2013
DOI: 10.2528/pierb13031804
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Propagation of Electromagnetic Waves Guided by the Anisotropically Conducting Model of a Tape Helix Supported by Dielectric Rods

Abstract: Abstract-The practically important case of a dielectric-loaded tape helix enclosed in a coaxial perfectly conducting cylindrical shell is analysed in this paper. The dielectric-loaded tape helix for guided electromagnetic wave propagation considered here has infinitesimal tape thickness and infinite tape-material conductivity. The homogeneous boundary value problem is solved taking into account the exact boundary conditions similar to the case of anisotropically conducting open tape helix model [1,2]. The boun… Show more

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Cited by 12 publications
(9 citation statements)
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“…We make use of the dielectric loaded tape helix structure mentioned in [7], except that, the wedge-shaped dielectric support rods are replaced by a rectangular shaped support structure. Accordingly, we consider a tape helix of infinite length, constant pitch, constant tape width, infinitesimal tape thickness and infinite tape material conductivity surrounded by a dielectric of effective permittivity ɛ eff , enclosed in a coaxial metallic outer conductor as in [7]. In the cylindrical coordinate system with coordinates (ρ, j, z), the z-coordinate is chosen as the tape helix axis as shown in Fig.…”
Section: Problem Formulationmentioning
confidence: 99%
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“…We make use of the dielectric loaded tape helix structure mentioned in [7], except that, the wedge-shaped dielectric support rods are replaced by a rectangular shaped support structure. Accordingly, we consider a tape helix of infinite length, constant pitch, constant tape width, infinitesimal tape thickness and infinite tape material conductivity surrounded by a dielectric of effective permittivity ɛ eff , enclosed in a coaxial metallic outer conductor as in [7]. In the cylindrical coordinate system with coordinates (ρ, j, z), the z-coordinate is chosen as the tape helix axis as shown in Fig.…”
Section: Problem Formulationmentioning
confidence: 99%
“…The radius of the helix and the inner radius of the outer cylindrical conductor from the axis of the tape helix are a and b, respectively, with the tape pitch p, the tape width in the axial direction w, and the pitch angle c being defined as cot c = 2pa/p. The notation and terminology employed are as in [7] to make the work tractable.…”
Section: Problem Formulationmentioning
confidence: 99%
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“…Work on a large-signal field theory for a linear beam travelling wave tube amplifier (TWTA) making use of the dielectric-loaded tape-helix model analysed in [20] for the slow-wave structure is in progress and will be reported in due course.…”
Section: Concluding Commentsmentioning
confidence: 99%