Demonstration of impedance matching using a mu-negative (MNG) metamaterial

R. B. Greegor; C. G. Parazzoli; J. A. Nielsen; M. H. Tanielian; D. C. Vier; S. Schultz; Christopher L. Holloway; Richard W. Ziolkowski

doi:10.1109/LAWP.2008.2011570

Demonstration of impedance matching using a mu-negative (MNG) metamaterial

R. B. Greegor, C. G. Parazzoli, J. A. Nielsen, M. H. Tanielian, D. C. Vier, S. Schultz, Christopher L. Holloway, Richard W. Ziolkowski

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

A mu-negative (MNG) metamaterial hemisphere was used to demonstrate impedance matching for a magnetic loop. The metamaterial was comprised of copper spirals deposited on an alumina substrate. The spirals, hemisphere, and magnetic loop were designed to operate at ∼450 MHz. The effect of the metamaterial hemisphere was to improve the match of the electrically small loop antenna to the power source impedance increasing the overall radiated power. Results show a 17-dB increase in total radiated power relative to the bare loop. This was lower than anticipated due to losses in the MNG hemisphere.

Original language	English (US)
Article number	4729607
Pages (from-to)	92-95
Number of pages	4
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	8
DOIs	https://doi.org/10.1109/LAWP.2008.2011570
State	Published - 2009

Keywords

Antenna
Electrically small
Magnetic loop
Metamaterial

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1109/LAWP.2008.2011570

Cite this

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title = "Demonstration of impedance matching using a mu-negative (MNG) metamaterial",

abstract = "A mu-negative (MNG) metamaterial hemisphere was used to demonstrate impedance matching for a magnetic loop. The metamaterial was comprised of copper spirals deposited on an alumina substrate. The spirals, hemisphere, and magnetic loop were designed to operate at ∼450 MHz. The effect of the metamaterial hemisphere was to improve the match of the electrically small loop antenna to the power source impedance increasing the overall radiated power. Results show a 17-dB increase in total radiated power relative to the bare loop. This was lower than anticipated due to losses in the MNG hemisphere.",

keywords = "Antenna, Electrically small, Magnetic loop, Metamaterial",

author = "Greegor, {R. B.} and Parazzoli, {C. G.} and Nielsen, {J. A.} and Tanielian, {M. H.} and Vier, {D. C.} and S. Schultz and Holloway, {Christopher L.} and Ziolkowski, {Richard W.}",

note = "Funding Information: Manuscript received October 23, 2008. First published December 22, 2008; current version published April 17, 2009. This work was supported by DARPA Contract HR0011-05-C-0068.",

year = "2009",

doi = "10.1109/LAWP.2008.2011570",

language = "English (US)",

volume = "8",

pages = "92--95",

journal = "IEEE Antennas and Wireless Propagation Letters",

issn = "1536-1225",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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T1 - Demonstration of impedance matching using a mu-negative (MNG) metamaterial

AU - Greegor, R. B.

AU - Parazzoli, C. G.

AU - Nielsen, J. A.

AU - Tanielian, M. H.

AU - Vier, D. C.

AU - Schultz, S.

AU - Holloway, Christopher L.

AU - Ziolkowski, Richard W.

N1 - Funding Information: Manuscript received October 23, 2008. First published December 22, 2008; current version published April 17, 2009. This work was supported by DARPA Contract HR0011-05-C-0068.

PY - 2009

Y1 - 2009

N2 - A mu-negative (MNG) metamaterial hemisphere was used to demonstrate impedance matching for a magnetic loop. The metamaterial was comprised of copper spirals deposited on an alumina substrate. The spirals, hemisphere, and magnetic loop were designed to operate at ∼450 MHz. The effect of the metamaterial hemisphere was to improve the match of the electrically small loop antenna to the power source impedance increasing the overall radiated power. Results show a 17-dB increase in total radiated power relative to the bare loop. This was lower than anticipated due to losses in the MNG hemisphere.

AB - A mu-negative (MNG) metamaterial hemisphere was used to demonstrate impedance matching for a magnetic loop. The metamaterial was comprised of copper spirals deposited on an alumina substrate. The spirals, hemisphere, and magnetic loop were designed to operate at ∼450 MHz. The effect of the metamaterial hemisphere was to improve the match of the electrically small loop antenna to the power source impedance increasing the overall radiated power. Results show a 17-dB increase in total radiated power relative to the bare loop. This was lower than anticipated due to losses in the MNG hemisphere.

KW - Antenna

KW - Electrically small

KW - Magnetic loop

KW - Metamaterial

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JO - IEEE Antennas and Wireless Propagation Letters

JF - IEEE Antennas and Wireless Propagation Letters

M1 - 4729607

ER -

Demonstration of impedance matching using a mu-negative (MNG) metamaterial

Abstract

Keywords

ASJC Scopus subject areas

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