Persistent Link:
http://hdl.handle.net/10150/186163
Title:
An asymptotic analysis of a leaky parallel-plate waveguide.
Author:
Pasik, Michael Francis.
Issue Date:
1993
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
An asymptotic analysis of a leaky parallel-plate waveguide is presented. The walls of the waveguide consist of bonded wire meshes which are modeled using a sheet impedance boundary condition. The fields are excited by magnetic line sources exterior to the waveguide. The wire meshes allow for coupling between the interior of the waveguide and the exterior region. In addition, each mesh can support a surface wave. We employ Fourier transform techniques to derive an integral representation for the magnetic field. We present various interpretations of the integral representation and evaluate the integral asymptotically using the method of steepest descents. The case of a pole near the saddle point is considered in detail. The integral is also evaluated numerically to determine the accuracy of the asymptotic results. The contributions to the radiation pattern of the structure from the surface-wave and leaky-wave poles, as well as the saddle point, are considered individually. The parameters of the structure are adjusted to exploit the contributions from the poles in the near far zone. The transient response of the structure to a double exponential pulse is also investigated. An alternative representation which is computationally efficient for computing the transient response in early time is derived. The use of the alternative representation for dense distributions of leaky-wave poles is also considered.
Type:
text; Dissertation-Reproduction (electronic)
Keywords:
Dissertations, Academic.; Electrical engineering.
Degree Name:
Ph.D.
Degree Level:
doctoral
Degree Program:
Electrical and Computer Engineering; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
Dudley, Donald G.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleAn asymptotic analysis of a leaky parallel-plate waveguide.en_US
dc.creatorPasik, Michael Francis.en_US
dc.contributor.authorPasik, Michael Francis.en_US
dc.date.issued1993en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractAn asymptotic analysis of a leaky parallel-plate waveguide is presented. The walls of the waveguide consist of bonded wire meshes which are modeled using a sheet impedance boundary condition. The fields are excited by magnetic line sources exterior to the waveguide. The wire meshes allow for coupling between the interior of the waveguide and the exterior region. In addition, each mesh can support a surface wave. We employ Fourier transform techniques to derive an integral representation for the magnetic field. We present various interpretations of the integral representation and evaluate the integral asymptotically using the method of steepest descents. The case of a pole near the saddle point is considered in detail. The integral is also evaluated numerically to determine the accuracy of the asymptotic results. The contributions to the radiation pattern of the structure from the surface-wave and leaky-wave poles, as well as the saddle point, are considered individually. The parameters of the structure are adjusted to exploit the contributions from the poles in the near far zone. The transient response of the structure to a double exponential pulse is also investigated. An alternative representation which is computationally efficient for computing the transient response in early time is derived. The use of the alternative representation for dense distributions of leaky-wave poles is also considered.en_US
dc.typetexten_US
dc.typeDissertation-Reproduction (electronic)en_US
dc.subjectDissertations, Academic.en_US
dc.subjectElectrical engineering.en_US
thesis.degree.namePh.D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.disciplineElectrical and Computer Engineeringen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.chairDudley, Donald G.en_US
dc.contributor.committeememberCangellaris, Andreas C.en_US
dc.contributor.committeememberDvorak, Steven L.en_US
dc.contributor.committeememberLamb, George L.en_US
dc.contributor.committeememberChow, Kwoken_US
dc.identifier.proquest9322663en_US
dc.identifier.oclc715421483en_US
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