Electric Dipole Antennas With Magnetic-Coated PEC Cores: Reaching the Chu Lower Bound on Q

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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Electric Dipole Antennas With Magnetic-Coated PEC Cores: Reaching the Chu Lower Bound on Q. / Kim, Oleksiy S.

In: I E E E Transactions on Antennas and Propagation, Vol. 60, No. 3, 2012, p. 1616-1619.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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Kim, Oleksiy S. / Electric Dipole Antennas With Magnetic-Coated PEC Cores: Reaching the Chu Lower Bound on Q.

In: I E E E Transactions on Antennas and Propagation, Vol. 60, No. 3, 2012, p. 1616-1619.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

Bibtex

@article{2b2b42e4f64844259a40f99ace8998a2,
title = "Electric Dipole Antennas With Magnetic-Coated PEC Cores: Reaching the Chu Lower Bound on Q",
publisher = "I E E E",
author = "Kim, {Oleksiy S.}",
year = "2012",
doi = "10.1109/TAP.2011.2180331",
volume = "60",
number = "3",
pages = "1616--1619",
journal = "I E E E Transactions on Antennas and Propagation",
issn = "0018-926X",

}

RIS

TY - JOUR

T1 - Electric Dipole Antennas With Magnetic-Coated PEC Cores: Reaching the Chu Lower Bound on Q

A1 - Kim,Oleksiy S.

AU - Kim,Oleksiy S.

PB - I E E E

PY - 2012

Y1 - 2012

N2 - The radiation properties of spherical electric dipole antennas with electric current excitation and material-coated perfectly electrically conducting (PEC) cores are investigated analytically using vector spherical wave functions. Closed-form expressions for electric and magnetic stored energy as well as the radiation quality factor $Q$ are derived. Using these, it is shown that properly selected magnetic coating and radius of the PEC core vastly reduce the internal stored energy, and thus make the $Q$ of an electric dipole antenna approach the Chu lower bound.

AB - The radiation properties of spherical electric dipole antennas with electric current excitation and material-coated perfectly electrically conducting (PEC) cores are investigated analytically using vector spherical wave functions. Closed-form expressions for electric and magnetic stored energy as well as the radiation quality factor $Q$ are derived. Using these, it is shown that properly selected magnetic coating and radius of the PEC core vastly reduce the internal stored energy, and thus make the $Q$ of an electric dipole antenna approach the Chu lower bound.

U2 - 10.1109/TAP.2011.2180331

DO - 10.1109/TAP.2011.2180331

JO - I E E E Transactions on Antennas and Propagation

JF - I E E E Transactions on Antennas and Propagation

SN - 0018-926X

IS - 3

VL - 60

SP - 1616

EP - 1619

ER -