Several perturbation formulas are available for the resonant frequency of an electromagnetic cavity subjected to shape and material perturbations. Each is based on a mathematical identity from vector calculus, a choice of trial fields, and the manner in which the boundary conditions are met. The limits of usefulness of a given perturbation formula depend on… (More)

Matrix Formulation of Slater’s Cavity Perturbation Theorem,

G. E. Dombrowski

Journal of Applied Physics,

1984

2 Excerpts

Perturbation Techniques in Mathematics, Engineering

R. Bellman

1966

1 Excerpt

and D

R. Couran

Hilbert, Methods of Mathematical Physics, Volume…

1953

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@article{Nelatury2014ACO,
title={A comparison of perturbation formulas for a square electromagnetic resonator},
author={Sudarshan Rao Nelatury and Charles F. Nelatury},
journal={IEEE Antennas and Propagation Magazine},
year={2014},
volume={56},
pages={130-142}
}