Efficient electrically small antenna facilitated by a near-field resonant parasitic

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

An electrically small electric-based metamaterial-inspired antenna system that is designed for narrow bandwidth operation near 300 MHz is presented. It consists of a lumped element-based resonant parasitic element that is introduced into the very near field of a coax-fed monopole. It is demonstrated that several idealized lossless versions are capable of achieving a near perfect impedance match to the source and, thus, have overall efficiencies near 100% without an external matching circuit. It is established that the entire system makes effective use of the radiansphere volume it occupies. The overall efficiencies are shown to remain high even when conductor losses are introduced. Potential frequency agility is also demonstrated.

Original languageEnglish (US)
Article number2000558
Pages (from-to)581-584
Number of pages4
JournalIEEE Antennas and Wireless Propagation Letters
Volume7
DOIs
StatePublished - 2008

Fingerprint

Metamaterial antennas
Frequency agility
Antennas
Bandwidth
Networks (circuits)

Keywords

  • Antenna efficiency
  • Antenna theory
  • Electrically small antennas
  • Metamaterlals
  • Parasitic antennas
  • Q factor

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

@article{b2a89ce7145d429bbe6eed02ec53a1a9,
title = "Efficient electrically small antenna facilitated by a near-field resonant parasitic",
abstract = "An electrically small electric-based metamaterial-inspired antenna system that is designed for narrow bandwidth operation near 300 MHz is presented. It consists of a lumped element-based resonant parasitic element that is introduced into the very near field of a coax-fed monopole. It is demonstrated that several idealized lossless versions are capable of achieving a near perfect impedance match to the source and, thus, have overall efficiencies near 100{\%} without an external matching circuit. It is established that the entire system makes effective use of the radiansphere volume it occupies. The overall efficiencies are shown to remain high even when conductor losses are introduced. Potential frequency agility is also demonstrated.",
keywords = "Antenna efficiency, Antenna theory, Electrically small antennas, Metamaterlals, Parasitic antennas, Q factor",
author = "Ziolkowski, {Richard W}",
year = "2008",
doi = "10.1109/LAWP.2008.2000558",
language = "English (US)",
volume = "7",
pages = "581--584",
journal = "IEEE Antennas and Wireless Propagation Letters",
issn = "1536-1225",
publisher = "Institute of Electrical and Electronics Engineers Inc.",

}

TY - JOUR

T1 - Efficient electrically small antenna facilitated by a near-field resonant parasitic

AU - Ziolkowski, Richard W

PY - 2008

Y1 - 2008

N2 - An electrically small electric-based metamaterial-inspired antenna system that is designed for narrow bandwidth operation near 300 MHz is presented. It consists of a lumped element-based resonant parasitic element that is introduced into the very near field of a coax-fed monopole. It is demonstrated that several idealized lossless versions are capable of achieving a near perfect impedance match to the source and, thus, have overall efficiencies near 100% without an external matching circuit. It is established that the entire system makes effective use of the radiansphere volume it occupies. The overall efficiencies are shown to remain high even when conductor losses are introduced. Potential frequency agility is also demonstrated.

AB - An electrically small electric-based metamaterial-inspired antenna system that is designed for narrow bandwidth operation near 300 MHz is presented. It consists of a lumped element-based resonant parasitic element that is introduced into the very near field of a coax-fed monopole. It is demonstrated that several idealized lossless versions are capable of achieving a near perfect impedance match to the source and, thus, have overall efficiencies near 100% without an external matching circuit. It is established that the entire system makes effective use of the radiansphere volume it occupies. The overall efficiencies are shown to remain high even when conductor losses are introduced. Potential frequency agility is also demonstrated.

KW - Antenna efficiency

KW - Antenna theory

KW - Electrically small antennas

KW - Metamaterlals

KW - Parasitic antennas

KW - Q factor

UR - http://www.scopus.com/inward/record.url?scp=77958016765&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77958016765&partnerID=8YFLogxK

U2 - 10.1109/LAWP.2008.2000558

DO - 10.1109/LAWP.2008.2000558

M3 - Article

VL - 7

SP - 581

EP - 584

JO - IEEE Antennas and Wireless Propagation Letters

JF - IEEE Antennas and Wireless Propagation Letters

SN - 1536-1225

M1 - 2000558

ER -