Broadband Electrically Small Circularly Polarized Directive Antenna
A broadband electrically small antenna with directive circularly polarized radiation is presented. It is composed of a compact single-feed crossed dipole driver, which is backed by a near-field resonant parasitic (NFRP) reflector to achieve the directive radiation pattern. The NFRP reflector is desi...
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doaj-ccd4d8b074274b71aa8b39ef4d0516fc2021-03-29T20:14:46ZengIEEEIEEE Access2169-35362017-01-015146571466310.1109/ACCESS.2017.27302367987698Broadband Electrically Small Circularly Polarized Directive AntennaSon Xuat Ta0Ikmo Park1https://orcid.org/0000-0002-0051-8614Richard W. Ziolkowski2Division of Computational Physics, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City, VietnamDepartment of Electrical and Computer Engineering, Ajou University, Suwon, South KoreaGlobal Big Data Technologies Centre, University of Technology Sydney, Ultimo, NSW, AustraliaA broadband electrically small antenna with directive circularly polarized radiation is presented. It is composed of a compact single-feed crossed dipole driver, which is backed by a near-field resonant parasitic (NFRP) reflector to achieve the directive radiation pattern. The NFRP reflector is designed to generate extra resonances and minimum axial ratio (AR) points in the antenna system. These features are combined with those resulting from the driver to broaden the operational bandwidth. The proposed antenna was fabricated and measured. The antenna prototype, with a low profile (0.066 λ<sub>o</sub> at 1.45 GHz) and an electrically small size (ka = 0.71 at 1.45 GHz), has a measured |S11| <; -10 dB bandwidth of 25.66% (1.362-1.763 GHz) and a 3-dB AR bandwidth of 10.56% (1.390-1.545 GHz). Additionally, the measurements resulted in a broadside gain of 2.31 ± 0.4 dBic and an average radiation efficiency of 80% within the operational bandwidth.https://ieeexplore.ieee.org/document/7987698/Broadbandcircular polarizationcrossed dipoledirective radiationnear-field resonant parasitic reflectorsmall antenna |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Son Xuat Ta Ikmo Park Richard W. Ziolkowski |
spellingShingle |
Son Xuat Ta Ikmo Park Richard W. Ziolkowski Broadband Electrically Small Circularly Polarized Directive Antenna IEEE Access Broadband circular polarization crossed dipole directive radiation near-field resonant parasitic reflector small antenna |
author_facet |
Son Xuat Ta Ikmo Park Richard W. Ziolkowski |
author_sort |
Son Xuat Ta |
title |
Broadband Electrically Small Circularly Polarized Directive Antenna |
title_short |
Broadband Electrically Small Circularly Polarized Directive Antenna |
title_full |
Broadband Electrically Small Circularly Polarized Directive Antenna |
title_fullStr |
Broadband Electrically Small Circularly Polarized Directive Antenna |
title_full_unstemmed |
Broadband Electrically Small Circularly Polarized Directive Antenna |
title_sort |
broadband electrically small circularly polarized directive antenna |
publisher |
IEEE |
series |
IEEE Access |
issn |
2169-3536 |
publishDate |
2017-01-01 |
description |
A broadband electrically small antenna with directive circularly polarized radiation is presented. It is composed of a compact single-feed crossed dipole driver, which is backed by a near-field resonant parasitic (NFRP) reflector to achieve the directive radiation pattern. The NFRP reflector is designed to generate extra resonances and minimum axial ratio (AR) points in the antenna system. These features are combined with those resulting from the driver to broaden the operational bandwidth. The proposed antenna was fabricated and measured. The antenna prototype, with a low profile (0.066 λ<sub>o</sub> at 1.45 GHz) and an electrically small size (ka = 0.71 at 1.45 GHz), has a measured |S11| <; -10 dB bandwidth of 25.66% (1.362-1.763 GHz) and a 3-dB AR bandwidth of 10.56% (1.390-1.545 GHz). Additionally, the measurements resulted in a broadside gain of 2.31 ± 0.4 dBic and an average radiation efficiency of 80% within the operational bandwidth. |
topic |
Broadband circular polarization crossed dipole directive radiation near-field resonant parasitic reflector small antenna |
url |
https://ieeexplore.ieee.org/document/7987698/ |
work_keys_str_mv |
AT sonxuatta broadbandelectricallysmallcircularlypolarizeddirectiveantenna AT ikmopark broadbandelectricallysmallcircularlypolarizeddirectiveantenna AT richardwziolkowski broadbandelectricallysmallcircularlypolarizeddirectiveantenna |
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