Electromagnetic field analysis and calculation of the resonance characteristics of the loop-gap resonator

Author

Mehdizadeh, Mehrdad ; Ishii, T. Koryu

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Marquette Univ., Milwaukee, WI, USA

Volume

37

Issue

7

fYear

1989

fDate

7/1/1989 12:00:00 AM

Firstpage

1113

Lastpage

1118

Abstract

The electromagnetic field configuration of the loop-gap resonator is analyzed, and expressions for field distributions are derived. The method involves solving Maxwell´s equations for the boundary conditions and matching the internal magnetic fields of the resonator to the evanescent fringing fields by a numerical fitting method. The expressions derived from this analysis are used in the derivation of equations for the resonant frequency and the quality factor of the resonator. The computed results are in good agreement with the measured values for resonant frequency and quality factors

Keywords

boundary-value problems; cavity resonators; electromagnetic fields; Maxwell´s equations; boundary conditions; electromagnetic field configuration; evanescent fringing fields; field distributions; internal magnetic fields; loop-gap resonator; numerical fitting; quality factor; resonance characteristics; Boundary conditions; Electromagnetic analysis; Electromagnetic fields; Frequency measurement; Magnetic analysis; Magnetic field measurement; Magnetic resonance; Maxwell equations; Q factor; Resonant frequency;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.24556

Filename

24556