{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,12]],"date-time":"2026-03-12T15:40:18Z","timestamp":1773330018352,"version":"3.50.1"},"reference-count":31,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2023,6,7]],"date-time":"2023-06-07T00:00:00Z","timestamp":1686096000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Guangdong Provincial Laboratory of Southern Marine Science and Engineering (Zhuhai)","award":["SML2021SP407"],"award-info":[{"award-number":["SML2021SP407"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>The utilization of efficient digital self-interference cancellation technology enables the simultaneous transmit and receive (STAR) phased array system to meet most application requirements through STAR capabilities. However, the development of application scenario requirements makes array configuration technology for STAR phased arrays increasingly important. Thus, this paper proposes a sparse shared aperture STAR reconfigurable phased array design based on beam constraints which are achieved by a genetic algorithm. Firstly, a design scheme for transmit and receive arrays with symmetrical shared apertures is adopted to improve the aperture efficiency of both transmit and receive arrays. Then, on the basis of shared aperture, sparse array design is introduced to further reduce system complexity and hardware costs. Finally, the shape of the transmit and receive arrays is determined by constraining the side lobe level (SLL), main lobe gain, and beam width. The simulated results indicate that the SLL of the transmit and receive patterns under beam-constrained design have been reduced by 4.1 dBi and 7.1 dBi, respectively. The cost of SLL improvement is a reduction in transmit gain, receive gain, and EII of 1.9 dBi, 2.1 dBi, and 3.9 dB, respectively. When the sparsity ratio is greater than 0.78, the SLL suppression effect is also significant, and the attenuation of EII, transmit, and receive gains do not exceed 3 dB and 2 dB, respectively. Overall, the results demonstrate the effectiveness of a sparse shared aperture design based on beam constraints in producing high gain, low SLL, and low-cost transmit and receive arrays.<\/jats:p>","DOI":"10.3390\/s23125391","type":"journal-article","created":{"date-parts":[[2023,6,8]],"date-time":"2023-06-08T02:02:28Z","timestamp":1686189748000},"page":"5391","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["A Sparse Shared Aperture Design for Simultaneous Transmit and Receive Arrays with Beam Constraints"],"prefix":"10.3390","volume":"23","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3577-8555","authenticated-orcid":false,"given":"Dujuan","family":"Hu","sequence":"first","affiliation":[{"name":"School of Systems Science and Engineering, Sun Yat-Sen University, Guangzhou 510006, China"},{"name":"School of Electronics and Communication Engineering, Sun Yat-Sen University, Shenzhen 528406, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xizhang","family":"Wei","sequence":"additional","affiliation":[{"name":"School of Electronics and Communication Engineering, Sun Yat-Sen University, Shenzhen 528406, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mingcong","family":"Xie","sequence":"additional","affiliation":[{"name":"School of Electronics and Communication Engineering, Sun Yat-Sen University, Shenzhen 528406, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yanqun","family":"Tang","sequence":"additional","affiliation":[{"name":"School of Electronics and Communication Engineering, Sun Yat-Sen University, Shenzhen 528406, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,6,7]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Bliss, D.W., Parker, P.A., and Margetts, A.R. 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