Rigorous analysis of coupling in dielectric resonators

Document Type

Article

Publication Date

1-1-1990

Abstract

The theory of analyzing a shielded dielectric resonator (DR) structure consisting of a DR placed on a dielectric substrate with a very low dielectric constant spacer in-between and enclosed by a metallic shielding is presented. The field equations are obtained by using both the axial mode matching and radial mode matching method. The technique used in the analysis is based on dividing the resonator structure into partial regions and regarding these as sections of dielectrically loaded waveguides. The resulting transcendental equation is obtained by enforcing the continuity of the tangential field components inside each partial regions and the condition of vanishing tangential electric field on the metallic enclosure. As an example, a simplified version of the DR configuration has been solved and numerically evaluated using the theory of mode matching method to obtain the coupling coefficient between microstrip line and the magnetically coupled DR. The results are in good agreement with the experimental values. © 1990, IEEE. All rights reserved.

Identifier

0025404206 (Scopus)

Publication Title

IEEE Transactions on Magnetics

External Full Text Location

https://doi.org/10.1109/20.106423

e-ISSN

19410069

ISSN

00189464

First Page

735

Last Page

738

Issue

2

Volume

26

Grant

4-21020

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