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Finding resonant frequencies for high loss dielectrics in cylindrical cavities
Author(s) -
PenarandaFoix Felipe L.,
CatalaCivera Jose M.,
Canós Antoni J.,
GarciaBanos Beatriz
Publication year - 2015
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.20889
Subject(s) - resonant cavity , microwave , microwave cavity , permittivity , dielectric , mode (computer interface) , argument (complex analysis) , root (linguistics) , materials science , layer (electronics) , physics , dielectric permittivity , acoustics , optoelectronics , optics , composite material , chemistry , computer science , quantum mechanics , philosophy , laser , biochemistry , linguistics , operating system
This article proposes the use of argument principle method (APM) to find all complex resonant frequencies in a three layer cylindrical cavity. APM guarantees that no root is lost and frequencies can be associated with the resonant mode. The roots can be used to find permittivity of a material inside a cavity. © 2015 Wiley Periodicals, Inc. Int J RF and Microwave CAE 25:530–535, 2015.