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3D Modeling, Analysis, and Design of a Traveling-Wave Tube Using a Modified Ring-Bar Structure with Rectangular Transmission Lines Geometry.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	3D Modeling, Analysis, and Design of a Traveling-Wave Tube Using a Modified Ring-Bar Structure with Rectangular Transmission Lines Geometry./
Author:	Alhuwaidi, Sadiq Ali.
Description:	1 online resource (353 pages)
Notes:	Source: Dissertation Abstracts International, Volume: 79-05(E), Section: B.
Contained By:	Dissertation Abstracts International79-05B(E).
Subject:	Engineering. -
Online resource:	click for full text (PQDT)
ISBN:	9780355504538

3D Modeling, Analysis, and Design of a Traveling-Wave Tube Using a Modified Ring-Bar Structure with Rectangular Transmission Lines Geometry.
Alhuwaidi, Sadiq Ali.

3D Modeling, Analysis, and Design of a Traveling-Wave Tube Using a Modified Ring-Bar Structure with Rectangular Transmission Lines Geometry. - 1 online resource (353 pages)

Source: Dissertation Abstracts International, Volume: 79-05(E), Section: B.

Thesis (Ph.D.)--University of Colorado Colorado Springs, 2017.

Includes bibliographical references

A novel slow-wave structure of the traveling-wave tube consisting of rings and rectangular coupled transmission lines is modeled, analyzed, and designed in the frequency range of 1.89-2.72 GHz. The dispersion and interaction impedance characteristics are investigated using High Frequency Structure Simulator, HFSS, and a power run is carried out using Finite-Difference Time-Domain (FDTD) code, VSim. The performance of the design providing a better output power, gain, bandwidth, and efficiency is compared to the conventional and existing designs by implementing cold- and hot-test simulations. In addition, an electron gun and periodic permanent magnet, PPM, is designed using EGUN code and ANSYS Maxwell, respectively. The electron beam has a beam voltage of 262 kV, beam current of 12 A, cathode emission density of 5.968 A/cm 2, and minimum radius of 2.0 mm. The required gun parameters and magnetic field levels, including the geometrical quantities, are calculated to produce the appropriate electron flow and achieve adequate beam stability. Iterations and analysis of those quantities are provided to properly understand the procedure of the design.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9780355504538Subjects--Topical Terms:

561152
Engineering.
Index Terms--Genre/Form:

554714
Electronic books.

3D Modeling, Analysis, and Design of a Traveling-Wave Tube Using a Modified Ring-Bar Structure with Rectangular Transmission Lines Geometry.
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245 1 0 $a 3D Modeling, Analysis, and Design of a Traveling-Wave Tube Using a Modified Ring-Bar Structure with Rectangular Transmission Lines Geometry.
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500 $a Source: Dissertation Abstracts International, Volume: 79-05(E), Section: B.
500 $a Adviser: Heather Song.
502 $a Thesis (Ph.D.)--University of Colorado Colorado Springs, 2017.
504 $a Includes bibliographical references
520 $a A novel slow-wave structure of the traveling-wave tube consisting of rings and rectangular coupled transmission lines is modeled, analyzed, and designed in the frequency range of 1.89-2.72 GHz. The dispersion and interaction impedance characteristics are investigated using High Frequency Structure Simulator, HFSS, and a power run is carried out using Finite-Difference Time-Domain (FDTD) code, VSim. The performance of the design providing a better output power, gain, bandwidth, and efficiency is compared to the conventional and existing designs by implementing cold- and hot-test simulations. In addition, an electron gun and periodic permanent magnet, PPM, is designed using EGUN code and ANSYS Maxwell, respectively. The electron beam has a beam voltage of 262 kV, beam current of 12 A, cathode emission density of 5.968 A/cm 2, and minimum radius of 2.0 mm. The required gun parameters and magnetic field levels, including the geometrical quantities, are calculated to produce the appropriate electron flow and achieve adequate beam stability. Iterations and analysis of those quantities are provided to properly understand the procedure of the design.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2018
538 $a Mode of access: World Wide Web
650 4 $a Engineering. $3 561152
650 4 $a Early childhood education. $3 557157
655 7 $a Electronic books. $2 local $3 554714
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