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 - Oct 22 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

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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",

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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.

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