Electromagnetic coupling by a wire through a cavity-backed circular aperture in an infinite screen

Persistent Link:
http://hdl.handle.net/10150/276823
Title:
Electromagnetic coupling by a wire through a cavity-backed circular aperture in an infinite screen
Author:
Wright, Diana Beth, 1963-
Issue Date:
1988
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:
The problem of a wire penetrating a circular aperture in an infinite screen and coupling energy into a cavity behind that screen is considered. We formulate an integral equation in terms of the electric field in the aperture. This integral equation is solved using two approximate methods: a zeroth-order approximation valid at low frequencies, and the method of moments. In addition, we introduce an equivalent circuit model to aid in our physical interpretation of the problem. Numerical results for the interior current on the wire and for the equivalent circuit admittance parameters are presented in order to provide a comparison between the two approximations. Inside the cavity, we examine the components of the electric field as a function of position. Finally, the exterior magnetic field far from the aperture is studied as a function of frequency. We examine the relationship between interior resonance features associated with the presence of the cavity and observations of the exterior field.
Type:
text; Thesis-Reproduction (electronic)
Keywords:
Shielding (Electricity); Electric wire.; Holes.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College; Electrical and Computer Engineering
Degree Grantor:
University of Arizona
Advisor:
Dudley, Donald G.

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleElectromagnetic coupling by a wire through a cavity-backed circular aperture in an infinite screenen_US
dc.creatorWright, Diana Beth, 1963-en_US
dc.contributor.authorWright, Diana Beth, 1963-en_US
dc.date.issued1988en_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.abstractThe problem of a wire penetrating a circular aperture in an infinite screen and coupling energy into a cavity behind that screen is considered. We formulate an integral equation in terms of the electric field in the aperture. This integral equation is solved using two approximate methods: a zeroth-order approximation valid at low frequencies, and the method of moments. In addition, we introduce an equivalent circuit model to aid in our physical interpretation of the problem. Numerical results for the interior current on the wire and for the equivalent circuit admittance parameters are presented in order to provide a comparison between the two approximations. Inside the cavity, we examine the components of the electric field as a function of position. Finally, the exterior magnetic field far from the aperture is studied as a function of frequency. We examine the relationship between interior resonance features associated with the presence of the cavity and observations of the exterior field.en_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
dc.subjectShielding (Electricity)en_US
dc.subjectElectric wire.en_US
dc.subjectHoles.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplineElectrical and Computer Engineeringen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorDudley, Donald G.en_US
dc.identifier.proquest1335070en_US
dc.identifier.oclc21540111en_US
dc.identifier.bibrecord.b17271976en_US
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