Low-Q Electrically Small Spherical Magnetic Dipole Antennas

Oleksiy S. Kim

doi:10.1109/TAP.2010.2048863

Low-Q Electrically Small Spherical Magnetic Dipole Antennas

Oleksiy S. Kim

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Abstract

Three novel electrically small antenna configurations radiating a TE10 spherical mode corresponding to a magnetic dipole are presented and investigated: multiarm spherical helix (MSH) antenna, spherical split ring resonator (S-SRR) antenna, and spherical split ring (SSR) antenna. All three antennas are self-resonant, with the input resistance tuned to 50 ohms by an excitation curved dipole/monopole. A prototype of the SSR antenna has been fabricated and measured, yielding results that are consistent with the numerical simulations. Radiation quality factors (Q) of these electrically small antennas (in all cases ka

Original language	English
Journal	I E E E Transactions on Antennas and Propagation
Volume	58
Issue number	7
Pages (from-to)	2210-2217
ISSN	0018-926X
DOIs	https://doi.org/10.1109/TAP.2010.2048863
Publication status	Published - 2010

Keywords

quality factor
electrically small antennas
split-ring resonator (SRR)
Chu limit
magnetic dipole

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KW - Chu limit

KW - magnetic dipole

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ER -

Low-Q Electrically Small Spherical Magnetic Dipole Antennas

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