Three Dimensional Simulation Of Traveling Wave Tube Cold Test Characteristics Using Cst Microwave Studio
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Three-Dimensional Simulation of Traveling-Wave Tube Cold-Test Characteristics Using CST Microwave Studio
Author: National Aeronautics and Space Adm Nasa
language: en
Publisher: Independently Published
Release Date: 2018-09-28
The electromagnetic field simulation software package CST MICROWAVE STUDIO (MWS) was used to compute the cold-test parameters - frequency-phase dispersion, on-axis impedance, and attenuation - for a traveling-wave tube (TWT) slow-wave circuit. The results were compared to experimental data, as well as to results from MAFIA, another three-dimensional simulation code from CST currently used at the NASA Glenn Research Center (GRC). The strong agreement between cold-test parameters simulated with MWS and those measured experimentally demonstrates the potential of this code to reduce the time and cost of TWT development. Chevalier, Christine T. and Herrmann, Kimberly A. and Kory, Carol L. and Wilson, Jeffrey D. and Cross, Andrew W. and Santana, Samuel Glenn Research Center NASA/TM-2003-212486, NAS 1.15:212486, E-14028...
Three-Dimensional Simulation of Traveling-Wave Tube Cold-Test Characteristics Using Mafia
Author: National Aeronautics and Space Adm Nasa
language: en
Publisher: Independently Published
Release Date: 2018-10-18
The three-dimensional simulation code MAFIA was used to compute the cold-test parameters - frequency-phase dispersion, beam on-axis interaction impedance, and attenuation - for two types of traveling-wave tube (TWT) slow-wave circuits. The potential for this electromagnetic computer modeling code to reduce the time and cost of TWT development is demonstrated by the high degree of accuracy achieved in calculating these parameters. Generalized input files were developed for ferruled coupled-cavity and TunneLadder slow-wave circuits. These files make it easy to model circuits of arbitrary dimensions. The utility of these files was tested by applying each to a specific TWT slow-wave circuit and comparing the results with experimental data. Excellent agreement was obtained. Kory, Carol L. and Wilson, Jeffrey D. Glenn Research Center NAS3-25776