Resonant frequencies of a cavity with a cylindrical hole in a wall of infinite thickness
Abstract
A variational method is presented for evaluating the electric and magnetic polarizabilities of a cylindrical hole of small radius a in a wall of infinite thickness. The polarizabilities are obtained, thus enabling the determination of the resonant frequency shifts for a cavity with the small hole.
 Publication:

Electronics Letters
 Pub Date:
 July 1978
 DOI:
 10.1049/el:19780298
 Bibcode:
 1978ElL....14..445S
 Keywords:

 Cavity Resonators;
 Frequency Shift;
 Polarization Characteristics;
 Resonant Frequencies;
 Bessel Functions;
 Calculus Of Variations;
 Dielectric Polarization;
 Integral Equations;
 Electronics and Electrical Engineering