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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| Format: | Article |
| Language: | English |
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MDPI AG
2021-10-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/11/21/10025 |
| _version_ | 1797512878462337024 |
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| author | Daesung Park Jaehoon Choi |
| author_facet | Daesung Park Jaehoon Choi |
| author_sort | Daesung Park |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-03-10T06:07:27Z |
| format | Article |
| id | doaj.art-c6da79446e9243a48a3e1380ea6fece0 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T06:07:27Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-c6da79446e9243a48a3e1380ea6fece02023-11-22T20:26:38ZengMDPI AGApplied Sciences2076-34172021-10-0111211002510.3390/app112110025A Dual-Band Dual-Polarized Antenna with Improved Isolation Characteristics for Polarimetric SAR ApplicationsDaesung Park0Jaehoon Choi1Radar System 3rd Team, Hanwha Systems, Yongin 17121, KoreaDepartment of Electronic Engineering, Hanyang University, Seoul 04763, KoreaA 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.https://www.mdpi.com/2076-3417/11/21/10025synthetic aperture radar (SAR)dual-banddual-polarizationmetamaterial absorber |
| spellingShingle | Daesung Park Jaehoon Choi A Dual-Band Dual-Polarized Antenna with Improved Isolation Characteristics for Polarimetric SAR Applications Applied Sciences synthetic aperture radar (SAR) dual-band dual-polarization metamaterial absorber |
| title | 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_short | 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 |
| topic | synthetic aperture radar (SAR) dual-band dual-polarization metamaterial absorber |
| url | https://www.mdpi.com/2076-3417/11/21/10025 |
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