Electrically Small Magnetic Dipole Antennas with Magnetic Core

Oleksiy S. Kim, Olav Breinbjerg

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    Abstract

    This work extends the theory of a spherical magnetic dipole antenna with magnetic core by numerical results for practical antenna configurations that excite higher-order modes besides the main TE10 spherical mode. The multiarm spherical helix (MSH) and the spherical split ring (SSR) antennas are considered. It is shown that one should be particularly aware of the TM11 and TM20 modes, whose resonances spoil the Q in a range of permeability of the core predicted to be optimal by the single-mode theory. Practical ways of suppressing these higher-order modes are presented.
    Original languageEnglish
    Title of host publicationProceedings of the 4th European Conference on Antennas and Propagation
    PublisherIEEE
    Publication date2010
    Pages1-4
    ISBN (Print)978-1-4244-6431-9
    Publication statusPublished - 2010
    Event4th European Conference on Antennas and Propagation - Barcelona, Spain
    Duration: 12 Apr 201016 Apr 2010
    Conference number: 4
    http://www.eucap2010.org/

    Conference

    Conference4th European Conference on Antennas and Propagation
    Number4
    Country/TerritorySpain
    CityBarcelona
    Period12/04/201016/04/2010
    Internet address

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