Title :
Conformal time-domain particle-in-cell simulation of vacuum electronic devices with accurate surface loss
Author :
Cooke, Simon J. ; Stantchev, George M.
Author_Institution :
Naval Res. Lab., Washington, DC, USA
Abstract :
We present two algorithmic improvements to enhance accuracy for large-signal simulations of vacuum electronic amplifiers using the GPU-accelerated, 3D time-domain particle-in-cell code `Neptune´. A new conformal (cut-cell) geometry model with a new algorithm for Ohmic surface loss accurately predicts the dispersive and dissipative electromagnetic properties of complex metal device structures.
Keywords :
electronic engineering computing; graphics processing units; slow wave structures; travelling wave amplifiers; 3D time-domain particle-in-cell code; GPU-accelerated particle-in-cell code; Neptune; conformal geometry model; conformal time-domain particle-in-cell simulation; cut-cell geometry model; dispersive electromagnetic property; dissipative electromagnetic property; metal device structure; ohmic surface loss; slow-wave amplifier; vacuum electronic amplifier; Analytical models; Cavity resonators; Convergence; Geometry; Solid modeling; Surface waves; Time-domain analysis; Conformal FDTD-PIC; GPU; Ohmic surface loss; slow-wave amplifier;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2013 IEEE 14th International
Conference_Location :
Paris
Print_ISBN :
978-1-4673-5976-4
DOI :
10.1109/IVEC.2013.6571090
