A Dual-Band Dual-Polarized Antenna with Improved Isolation Characteristics for Polarimetric SAR Applications

A dual-band dual-polarized antenna with high isolation characteristics is proposed for polarimetric synthetic aperture radar (PolSAR) applications. The antenna consists of four dipole antennas and 2 × 2 patch antenna arrays operating at the P-band (450–730 MHz) and Ka-band (34–36 GHz), respectively....

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Autores principales:	Daesung Park, Jaehoon Choi
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	synthetic aperture radar (SAR) dual-band dual-polarization metamaterial absorber Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/c6da79446e9243a48a3e1380ea6fece0
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spelling	oai:doaj.org-article:c6da79446e9243a48a3e1380ea6fece02021-11-11T15:06:27ZA Dual-Band Dual-Polarized Antenna with Improved Isolation Characteristics for Polarimetric SAR Applications10.3390/app1121100252076-3417https://doaj.org/article/c6da79446e9243a48a3e1380ea6fece02021-10-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/21/10025https://doaj.org/toc/2076-3417A dual-band dual-polarized antenna with high isolation characteristics is proposed for polarimetric synthetic aperture radar (PolSAR) applications. The antenna consists of four dipole antennas and 2 × 2 patch antenna arrays operating at the P-band (450–730 MHz) and Ka-band (34–36 GHz), respectively. The dipole antennas and the patch antenna arrays need dual-linear polarization characteristics to acquire PolSAR data. Improvements in the isolation characteristics at the P-band are achieved by inserting a metamaterial absorber with a fractal geometry between the transmitting (Tx) and receiving (Rx) dipole antennas. Without the absorber, the simulated isolation characteristics between the Tx and Rx antennas are lower than 19.2 dB over the target band. On the other hand, with the absorbers, the simulated isolation characteristics are higher than 23.44 dB over the target band, and remarkable improvement is achieved around the resonance frequency of the absorber. The measured results are in good agreement with the simulated ones, showing that the proposed antenna can be a good candidate for PolSAR applications.Daesung ParkJaehoon ChoiMDPI AGarticlesynthetic aperture radar (SAR)dual-banddual-polarizationmetamaterial absorberTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10025, p 10025 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	synthetic aperture radar (SAR) dual-band dual-polarization metamaterial absorber Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	synthetic aperture radar (SAR) dual-band dual-polarization metamaterial absorber Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Daesung Park Jaehoon Choi A Dual-Band Dual-Polarized Antenna with Improved Isolation Characteristics for Polarimetric SAR Applications
description	A dual-band dual-polarized antenna with high isolation characteristics is proposed for polarimetric synthetic aperture radar (PolSAR) applications. The antenna consists of four dipole antennas and 2 × 2 patch antenna arrays operating at the P-band (450–730 MHz) and Ka-band (34–36 GHz), respectively. The dipole antennas and the patch antenna arrays need dual-linear polarization characteristics to acquire PolSAR data. Improvements in the isolation characteristics at the P-band are achieved by inserting a metamaterial absorber with a fractal geometry between the transmitting (Tx) and receiving (Rx) dipole antennas. Without the absorber, the simulated isolation characteristics between the Tx and Rx antennas are lower than 19.2 dB over the target band. On the other hand, with the absorbers, the simulated isolation characteristics are higher than 23.44 dB over the target band, and remarkable improvement is achieved around the resonance frequency of the absorber. The measured results are in good agreement with the simulated ones, showing that the proposed antenna can be a good candidate for PolSAR applications.
format	article
author	Daesung Park Jaehoon Choi
author_facet	Daesung Park Jaehoon Choi
author_sort	Daesung Park
title	A Dual-Band Dual-Polarized Antenna with Improved Isolation Characteristics for Polarimetric SAR Applications
title_short	A Dual-Band Dual-Polarized Antenna with Improved Isolation Characteristics for Polarimetric SAR Applications
title_full	A Dual-Band Dual-Polarized Antenna with Improved Isolation Characteristics for Polarimetric SAR Applications
title_fullStr	A Dual-Band Dual-Polarized Antenna with Improved Isolation Characteristics for Polarimetric SAR Applications
title_full_unstemmed	A Dual-Band Dual-Polarized Antenna with Improved Isolation Characteristics for Polarimetric SAR Applications
title_sort	dual-band dual-polarized antenna with improved isolation characteristics for polarimetric sar applications
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/c6da79446e9243a48a3e1380ea6fece0
work_keys_str_mv	AT daesungpark adualbanddualpolarizedantennawithimprovedisolationcharacteristicsforpolarimetricsarapplications AT jaehoonchoi adualbanddualpolarizedantennawithimprovedisolationcharacteristicsforpolarimetricsarapplications AT daesungpark dualbanddualpolarizedantennawithimprovedisolationcharacteristicsforpolarimetricsarapplications AT jaehoonchoi dualbanddualpolarizedantennawithimprovedisolationcharacteristicsforpolarimetricsarapplications
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A Dual-Band Dual-Polarized Antenna with Improved Isolation Characteristics for Polarimetric SAR Applications

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