Eigenfrequencies of an electromagnetic rectangular cavity with an inner small sphere

Roumeliotis, JA; Kokkorakis, GC

dc.contributor.author	Roumeliotis, JA	en
dc.contributor.author	Kokkorakis, GC	en
dc.date.accessioned	2014-03-01T01:09:23Z
dc.date.available	2014-03-01T01:09:23Z
dc.date.issued	1993	en
dc.identifier.issn	0016-0032	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/10944
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-38249003448&partnerID=40&md5=bd0462347e0aa9e99922b2d8f829d364	en
dc.subject.classification	Automation & Control Systems	en
dc.subject.classification	Engineering, Multidisciplinary	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.classification	Mathematics, Interdisciplinary Applications	en
dc.title	Eigenfrequencies of an electromagnetic rectangular cavity with an inner small sphere	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1993	en
heal.abstract	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
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	Journal of the Franklin Institute	en
dc.identifier.isi	ISI:A1993LB38400008	en
dc.identifier.volume	330	en
dc.identifier.issue	3	en
dc.identifier.spage	525	en
dc.identifier.epage	549	en