{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T14:42:14Z","timestamp":1777646534088,"version":"3.51.4"},"reference-count":21,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2022,2,28]],"date-time":"2022-02-28T00:00:00Z","timestamp":1646006400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>A frequency selective surface for spatial filtering in the standardized Ultra-Wide Band (UWB) frequency range is proposed. A very large stop-band of 1.75\u201315.44 GHz has been obtained, with good polarization insensitivity and an angular stability of more than 60\u2218 and more than 50\u2218 in TE and TM incidence, respectively. Circuit models have been devised. The structure has been assessed by electromagnetic simulation and implemented on an FR4 substrate of 1.6 mm thickness, with an edge of the square-shaped unit cell of 15 mm. Tests in an anechoic chamber demonstrated good matching between simulation and experimental results and proper operation of the device.<\/jats:p>","DOI":"10.3390\/s22051896","type":"journal-article","created":{"date-parts":[[2022,2,28]],"date-time":"2022-02-28T20:11:57Z","timestamp":1646079117000},"page":"1896","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":33,"title":["Frequency Selective Surface for Ultra-Wide Band Filtering and Shielding"],"prefix":"10.3390","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1821-4977","authenticated-orcid":false,"given":"Aldo","family":"De Sabata","sequence":"first","affiliation":[{"name":"Department of Measurements and Optical Electronics, Politehnica University Timisoara, 300006 Timisoara, Romania"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0946-9561","authenticated-orcid":false,"given":"Ladislau","family":"Matekovits","sequence":"additional","affiliation":[{"name":"Department of Measurements and Optical Electronics, Politehnica University Timisoara, 300006 Timisoara, Romania"},{"name":"Department of Electronics and Telecommunications, Politecnico di Torino, 10129 Turin, Italy"},{"name":"Istituto di Elettronica e di Ingegneria dell\u2019Informazione e delle Telecomunicazioni, National Research Council, 10129 Turin, Italy"}]},{"given":"Adrian","family":"Buta","sequence":"additional","affiliation":[{"name":"Department of Measurements and Optical Electronics, Politehnica University Timisoara, 300006 Timisoara, Romania"}]},{"given":"Gianluca","family":"Dassano","sequence":"additional","affiliation":[{"name":"Department of Electronics and Telecommunications, Politecnico di Torino, 10129 Turin, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8699-1575","authenticated-orcid":false,"given":"Andrei","family":"Silaghi","sequence":"additional","affiliation":[{"name":"Department of Measurements and Optical Electronics, Politehnica University Timisoara, 300006 Timisoara, Romania"}]}],"member":"1968","published-online":{"date-parts":[[2022,2,28]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Munk, B.A. (2000). 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