Beampattern Synthesis and Optimization for Frequency Diverse Arc Array Based on the Virtual Element
With its special, arch-shaped array structure, a frequency diverse arc array (FDAA) can perform beam scanning in 360 degrees in azimuth and in arbitrary ranges by selectively activating array elements in different positions, utilizing array element phase compensation, and adopting a frequency offset...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-05-01
|
| Series: | Electronics |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2079-9292/12/10/2231 |
| _version_ | 1797600309788278784 |
|---|---|
| author | Wei Xu Zhuo Deng Pingping Huang Weixian Tan Zhiqi Gao |
| author_facet | Wei Xu Zhuo Deng Pingping Huang Weixian Tan Zhiqi Gao |
| author_sort | Wei Xu |
| collection | DOAJ |
| description | With its special, arch-shaped array structure, a frequency diverse arc array (FDAA) can perform beam scanning in 360 degrees in azimuth and in arbitrary ranges by selectively activating array elements in different positions, utilizing array element phase compensation, and adopting a frequency offset design. In this paper, a beampattern synthesis and optimization method for FDDA using the virtual array element based on the geometric configuration of FDDA is proposed. First, the position of the virtual array element is determined by the direction of the target, and then activated array elements are selected. Afterwards, the frequency offset of each array element is set up on the equiphase surface to obtain the dot-shaped beampattern. Finally, amplitude weighting is introduced to suppress the increased sidelobe level of the dot-shaped beampattern, which is caused by inverse density weighting of the arch-shaped array structure. Simulation results validate the proposed method for beampattern synthesis and optimization in FDAA. |
| first_indexed | 2024-03-11T03:46:40Z |
| format | Article |
| id | doaj.art-6043d4db8ef6426bb3c2f24b92233f19 |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-11T03:46:40Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-6043d4db8ef6426bb3c2f24b92233f192023-11-18T01:09:33ZengMDPI AGElectronics2079-92922023-05-011210223110.3390/electronics12102231Beampattern Synthesis and Optimization for Frequency Diverse Arc Array Based on the Virtual ElementWei Xu0Zhuo Deng1Pingping Huang2Weixian Tan3Zhiqi Gao4College of Information Engineering, Inner Mongolia University of Technology, Hohhot 010051, ChinaCollege of Information Engineering, Inner Mongolia University of Technology, Hohhot 010051, ChinaCollege of Information Engineering, Inner Mongolia University of Technology, Hohhot 010051, ChinaCollege of Information Engineering, Inner Mongolia University of Technology, Hohhot 010051, ChinaCollege of Information Engineering, Inner Mongolia University of Technology, Hohhot 010051, ChinaWith its special, arch-shaped array structure, a frequency diverse arc array (FDAA) can perform beam scanning in 360 degrees in azimuth and in arbitrary ranges by selectively activating array elements in different positions, utilizing array element phase compensation, and adopting a frequency offset design. In this paper, a beampattern synthesis and optimization method for FDDA using the virtual array element based on the geometric configuration of FDDA is proposed. First, the position of the virtual array element is determined by the direction of the target, and then activated array elements are selected. Afterwards, the frequency offset of each array element is set up on the equiphase surface to obtain the dot-shaped beampattern. Finally, amplitude weighting is introduced to suppress the increased sidelobe level of the dot-shaped beampattern, which is caused by inverse density weighting of the arch-shaped array structure. Simulation results validate the proposed method for beampattern synthesis and optimization in FDAA.https://www.mdpi.com/2079-9292/12/10/2231frequency diverse arc array (FDAA)virtual array elementbeampattern synthesissidelobe suppression |
| spellingShingle | Wei Xu Zhuo Deng Pingping Huang Weixian Tan Zhiqi Gao Beampattern Synthesis and Optimization for Frequency Diverse Arc Array Based on the Virtual Element Electronics frequency diverse arc array (FDAA) virtual array element beampattern synthesis sidelobe suppression |
| title | Beampattern Synthesis and Optimization for Frequency Diverse Arc Array Based on the Virtual Element |
| title_full | Beampattern Synthesis and Optimization for Frequency Diverse Arc Array Based on the Virtual Element |
| title_fullStr | Beampattern Synthesis and Optimization for Frequency Diverse Arc Array Based on the Virtual Element |
| title_full_unstemmed | Beampattern Synthesis and Optimization for Frequency Diverse Arc Array Based on the Virtual Element |
| title_short | Beampattern Synthesis and Optimization for Frequency Diverse Arc Array Based on the Virtual Element |
| title_sort | beampattern synthesis and optimization for frequency diverse arc array based on the virtual element |
| topic | frequency diverse arc array (FDAA) virtual array element beampattern synthesis sidelobe suppression |
| url | https://www.mdpi.com/2079-9292/12/10/2231 |
| work_keys_str_mv | AT weixu beampatternsynthesisandoptimizationforfrequencydiversearcarraybasedonthevirtualelement AT zhuodeng beampatternsynthesisandoptimizationforfrequencydiversearcarraybasedonthevirtualelement AT pingpinghuang beampatternsynthesisandoptimizationforfrequencydiversearcarraybasedonthevirtualelement AT weixiantan beampatternsynthesisandoptimizationforfrequencydiversearcarraybasedonthevirtualelement AT zhiqigao beampatternsynthesisandoptimizationforfrequencydiversearcarraybasedonthevirtualelement |