{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T01:37:46Z","timestamp":1760146666101,"version":"build-2065373602"},"reference-count":33,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2024,11,26]],"date-time":"2024-11-26T00:00:00Z","timestamp":1732579200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Key Research and Development Program of Shaanxi","award":["2024GX-YBXM-049","2024GH-ZDXM-11"],"award-info":[{"award-number":["2024GX-YBXM-049","2024GH-ZDXM-11"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Micromachines"],"abstract":"<jats:p>A new type of fully polarimetric retrodirective array (RDA) using a PON-type structure is proposed in this paper. The fully polarimetric property is the result of the proposed phase conjugation circuits, which perform phase conjugation processing on the x, y, and z polarization electric field components of the incident wave when combined with a tri-polarized antenna array. It enables the retrodirective array to receive and retransmit an arbitrary polarized incident wave. The measured results of the monostatic radar cross-section (RCS) show that the \u22125 dB beam width of the array was greater than 95\u00b0 at 9.6 GHz for different polarized incident waves. Furthermore, the proposed RDA has better retrodirectivity performance on arbitrary polarized incident waves when using a wide-beam antenna, and if we further incorporate modulation and demodulation into the circuits, it has the potential to be applied to the wireless communications field.<\/jats:p>","DOI":"10.3390\/mi15121418","type":"journal-article","created":{"date-parts":[[2024,11,26]],"date-time":"2024-11-26T07:40:32Z","timestamp":1732606832000},"page":"1418","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["A Wide-Angle and PON Fully Polarimetric Retrodirective Array at the X Band"],"prefix":"10.3390","volume":"15","author":[{"given":"Shuangdi","family":"Zhao","sequence":"first","affiliation":[{"name":"Key Laboratory of Antennas and Microwave Technology, Xidian University, Xi\u2019an 710071, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lei","family":"Chen","sequence":"additional","affiliation":[{"name":"Key Laboratory of Antennas and Microwave Technology, Xidian University, Xi\u2019an 710071, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0001-5611-1987","authenticated-orcid":false,"given":"Jicheng","family":"Pan","sequence":"additional","affiliation":[{"name":"Guangzhou Institute of Technology, Xidian University, Xi\u2019an 710071, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tianling","family":"Zhang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Antennas and Microwave Technology, Xidian University, Xi\u2019an 710071, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2024,11,26]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"600","DOI":"10.1109\/TAP.2002.1011225","article-title":"A novel smart antenna system implementation for broad-band wireless communications","volume":"50","author":"Jeon","year":"2002","journal-title":"IEEE Trans. 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