Higher order multipoles in metamaterial homogenization
Journal article, Peer reviewed
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Original versionIEEE Transactions on Antennas and Propagation. 2018, 66 (11), 6403-6407. 10.1109/TAP.2018.2863742
The higher order multipoles above the electric quadrupole are commonly neglected in metamaterial homogenization. We show that they nevertheless can be significant when the second-order spatial dispersive effects, such as the magnetic response, are considered. In this respect, they can be equally important as the magnetization and quadrupole terms, and should not be automatically neglected.