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Simple Reconfigurable Circularly Polarized Antenna at Three Bands
In this paper, a simple design for a triple-band circularly polarized (CP) antenna with the capability of switching its polarization between dual-sense CPs is presented. The proposed antenna is comprised of a monopole loop antenna as a primary radiator. By placing a parasitic loop around the primary...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6566272/ https://www.ncbi.nlm.nih.gov/pubmed/31137501 http://dx.doi.org/10.3390/s19102316 |
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author | Le, Tu Tuan Park, Han-Young Yun, Tae-Yeoul |
author_facet | Le, Tu Tuan Park, Han-Young Yun, Tae-Yeoul |
author_sort | Le, Tu Tuan |
collection | PubMed |
description | In this paper, a simple design for a triple-band circularly polarized (CP) antenna with the capability of switching its polarization between dual-sense CPs is presented. The proposed antenna is comprised of a monopole loop antenna as a primary radiator. By placing a parasitic loop around the primary radiator, an additional CP band is achieved. Reconfigurability of the polarization between right-hand CP (RHCP) and left-hand CP (LHCP) at three different frequencies of 2.5, 3.3, and 3.8 GHz was realized by controlling the ON/OFF states of two PIN diodes. For validation, the fabricated antenna yielded an impedance bandwidth of 52.6% (2.34–4.01 GHz), while the axial ratio bandwidths for both the RHCP and LHCP states were 3.5% (2.47–2.56 GHz), 6.6% (3.20–3.42 GHz), and 2.4% (3.74–3.83 GHz). The measured broadside gains within the axial ratio bandwidth were 1.2, 2.7, and 1.4 dBi, respectively. Compared to other reconfigurable multi-band CP antennas, the proposed design is the first work to achieve a reconfigurable polarization at three distinct bands at a low fabrication cost by using only two diodes. The proposed antenna is suitable for WLAN and WiMAX applications. |
format | Online Article Text |
id | pubmed-6566272 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-65662722019-06-17 Simple Reconfigurable Circularly Polarized Antenna at Three Bands Le, Tu Tuan Park, Han-Young Yun, Tae-Yeoul Sensors (Basel) Article In this paper, a simple design for a triple-band circularly polarized (CP) antenna with the capability of switching its polarization between dual-sense CPs is presented. The proposed antenna is comprised of a monopole loop antenna as a primary radiator. By placing a parasitic loop around the primary radiator, an additional CP band is achieved. Reconfigurability of the polarization between right-hand CP (RHCP) and left-hand CP (LHCP) at three different frequencies of 2.5, 3.3, and 3.8 GHz was realized by controlling the ON/OFF states of two PIN diodes. For validation, the fabricated antenna yielded an impedance bandwidth of 52.6% (2.34–4.01 GHz), while the axial ratio bandwidths for both the RHCP and LHCP states were 3.5% (2.47–2.56 GHz), 6.6% (3.20–3.42 GHz), and 2.4% (3.74–3.83 GHz). The measured broadside gains within the axial ratio bandwidth were 1.2, 2.7, and 1.4 dBi, respectively. Compared to other reconfigurable multi-band CP antennas, the proposed design is the first work to achieve a reconfigurable polarization at three distinct bands at a low fabrication cost by using only two diodes. The proposed antenna is suitable for WLAN and WiMAX applications. MDPI 2019-05-20 /pmc/articles/PMC6566272/ /pubmed/31137501 http://dx.doi.org/10.3390/s19102316 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Le, Tu Tuan Park, Han-Young Yun, Tae-Yeoul Simple Reconfigurable Circularly Polarized Antenna at Three Bands |
title | Simple Reconfigurable Circularly Polarized Antenna at Three Bands |
title_full | Simple Reconfigurable Circularly Polarized Antenna at Three Bands |
title_fullStr | Simple Reconfigurable Circularly Polarized Antenna at Three Bands |
title_full_unstemmed | Simple Reconfigurable Circularly Polarized Antenna at Three Bands |
title_short | Simple Reconfigurable Circularly Polarized Antenna at Three Bands |
title_sort | simple reconfigurable circularly polarized antenna at three bands |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6566272/ https://www.ncbi.nlm.nih.gov/pubmed/31137501 http://dx.doi.org/10.3390/s19102316 |
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