Active metamaterial-inspired broad-bandwidth, efficient, electrically small antennas

Ning Zhu; Richard W. Ziolkowski

doi:10.1109/LAWP.2012.2182981

Active metamaterial-inspired broad-bandwidth, efficient, electrically small antennas

Ning Zhu, Richard W. Ziolkowski

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

79 Scopus citations

Abstract

Realistic designs of broad-bandwidth metamaterial-inspired electric and magnetic antennas are characterized numerically. By augmenting their narrow bandwidth counterparts with internal non-Foster elements, active metamaterial unit cells are introduced as near-field resonant parasitic (NFRP) elements. The driven and NFRP elements in each presented case are designed to achieve nearly complete matching of the entire system to a 50-Ω source without any matching network and to yield high radiation efficiencies over their FBW _10dB bandwidths that are more than 75 times their original values.

Original language	English (US)
Article number	6123189
Pages (from-to)	1582-1585
Number of pages	4
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	10
DOIs	https://doi.org/10.1109/LAWP.2012.2182981
State	Published - 2011
Externally published	Yes

Keywords

Antenna bandwidth
broadband antennas
electrically small antennas (ESAs)
metamaterial-inspired antennas
negative impedance converter (NIC)
radiation efficiency

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1109/LAWP.2012.2182981

Cite this

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title = "Active metamaterial-inspired broad-bandwidth, efficient, electrically small antennas",

abstract = "Realistic designs of broad-bandwidth metamaterial-inspired electric and magnetic antennas are characterized numerically. By augmenting their narrow bandwidth counterparts with internal non-Foster elements, active metamaterial unit cells are introduced as near-field resonant parasitic (NFRP) elements. The driven and NFRP elements in each presented case are designed to achieve nearly complete matching of the entire system to a 50-Ω source without any matching network and to yield high radiation efficiencies over their FBW 10dB bandwidths that are more than 75 times their original values.",

keywords = "Antenna bandwidth, broadband antennas, electrically small antennas (ESAs), metamaterial-inspired antennas, negative impedance converter (NIC), radiation efficiency",

author = "Ning Zhu and Ziolkowski, {Richard W.}",

note = "Funding Information: Manuscript received October 14, 2011; revised December 22, 2011; accepted January 02, 2012. Date of publication January 05, 2012; date of current version January 30, 2012. This work was supported in part by DARPA under Contract no. HR0011-05-C-0068 and the ONR under Contract no. H940030920902.",

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doi = "10.1109/LAWP.2012.2182981",

language = "English (US)",

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AU - Zhu, Ning

AU - Ziolkowski, Richard W.

N1 - Funding Information: Manuscript received October 14, 2011; revised December 22, 2011; accepted January 02, 2012. Date of publication January 05, 2012; date of current version January 30, 2012. This work was supported in part by DARPA under Contract no. HR0011-05-C-0068 and the ONR under Contract no. H940030920902.

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Y1 - 2011

N2 - Realistic designs of broad-bandwidth metamaterial-inspired electric and magnetic antennas are characterized numerically. By augmenting their narrow bandwidth counterparts with internal non-Foster elements, active metamaterial unit cells are introduced as near-field resonant parasitic (NFRP) elements. The driven and NFRP elements in each presented case are designed to achieve nearly complete matching of the entire system to a 50-Ω source without any matching network and to yield high radiation efficiencies over their FBW 10dB bandwidths that are more than 75 times their original values.

AB - Realistic designs of broad-bandwidth metamaterial-inspired electric and magnetic antennas are characterized numerically. By augmenting their narrow bandwidth counterparts with internal non-Foster elements, active metamaterial unit cells are introduced as near-field resonant parasitic (NFRP) elements. The driven and NFRP elements in each presented case are designed to achieve nearly complete matching of the entire system to a 50-Ω source without any matching network and to yield high radiation efficiencies over their FBW 10dB bandwidths that are more than 75 times their original values.

KW - Antenna bandwidth

KW - broadband antennas

KW - electrically small antennas (ESAs)

KW - metamaterial-inspired antennas

KW - negative impedance converter (NIC)

KW - radiation efficiency

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Active metamaterial-inspired broad-bandwidth, efficient, electrically small antennas

Abstract

Keywords

ASJC Scopus subject areas

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