{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,11]],"date-time":"2026-04-11T06:51:08Z","timestamp":1775890268616,"version":"3.50.1"},"reference-count":23,"publisher":"MDPI AG","issue":"10","license":[{"start":{"date-parts":[[2023,5,12]],"date-time":"2023-05-12T00:00:00Z","timestamp":1683849600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"the Natural Science Foundation of China Projects","award":["U20A20165"],"award-info":[{"award-number":["U20A20165"]}]},{"name":"the Natural Science Foundation of China Projects","award":["61721001"],"award-info":[{"award-number":["61721001"]}]},{"name":"the Natural Science Foundation of China Projects","award":["BP0719011"],"award-info":[{"award-number":["BP0719011"]}]},{"name":"111 Project of China","award":["U20A20165"],"award-info":[{"award-number":["U20A20165"]}]},{"name":"111 Project of China","award":["61721001"],"award-info":[{"award-number":["61721001"]}]},{"name":"111 Project of China","award":["BP0719011"],"award-info":[{"award-number":["BP0719011"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>In this article, a high-gain millimeter-wave transmitarray antenna (TAA) maintaining scanning ability is developed, integrating an array feed as the primary emitter. The work is achieved within a limited aperture area, avoiding the replacement or extension of the array. The addition of a set of defocused phases along the scanning direction to the phase distribution of the monofocal lens allows the converging energy to be dispersed into the scanning scope. The beam forming algorithm proposed in this article can determine the excitation coefficients of the array feed source, and is beneficial to improve the scanning capability in array-fed transmitarray antennas. A transmitarray based on the square waveguide element illuminated by an array feed is designed with a focal-to-diameter ratio (F\/D) of 0.6. A 1-D scan with a scope of \u22125\u00b0 to 5\u00b0 is realized through calculation. The measured results show that the transmitarray can achieve a high gain, 37.95 dBi at 160 GHz, although a maximum 2.2 dB error appears compared with the calculation in the operating band of 150\u2013170 GHz. The proposed transmitarray has been proven to generate scannable high-gain beams in the millimeter-wave band and is expected to demonstrate its potential in other applications.<\/jats:p>","DOI":"10.3390\/s23104709","type":"journal-article","created":{"date-parts":[[2023,5,12]],"date-time":"2023-05-12T09:56:18Z","timestamp":1683885378000},"page":"4709","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["High-Gain Millimeter-Wave Beam Scanning Transmitarray Antenna"],"prefix":"10.3390","volume":"23","author":[{"ORCID":"https:\/\/orcid.org\/0009-0002-7391-851X","authenticated-orcid":false,"given":"Hao-Zheng","family":"Yang","sequence":"first","affiliation":[{"name":"School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China"}]},{"given":"Shi-Wei","family":"Qu","sequence":"additional","affiliation":[{"name":"School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China"}]}],"member":"1968","published-online":{"date-parts":[[2023,5,12]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1992","DOI":"10.1109\/TAP.2020.3026905","article-title":"A compact beamsteering metasurface lens array antenna with low-cost phased array","volume":"69","author":"Xu","year":"2021","journal-title":"IEEE Trans. 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