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Perturbation Formula for the Internal Resonances of a Dielectric Object Embedded in a Low-Impedance Medium
[report]
1996
unpublished
A simple perturbation formula is presented for characterizing the natural frequencies of a dielectric object embedded in an isotropic, homogeneous medium of low wave impedance. For this situation the natural frequencies of the object can be obtained from the interior "cavity" resonances of the same object when immersed in a perfect conductor. Since the cavity modes are assumed to be known or easily measurable for a given body of interest, the presented formulation allows determination of an
doi:10.21236/ada345494
fatcat:xxcn56uw5fhobcomddbzqcfm3y