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Title: Microwave Analysis with Monte Carlo Methods for ECH Transmission Lines

Abstract

A new code framework, MORAMC, is presented which model transmission line (TL) systems consisting of overmoded circular waveguide and other components including miter bends and transmission line gaps. The transmission line is modeled as a set of mode converters in series where each component is composed of one or more converters. The parametrization of each mode converter can account for the fabrication tolerances of physically realizable components. These tolerances as well as the precision to which these TL systems can be installed and aligned gives a practical limit to which the uncertainty of the microwave performance of the system can be calculated. Because of this, Monte Carlo methods are a natural fit and are employed to calculate the probability distribution that a given TL can deliver a required power and mode purity. Several examples are given to demonstrate the usefulness of MORAMC in optimizing TL systems.

Authors:
ORCiD logo [1]; ORCiD logo [1];  [1]
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  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1435269
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Infrared, Millimeter, and Terahertz Waves
Additional Journal Information:
Journal Volume: 39; Journal Issue: 5; Journal ID: ISSN 1866-6892
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Kaufman, Michael C., Lau, Cornwall H., and Hanson, Gregory R. Microwave Analysis with Monte Carlo Methods for ECH Transmission Lines. United States: N. p., 2018. Web. doi:10.1007/s10762-018-0475-5.
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Kaufman, Michael C., Lau, Cornwall H., & Hanson, Gregory R. Microwave Analysis with Monte Carlo Methods for ECH Transmission Lines. United States. doi:10.1007/s10762-018-0475-5.
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Kaufman, Michael C., Lau, Cornwall H., and Hanson, Gregory R. Thu . "Microwave Analysis with Monte Carlo Methods for ECH Transmission Lines". United States. doi:10.1007/s10762-018-0475-5. https://www.osti.gov/servlets/purl/1435269.
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@article{osti_1435269,
title = {Microwave Analysis with Monte Carlo Methods for ECH Transmission Lines},
author = {Kaufman, Michael C. and Lau, Cornwall H. and Hanson, Gregory R.},
abstractNote = {A new code framework, MORAMC, is presented which model transmission line (TL) systems consisting of overmoded circular waveguide and other components including miter bends and transmission line gaps. The transmission line is modeled as a set of mode converters in series where each component is composed of one or more converters. The parametrization of each mode converter can account for the fabrication tolerances of physically realizable components. These tolerances as well as the precision to which these TL systems can be installed and aligned gives a practical limit to which the uncertainty of the microwave performance of the system can be calculated. Because of this, Monte Carlo methods are a natural fit and are employed to calculate the probability distribution that a given TL can deliver a required power and mode purity. Several examples are given to demonstrate the usefulness of MORAMC in optimizing TL systems.},
doi = {10.1007/s10762-018-0475-5},
journal = {Journal of Infrared, Millimeter, and Terahertz Waves},
number = 5,
volume = 39,
place = {United States},
year = {2018},
month = {3}
}
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Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI:  10.1007/s10762-018-0475-5
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Cited by: 1 work
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Figures / Tables:

Figure 1 Figure 1: The MORAMC framework. It primarily consists of a mode propagation solver, MORA; a transmission line deflection solver, DEFLECT; and a set of libraries that handle the Monte Carlo analysis, MORALIB. For sophisticated analysis, computer-aided design (CAD) and finite element analysis codes (FEA) can be incorporated.
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Works referenced in this record:

HE 11 mitre bends and gaps in a circular corrugated waveguide
journal, October 1994

Transmission in Multimode Waveguide with Random Imperfections
journal, May 1962

A Revised iter ec System Baseline Design Proposal
conference, January 2012

  • Henderson, M. A.; Beckett, B.; Darbos, C.
  • Proceedings of the 15th Joint Workshop, Electron Cyclotron Emission and Electron Cyclotron Resonance Heating (EC-15)
  • DOI: 10.1142/9789812814647_0065

WT4 Millimeter Waveguide: TE 01 Transmission in Waveguide with Axial Curvature
journal, December 1977

Power monitor miter bends for high-power microwave transmission
journal, April 2015

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    Figures / Tables found in this record:

    Figure 1 (p. 3)figure
    Figure 2 (p. 5)figure
    Figure 3 (p. 9)figure
    Table 1 (p. 12)table
    Figure 4 (p. 14)figure
    Table 2 (p. 14)table
    Figure 5 (p. 15)figure
    Table 3 (p. 16)table
    Figure 6 (p. 17)figure
    Figure 7 (p. 19)figure
    Figure 8 (p. 20)figure
    Figure 9 (p. 21)figure
    Figure 10 (p. 22)figure
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