Title :
Traveling-wave tube amplifier model to predict high-order modulation intersymbol interference
Author :
Kory, Carol L. ; Andro, Monty ; Wilson, Jeffrey D.
Author_Institution :
Analex Corp., Cleveland, OH, USA
Abstract :
In an attempt to develop a more accurate model to correlate intersymbol interference (ISI) with the traveling-wave tube amplifier (TWTA) and the operational signal, a fully three-dimensional (3D), time-dependent, TWT interaction model has been developed using the electromagnetic particle-in-cell (PIC) code MAFIA (Solution of MAxwell´s equations by the Finite-Integration-Algorithm). The MAFIA TWT interaction model will be described, and results will be presented where this model was used to investigate the accuracy of the assumptions made in the Signal Processing Workstation (SPW) TWT black-box model.
Keywords :
intersymbol interference; travelling wave amplifiers; MAFIA code; SPW black-box model; electromagnetic particle-in-cell simulation; high-order modulation; intersymbol interference; three-dimensional model; traveling wave tube amplifier; Bandwidth; Digital modulation; Electromagnetic modeling; Frequency conversion; Intersymbol interference; Nonlinear distortion; Optical reflection; Power system modeling; Predictive models; Wideband;
Conference_Titel :
Vacuum Electronics Conference, 2002. IVEC 2002. Third IEEE International
Print_ISBN :
0-7803-7256-5
DOI :
10.1109/IVELEC.2002.999394
