Broad-Bandwidth, Electrically Small Antenna Augmented With an Internal Non-Foster Element

Ning Zhu; Richard W. Ziolkowski

doi:10.1109/LAWP.2012.2219572

Broad-Bandwidth, Electrically Small Antenna Augmented With an Internal Non-Foster Element

Ning Zhu, Richard W. Ziolkowski

Electrical and Computer Engineering

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

51 Scopus citations

Abstract

A broad-bandwidth, electrically small, near-field resonant parasitic (NFRP) dipole antenna has been designed, analyzed, and measured. Unlike conventional active external matching network approaches, a non-Foster component with a negative reactance slope was incorporated into the NFRP element of an Egyptian-axe dipole antenna to significantly increase its bandwidth. The measurement results showed approximately a 25.3 MHz 10 dB bandwidth around 300 MHz for the active system (ka = 0.49), which is 6.02 and 3.89 times greater than, respectively, the simulated and measured values of the original passive design.

Original language	English (US)
Article number	6305461
Pages (from-to)	1116-1120
Number of pages	5
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	11
DOIs	https://doi.org/10.1109/LAWP.2012.2219572
State	Published - 2012

Keywords

Broadband antennas
Chu-Thal limit
Electrically small antennas (ESAs)
Metamaterial-inspired antennas
Non-Foster elements

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1109/LAWP.2012.2219572

Cite this

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title = "Broad-Bandwidth, Electrically Small Antenna Augmented With an Internal Non-Foster Element",

abstract = "A broad-bandwidth, electrically small, near-field resonant parasitic (NFRP) dipole antenna has been designed, analyzed, and measured. Unlike conventional active external matching network approaches, a non-Foster component with a negative reactance slope was incorporated into the NFRP element of an Egyptian-axe dipole antenna to significantly increase its bandwidth. The measurement results showed approximately a 25.3 MHz 10 dB bandwidth around 300 MHz for the active system (ka = 0.49), which is 6.02 and 3.89 times greater than, respectively, the simulated and measured values of the original passive design.",

keywords = "Broadband antennas, Chu-Thal limit, Electrically small antennas (ESAs), Metamaterial-inspired antennas, Non-Foster elements",

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

note = "Funding Information: Manuscript received June 08, 2012; revised August 26, 2012; accepted September 14, 2012. Date of publication September 18, 2012; date of current version October 04, 2012. This work was supported in part by the NSF under Contract No. ECCS-1126572.",

year = "2012",

doi = "10.1109/LAWP.2012.2219572",

language = "English (US)",

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pages = "1116--1120",

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T1 - Broad-Bandwidth, Electrically Small Antenna Augmented With an Internal Non-Foster Element

AU - Zhu, Ning

AU - Ziolkowski, Richard W.

N1 - Funding Information: Manuscript received June 08, 2012; revised August 26, 2012; accepted September 14, 2012. Date of publication September 18, 2012; date of current version October 04, 2012. This work was supported in part by the NSF under Contract No. ECCS-1126572.

PY - 2012

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N2 - A broad-bandwidth, electrically small, near-field resonant parasitic (NFRP) dipole antenna has been designed, analyzed, and measured. Unlike conventional active external matching network approaches, a non-Foster component with a negative reactance slope was incorporated into the NFRP element of an Egyptian-axe dipole antenna to significantly increase its bandwidth. The measurement results showed approximately a 25.3 MHz 10 dB bandwidth around 300 MHz for the active system (ka = 0.49), which is 6.02 and 3.89 times greater than, respectively, the simulated and measured values of the original passive design.

AB - A broad-bandwidth, electrically small, near-field resonant parasitic (NFRP) dipole antenna has been designed, analyzed, and measured. Unlike conventional active external matching network approaches, a non-Foster component with a negative reactance slope was incorporated into the NFRP element of an Egyptian-axe dipole antenna to significantly increase its bandwidth. The measurement results showed approximately a 25.3 MHz 10 dB bandwidth around 300 MHz for the active system (ka = 0.49), which is 6.02 and 3.89 times greater than, respectively, the simulated and measured values of the original passive design.

KW - Broadband antennas

KW - Chu-Thal limit

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KW - Metamaterial-inspired antennas

KW - Non-Foster elements

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Broad-Bandwidth, Electrically Small Antenna Augmented With an Internal Non-Foster Element

Abstract

Keywords

ASJC Scopus subject areas

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