpage

385

Lastpage

386

Abstract

This work introduces a conformal finite difference time domain (CFDTD) method to accurately determine the dispersion relation of an A6 relativistic magnetron. The accuracy is measured by comparing with accurate SUPERFISH calculations based on finite element method. The results show that an accuracy of 99.4% can be achieved by using only 10,000 mesh points with Dey-Mittra algorithm. By comparison, a mesh number of 360,000 is needed to preserve 99% accuracy using conventional FDTD method.

Keywords

dispersion (wave); finite difference time-domain analysis; finite element analysis; magnetrons; A6 relativistic magnetron; Dey-Mittra algorithm; FDTD method; SUPERFISH calculation; conformal finite difference time domain method; dispersion relation; finite element method; Dispersion; Finite difference methods; Finite element methods; Frequency domain analysis; Frequency measurement; Magnetic domains; Magnetic field measurement; Magnetic resonance; Testing; Time domain analysis; A6 magnetron; CFDTD; Dey-Mittra; FEM; FFT; dispersion relation;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference, 2009. IVEC '09. IEEE International

Conference_Location

Rome

Print_ISBN

978-1-4244-3500-5

Electronic_ISBN

978-1-4244-3501-2

Type

conf

DOI

10.1109/IVELEC.2009.5193551

Filename

5193551