A Novel C/X-Band Linear Polarized Conformal Shared Aperture Antenna Array for Spaceborne SAR Applications
In this work, a dual-band linear polarized C/X conformal shared aperture antenna (SAA) for spaceborne SAR applications is presented. The proposed single layer SAA is designed with a square-shaped patch in linear polarization and arranged as four elements (<inline-formula> <tex-math notation...
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| Format: | Article |
| Language: | English |
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IEEE
2023-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10250786/ |
| _version_ | 1797676661168144384 |
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| author | Bala Ankaiah Nunna Venkata Kishore Kothapudi |
| author_facet | Bala Ankaiah Nunna Venkata Kishore Kothapudi |
| author_sort | Bala Ankaiah Nunna |
| collection | DOAJ |
| description | In this work, a dual-band linear polarized C/X conformal shared aperture antenna (SAA) for spaceborne SAR applications is presented. The proposed single layer SAA is designed with a square-shaped patch in linear polarization and arranged as four elements (<inline-formula> <tex-math notation="LaTeX">$2\times 2$ </tex-math></inline-formula>) array with corporate feeding to allow for efficient signal transmission. The design of that operates at C-band (5.35 GHz) and X-band (9.65 GHz). Most spaceborne applications, such satellite radar and weather forecasting, employ the C-band antenna. On the other hand, X-band antennas are used for surveillance, reconnaissance, air traffic control, and weather monitoring. A prototype is built, and its s-parameters are tested to confirm the antenna. With the suggested design, we were able to obtain a bandwidth of 65 MHz for C-band and 354 MHz for X-band, as well as gains of 13.2 dBi for the C-band and 10.6 dBi for the X-band, and isolation of more than 40 dB. The total size of the SAA size is <inline-formula> <tex-math notation="LaTeX">$130\times 80\times0.8$ </tex-math></inline-formula> mm. According to this study, dual band antennas operating future SAR spacecraft on a same aperture is a practical solution to satisfy user demands. |
| first_indexed | 2024-03-11T22:34:16Z |
| format | Article |
| id | doaj.art-08c89507d9d9429c8c7a702b2a7ef28b |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-03-11T22:34:16Z |
| publishDate | 2023-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-08c89507d9d9429c8c7a702b2a7ef28b2023-09-22T23:00:40ZengIEEEIEEE Access2169-35362023-01-011110104510105410.1109/ACCESS.2023.331511710250786A Novel C/X-Band Linear Polarized Conformal Shared Aperture Antenna Array for Spaceborne SAR ApplicationsBala Ankaiah Nunna0https://orcid.org/0009-0003-3014-8700Venkata Kishore Kothapudi1https://orcid.org/0000-0002-6247-5461Department of Electronics and Communication Engineering, Center of Excellence Advanced RF Microwave and Wireless Communications, School of Electrical, Electronics and Communication Engineering, Vignan's Foundation for Science, Technology and Research (VFSTR), Vadlamudi, Guntur, Andhra Pradesh, IndiaDepartment of Electronics and Communication Engineering, Center of Excellence Advanced RF Microwave and Wireless Communications, School of Electrical, Electronics and Communication Engineering, Vignan's Foundation for Science, Technology and Research (VFSTR), Vadlamudi, Guntur, Andhra Pradesh, IndiaIn this work, a dual-band linear polarized C/X conformal shared aperture antenna (SAA) for spaceborne SAR applications is presented. The proposed single layer SAA is designed with a square-shaped patch in linear polarization and arranged as four elements (<inline-formula> <tex-math notation="LaTeX">$2\times 2$ </tex-math></inline-formula>) array with corporate feeding to allow for efficient signal transmission. The design of that operates at C-band (5.35 GHz) and X-band (9.65 GHz). Most spaceborne applications, such satellite radar and weather forecasting, employ the C-band antenna. On the other hand, X-band antennas are used for surveillance, reconnaissance, air traffic control, and weather monitoring. A prototype is built, and its s-parameters are tested to confirm the antenna. With the suggested design, we were able to obtain a bandwidth of 65 MHz for C-band and 354 MHz for X-band, as well as gains of 13.2 dBi for the C-band and 10.6 dBi for the X-band, and isolation of more than 40 dB. The total size of the SAA size is <inline-formula> <tex-math notation="LaTeX">$130\times 80\times0.8$ </tex-math></inline-formula> mm. According to this study, dual band antennas operating future SAR spacecraft on a same aperture is a practical solution to satisfy user demands.https://ieeexplore.ieee.org/document/10250786/Conformal antennashared aperture antennalinear polarizationcorporate feedspacebornesynthetic aperture radar |
| spellingShingle | Bala Ankaiah Nunna Venkata Kishore Kothapudi A Novel C/X-Band Linear Polarized Conformal Shared Aperture Antenna Array for Spaceborne SAR Applications IEEE Access Conformal antenna shared aperture antenna linear polarization corporate feed spaceborne synthetic aperture radar |
| title | A Novel C/X-Band Linear Polarized Conformal Shared Aperture Antenna Array for Spaceborne SAR Applications |
| title_full | A Novel C/X-Band Linear Polarized Conformal Shared Aperture Antenna Array for Spaceborne SAR Applications |
| title_fullStr | A Novel C/X-Band Linear Polarized Conformal Shared Aperture Antenna Array for Spaceborne SAR Applications |
| title_full_unstemmed | A Novel C/X-Band Linear Polarized Conformal Shared Aperture Antenna Array for Spaceborne SAR Applications |
| title_short | A Novel C/X-Band Linear Polarized Conformal Shared Aperture Antenna Array for Spaceborne SAR Applications |
| title_sort | novel c x band linear polarized conformal shared aperture antenna array for spaceborne sar applications |
| topic | Conformal antenna shared aperture antenna linear polarization corporate feed spaceborne synthetic aperture radar |
| url | https://ieeexplore.ieee.org/document/10250786/ |
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