An Innovative Design of Isoflux Scanning Digital Phased Array Based on Completely Shared Subarray Architecture for Geostationary Satellites
In this paper, we propose an innovative spaceborne isoflux scanning digital phased array (ISDPA) design with two-stage digital beamforming (DBF) for geostationary satellites. To achieve isoflux scanning, a novel technique is presented to obtain an isoflux beam for the ISDPA equivalent element using...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-09-01
|
| Series: | Electronics |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2079-9292/12/18/3850 |
| _version_ | 1797580444920709120 |
|---|---|
| author | Muren Cai Wentao Li Xiaowei Shi Qiaoshan Zhang Heng Liu Yan Li |
| author_facet | Muren Cai Wentao Li Xiaowei Shi Qiaoshan Zhang Heng Liu Yan Li |
| author_sort | Muren Cai |
| collection | DOAJ |
| description | In this paper, we propose an innovative spaceborne isoflux scanning digital phased array (ISDPA) design with two-stage digital beamforming (DBF) for geostationary satellites. To achieve isoflux scanning, a novel technique is presented to obtain an isoflux beam for the ISDPA equivalent element using a DBF completely shared subarray architecture and the differential evolution (DE) algorithm. By reutilizing the radiating elements of adjacent subarrays, the radiation aperture and element number are augmented, enhancing the degrees of optimization freedom. To validate the proposed design, a linear ISDPA with 16 DBF completely shared subarrays is optimized and analyzed using two sets of excitation coefficients in different DBF stages. The numerical results demonstrate that the proposed ISDPA can adaptively compensate for space loss variations during beam scanning for geostationary communications with low sidelobes better than −20 dB. |
| first_indexed | 2024-03-10T22:50:05Z |
| format | Article |
| id | doaj.art-37761138edba49d5a4aa47546e5d5769 |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-10T22:50:05Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-37761138edba49d5a4aa47546e5d57692023-11-19T10:22:14ZengMDPI AGElectronics2079-92922023-09-011218385010.3390/electronics12183850An Innovative Design of Isoflux Scanning Digital Phased Array Based on Completely Shared Subarray Architecture for Geostationary SatellitesMuren Cai0Wentao Li1Xiaowei Shi2Qiaoshan Zhang3Heng Liu4Yan Li5Department of Electronic Engineering, Xidian University, Xi’an 710071, ChinaDepartment of Electronic Engineering, Xidian University, Xi’an 710071, ChinaDepartment of Electronic Engineering, Xidian University, Xi’an 710071, ChinaChina Academy of Space Technology (Xi’an), Xi’an 710000, ChinaChina Academy of Space Technology (Xi’an), Xi’an 710000, ChinaChina Academy of Space Technology (Xi’an), Xi’an 710000, ChinaIn this paper, we propose an innovative spaceborne isoflux scanning digital phased array (ISDPA) design with two-stage digital beamforming (DBF) for geostationary satellites. To achieve isoflux scanning, a novel technique is presented to obtain an isoflux beam for the ISDPA equivalent element using a DBF completely shared subarray architecture and the differential evolution (DE) algorithm. By reutilizing the radiating elements of adjacent subarrays, the radiation aperture and element number are augmented, enhancing the degrees of optimization freedom. To validate the proposed design, a linear ISDPA with 16 DBF completely shared subarrays is optimized and analyzed using two sets of excitation coefficients in different DBF stages. The numerical results demonstrate that the proposed ISDPA can adaptively compensate for space loss variations during beam scanning for geostationary communications with low sidelobes better than −20 dB.https://www.mdpi.com/2079-9292/12/18/3850phased array antennaisoflux scanningshared subarraydigital beamformingspace lossgeostationary satellites |
| spellingShingle | Muren Cai Wentao Li Xiaowei Shi Qiaoshan Zhang Heng Liu Yan Li An Innovative Design of Isoflux Scanning Digital Phased Array Based on Completely Shared Subarray Architecture for Geostationary Satellites Electronics phased array antenna isoflux scanning shared subarray digital beamforming space loss geostationary satellites |
| title | An Innovative Design of Isoflux Scanning Digital Phased Array Based on Completely Shared Subarray Architecture for Geostationary Satellites |
| title_full | An Innovative Design of Isoflux Scanning Digital Phased Array Based on Completely Shared Subarray Architecture for Geostationary Satellites |
| title_fullStr | An Innovative Design of Isoflux Scanning Digital Phased Array Based on Completely Shared Subarray Architecture for Geostationary Satellites |
| title_full_unstemmed | An Innovative Design of Isoflux Scanning Digital Phased Array Based on Completely Shared Subarray Architecture for Geostationary Satellites |
| title_short | An Innovative Design of Isoflux Scanning Digital Phased Array Based on Completely Shared Subarray Architecture for Geostationary Satellites |
| title_sort | innovative design of isoflux scanning digital phased array based on completely shared subarray architecture for geostationary satellites |
| topic | phased array antenna isoflux scanning shared subarray digital beamforming space loss geostationary satellites |
| url | https://www.mdpi.com/2079-9292/12/18/3850 |
| work_keys_str_mv | AT murencai aninnovativedesignofisofluxscanningdigitalphasedarraybasedoncompletelysharedsubarrayarchitectureforgeostationarysatellites AT wentaoli aninnovativedesignofisofluxscanningdigitalphasedarraybasedoncompletelysharedsubarrayarchitectureforgeostationarysatellites AT xiaoweishi aninnovativedesignofisofluxscanningdigitalphasedarraybasedoncompletelysharedsubarrayarchitectureforgeostationarysatellites AT qiaoshanzhang aninnovativedesignofisofluxscanningdigitalphasedarraybasedoncompletelysharedsubarrayarchitectureforgeostationarysatellites AT hengliu aninnovativedesignofisofluxscanningdigitalphasedarraybasedoncompletelysharedsubarrayarchitectureforgeostationarysatellites AT yanli aninnovativedesignofisofluxscanningdigitalphasedarraybasedoncompletelysharedsubarrayarchitectureforgeostationarysatellites AT murencai innovativedesignofisofluxscanningdigitalphasedarraybasedoncompletelysharedsubarrayarchitectureforgeostationarysatellites AT wentaoli innovativedesignofisofluxscanningdigitalphasedarraybasedoncompletelysharedsubarrayarchitectureforgeostationarysatellites AT xiaoweishi innovativedesignofisofluxscanningdigitalphasedarraybasedoncompletelysharedsubarrayarchitectureforgeostationarysatellites AT qiaoshanzhang innovativedesignofisofluxscanningdigitalphasedarraybasedoncompletelysharedsubarrayarchitectureforgeostationarysatellites AT hengliu innovativedesignofisofluxscanningdigitalphasedarraybasedoncompletelysharedsubarrayarchitectureforgeostationarysatellites AT yanli innovativedesignofisofluxscanningdigitalphasedarraybasedoncompletelysharedsubarrayarchitectureforgeostationarysatellites |