# Lower Bounds to Quality Factor of Small Radiators through Quasistatic Scattering Modes

@inproceedings{Pascale2021LowerBT, title={Lower Bounds to Quality Factor of Small Radiators through Quasistatic Scattering Modes}, author={Mariano Pascale and Sander A. Mann and Dimitrios C. Tzarouchis and Giovanni Miano and Andrea Al{\'u} and Carlo Forestiere}, year={2021} }

The problem of finding the optimal current distribution supported by a small radiator yielding the minimum quality (Q) factor is a fundamental problem in electromagnetism. Q factor bounds constrain the maximum operational bandwidth of devices including antennas, metamaterials, and open optical resonators. In this manuscript, a representation of the optimal current distribution in terms of quasistatic scattering modes is introduced. Quasi-electrostatic and quasi-magnetostatic modes describe the… Expand

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