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Eigenfrequencies of an electromagnetic rectangular cavity with an inner small sphere
This item is provided by the institution :
National Technical University of Athens
Repository :
Digital Library of National Technical University of Athens | Dspace@NTUA
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ΕΚΤ item type
Journal part
(EN)
Scientific article
(EN)
EKT year
1993
(EN)
EKT historical period
Title
Eigenfrequencies of an electromagnetic rectangular cavity with an inner small sphere (EN)
Creator
Roumeliotis, JA (EN)
Kokkorakis, GC (EN)
Description
Ana;ytical expressions for the eigenfrequencies of an electromagnetic rectangular cavity eith an inner electrically small sphere are derived, for both magnetic and electric modes. The walls of the rectangular cavity are perfectly conducting. The small sphere is either perfectly conducting or lossless dielectric. Rectangular vector wave functions, as well as their expansion in terms of cylindrical vector wave functions and finally in terms of spherical ones, are used. The results are useful in problems connected with excitation or probing of resonant cavities, for cavities containing small inhomogeneities, as well as in cases in which we want to determine the permittivities or magnetic permeabilities of various materials, by measuring the eigenfrequency shifts caused by the introduction of small samples of them, inside cavities. Graphical results for some of the lower order modes are given for various values of the parameters and for both kinds of mode. © 1993. (EN)
Type
journalArticle (EN)
Subject
Mathematics, Interdisciplinary Applications (EN)
Engineering, Multidisciplinary (EN)
Engineering, Electrical & Electronic (EN)
Automation & Control Systems (EN)
Provider
National Technical University of Athens
Repository / collection
Digital Library of National Technical University of Athens | Dspace@NTUA
Subcollections
Κεντρική Βιβλιοθήκη Ε.Μ.Π.
Ιδρυματικό Αποθετήριο
Δημοσιεύσεις μελών Δ.Ε.Π. σε περιοδικά
Journal
Journal of the Franklin Institute (EN)
Language
English
Issued
1993 (EN)
Identifier
http://hdl.handle.net/123456789/10944
330 (EN)
0016-0032 (EN)
ISI:A1993LB38400008 (EN)
3 (EN)
525 (EN)
549 (EN)
Publisher
PERGAMON-ELSEVIER SCIENCE LTD (EN)
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