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Enhanced Features for Design of Traveling Wave Tubes Using CHRISTINE-1D
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BibTeX
@MISC{David_enhancedfeatures,
author = {John A. David and Carol L. Kory and Hien T. Tran and R. Lawrence Ives and David Chernin and Carol L. Kory (correspondence},
title = {Enhanced Features for Design of Traveling Wave Tubes Using CHRISTINE-1D},
year = {}
}
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Abstract
Traveling wave tubes (TWT’s) are vacuum devices invented in the early 1940’s for amplification of radio frequency (RF) power. These devices are critical for radar, communications and electronic warfare missions in the military, as well as in commercial applications. The physics-based design and simulation code, CHRISTINE-1D, was used in the past to explore different TWT circuit designs and to automate the process of parameter estimation. However, the current capability of CHRISTINE-1D allows optimization of only helix TWT designs, and includes a limited number of optimization goal functions. In addition, the current optimizer in CHRISTINE-1D employs a modified steepest descent method to carry out the optimization process. The objectives of our work are three-fold: (i) to investigate optimization techniques that may be better suited for this problem (for example, simplex type methods such as Nelder-Mead and DIRECT), (ii) allow optimization of non-helix TWTs, (iii) and implement new optimization goal functions. Finally, to show the feasibility of our approach, we apply our optimization algorithms to the problem of designing a folded waveguide slowwave circuit.
Keyphrases
wave tube using christine-1d enhanced feature parameter estimation physics-based design simplex type method electronic warfare mission wave tube folded waveguide modified steepest descent method optimization technique optimization goal function simulation code helix twt design optimization process vacuum device optimization algorithm different twt circuit design current capability current optimizer implement new optimization goal function radio frequency commercial application non-helix twts limited number
