Last edited by Zulkishura
Friday, July 10, 2020 | History

3 edition of Three-dimensional simulation of traveling-wave tube cold-test characteristics using MAFIA found in the catalog.

Three-dimensional simulation of traveling-wave tube cold-test characteristics using MAFIA

Three-dimensional simulation of traveling-wave tube cold-test characteristics using MAFIA

  • 394 Want to read
  • 40 Currently reading

Published by National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Program, National Technical Information Service, distributor] in [Washington, DC], [Springfield, Va .
Written in English

    Subjects:
  • Computer aided design.,
  • Computerized simulation.,
  • Three dimensional models.,
  • Traveling wave tubes.

  • Edition Notes

    Other titlesThree dimensional simulation of traveling wave tube cold-test characteristics using MAFIA.
    StatementCarol L. Kory and Jeffrey D. Wilson.
    SeriesNASA technical paper -- 3513.
    ContributionsWilson, Jeffrey D., United States. National Aeronautics and Space Administration. Scientific and Technical Information Program.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL15426179M

    High frequency characteristics of sine waveguide SWSs are generally calculated by using three–dimensional simulation softwares (CST, HFSS), which are performed by the finite-difference or finite-element method in different modifications. However, the long simulation time limits its use in the design phase. Get this from a library! Simulation of tunneLadder traveling-wave tube input/output coupler characteristics using MAFIA. [Carol L Kory; A Haq Qureshi; United States. National Aeronautics and Space Administration.].

    Abstract. The helical slow-wave circuit embodies a helical coil of rectangular tape supported in a metal barrel by dielectric support rods. Although the helix slow-wave circuit remains the mainstay of the traveling-wave tube (TWT) industry because of its exceptionally wide bandwidth, a full helical circuit, without significant dimensional approximations, has not been successfully . A PCB NOISE ANALYSIS REGARDING EMP PENETRATION USING AN ELECTROMAGNETIC TOPOLOGY METHOD By S. M. Han, J.-J. Bang, C.-S. Huh, and J.-S. Choi. Full Article PDF ( KB) Abstract: The usability of the EMT (Electromagnetic Topology) method is discussed and verified in this paper.

    C. T. Chevalier from Analex Corp. in collaboration with NASA Glenn Research Center, described a comparison of simulated cold test characteristics using two computer codes from Computer Simulation Technology (CST), MAFIA and Microwave Studio (MWS).   With the advent of accurate three- dimensional helical circuit models, these standard approximations can be fully investigated. This paper addresses the most prominent approximations made in the analysis for measured interaction impedance by Lagerstrom and investigates their accuracy using the three-dimensional simulation code : Carol L. Kory, James a. Dayton.


Share this book
You might also like
Social security

Social security

Grammar ad libs

Grammar ad libs

Liberty: or, the meeting of the Parliament. A poem

Liberty: or, the meeting of the Parliament. A poem

Coffins for three.

Coffins for three.

Agricultural and crop nutrient review

Agricultural and crop nutrient review

The universal encyclopedia of machines.

The universal encyclopedia of machines.

Selected writings of Thomas de Quincey

Selected writings of Thomas de Quincey

County Business Patterns Texas 1998 (County Business Patterns Texas)

County Business Patterns Texas 1998 (County Business Patterns Texas)

Edible Indoor Garden

Edible Indoor Garden

The Use of chemicals (other than herbicides) in forest and nursery - 1983

The Use of chemicals (other than herbicides) in forest and nursery - 1983

impact of the channel tunnel and the single European market

impact of the channel tunnel and the single European market

Three-dimensional simulation of traveling-wave tube cold-test characteristics using MAFIA Download PDF EPUB FB2

Three-dimensional simulation of traveling-wave tube cold-test characteristics using MAFIA Article (PDF Available) May with 35 Reads How we measure 'reads'. English, Book, Government publication, Microform edition: Three-dimensional simulation of traveling-wave tube cold-test characteristics using MAFIA [microform] / Carol L.

Kory and Jeffrey D. Wilson. Kory, Carol L. @article{osti_, title = {Three-dimensional simulation of helix traveling-wave tube cold-test characteristics using MAFIA}, author = {Kory, C L}, abstractNote = {A critically important step in the traveling-wave tube (TWT) design process is the cold-testing of the slow-wave circuit for dispersion, beam interaction impedance and RF losses.

Simulation of TunneLadder traveling-wave tube cold-test characteristics: Implementation of the three-dimensional, electromagnetic circuit analysis code micro-SOS Article (PDF Available). Abstract. 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 : Jeffrey D.

Wilson and Carol L. Kory. Three-Dimensional Simulation of Traveling-Wave Tube Cold-Test Characteristics Using CST MICROWAVE STUDIO Christine T.

Chevalier Analex Corporation Brook Park, Ohio Kimberly A. Herrmann National Aeronautics and Space Administration Glenn Research Center Cleveland, Ohio Carol L. Kory Analex Corporation Brook Park, Ohio Jeffrey D. Wilson. The cold-test parameters including dispersion, impedance, and attenuation have been calculated for a helix traveling-wave tube (TWT) slow-wave circuit using MAFIA, the three-dimensional (3.

tube (TWT) slow-wave circuit were calculated using the three-dimensional simulation code Micro-SOS. The utilization of the code to reduce costly. In this paper, the software cold-test simulation method to obtain RF dispersion, interaction impedance by MAFIA software is discussed considering effect of the conducting barrel in the millimeter-wave TWT.

The dispersion simulation result is obtained more consistent with experiment data than the method that ignoring effect of the conducting barrel. Abstract. Previously, it was shown that MAFIA (solutions of Maxwell's equations by the Finite Integration Algorithm), a three-dimensional simulation code, can be used to produce accurate cold-test characteristics including frequency-phase dispersion, interaction impedance, and attenuation for traveling-wave tube (TWT) slow-wave structures.

C. Kory, “Three-dimensional simulation of traveling-wave tube cold-test characteristics using MAFIA[R]”, NASA Technical Paper 35 (). Download references Acknowledgement.

Previously, it was shown that MAFIA (solutions of Maxwell's equations by the Finite Integration Algorithm) [1, 2], a three-dimensional simulation code, can be used to produce accurate cold-test characteristics including frequency-phase dispersion, interaction impedance, and attenuation for traveling-wave tube (TWT) slow-wave structures [3].

Three-Dimensional Simulation of Traveling-Wave Tube Cold-Test Characteristics Using CST MICROWAVE STUDIO 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. 7 Kory C L & Wilson J D, Three dimensional simulation of traveling-wave tube cold-test Characteristics using MAFIA, NASA TP8 Mradula & Carter RG, Modeling of coupled-cavity slow wave structure with MAFIA, Report No MRG/91/3, Lancaster University, UK, April Fig.

8—Electric field pattern for TM 01 mode. Kory, “Three-dimensional simulation of traveling-wave tube cold-test characteristics using MAFIA[R]”, NASA Technical Paper,C.

Kory and J. Dayton, “Computational investigation of experimental interaction impedance obtained by perturbation for helical traveling-wave tube structures,” IEEE Transactions on. In this article, Cold characteristics of a miniature coupled cavity slow-wave structure are simulated and discussed by using 3-D electromagnetic software MAFIA.

The results show that this miniature structure can work at near THz with high interaction impedance about 20 ohm and can be expected to be a promising THz radiation source.

Get this from a library. Three-dimensional simulation of traveling-wave tube cold-test characteristics using MAFIA. [Carol L Kory; Jeffrey D Wilson; United States. National Aeronautics and Space Administration. Scientific and Technical Information Program.].

RF input/output coupler characteristics for the TunneLadder traveling-wave tube have been calculated using the three-dimensional computer code, MAFIA and compared to experimental data with good agreement.

Theory behind coupling of the TunneLadder interaction circuit to input and output waveguides is presented and VSWR data is cal. Kory, and J. Wilson, "Three-Dimensional Simulation of Coupled-Cavity Traveling-Wave Tube Cold­ Test Characteristics Using MAFIA," NASA TP, May 6.

Wilson, "Revised NASA Axially Symmetric Ring Model for Traveling-Wave Tubes,". NASA TP, January TABLE I.-MAJOR DESIGN PARAMETERS AT MID-BAND. Three-dimensional simulation of helix traveling-wave tube cold-test characteristics using MAFIA Conference Kory, C L A critically important step in the traveling-wave tube (TWT) design process is the cold-testing of the slow-wave circuit for.

Opt. Generation Amplification, traveling wave pp. tubes Kory, C.L. (), “Three-dimensional simulation of traveling-wave tube cold-test characteristics using MAFIA [R]”, Technical Paper No.NASA.The most prominent approximations made in the analysis were addressed and fully investigated for their accuracy by using the three-dimensional electromagnetic simulation code MAFIA (Solution of Maxwell's Equations by the Finite Integration Algorithm) (refs.

3 and 4).A comparison of three-dimensional simulations of traveling-wave tube cold-test characteristics using CST MICROWAVE STUDIO and MAFIA C. Chevalier, K. Herrmann, C.

Kory, J. Wilson, A. W. Cross Third IEEE International Vacuum .