{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T02:33:55Z","timestamp":1760150035691,"version":"build-2065373602"},"reference-count":35,"publisher":"MDPI AG","issue":"19","license":[{"start":{"date-parts":[[2023,10,9]],"date-time":"2023-10-09T00:00:00Z","timestamp":1696809600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Italian Space Agency Project \u00abMETAMEMS\u00bb","award":["ASI n. 2019-12-U.0","F84118000380005"],"award-info":[{"award-number":["ASI n. 2019-12-U.0","F84118000380005"]}]},{"name":"Codice Unico di Progetto","award":["ASI n. 2019-12-U.0","F84118000380005"],"award-info":[{"award-number":["ASI n. 2019-12-U.0","F84118000380005"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Triangular resonators re-shaped into Sierpinski geometry and U-shaped resonators were designed, linking them with single-pole-double-through (SPDT) RF MEMS switches to provide frequency tuning for potential applications in the K-Band. Prototypes of band-stop narrowband filters working around 20 GHz and 26 GHz, interesting for RADAR and satellite communications, were studied in a coplanar waveguide (CPW) configuration, and the tuning was obtained by switching between two paths of the devices loaded with different resonators. As a result, dual-band operation or fine-tuning could be obtained depending on the choice of the resonator, acting as a building block. The studied filters belong to the more general group of devices inspired by a metamaterial design.<\/jats:p>","DOI":"10.3390\/s23198339","type":"journal-article","created":{"date-parts":[[2023,10,9]],"date-time":"2023-10-09T12:51:04Z","timestamp":1696855864000},"page":"8339","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["MEMS-Switched Triangular and U-Shaped Band-Stop Resonators for K-Band Operation"],"prefix":"10.3390","volume":"23","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4815-9470","authenticated-orcid":false,"given":"Romolo","family":"Marcelli","sequence":"first","affiliation":[{"name":"Institute for Microelectronics and Microsystems (CNR-IMM), 00133 Roma, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3850-2685","authenticated-orcid":false,"given":"Giovanni Maria","family":"Sardi","sequence":"additional","affiliation":[{"name":"Institute for Microelectronics and Microsystems (CNR-IMM), 00133 Roma, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Emanuela","family":"Proietti","sequence":"additional","affiliation":[{"name":"Institute for Microelectronics and Microsystems (CNR-IMM), 00133 Roma, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Giovanni","family":"Capoccia","sequence":"additional","affiliation":[{"name":"Institute for Microelectronics and Microsystems (CNR-IMM), 00133 Roma, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6462-4814","authenticated-orcid":false,"given":"Jacopo","family":"Iannacci","sequence":"additional","affiliation":[{"name":"Fondazione Bruno Kessler, Povo, 38123 Trento, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7611-6435","authenticated-orcid":false,"given":"Girolamo","family":"Tagliapietra","sequence":"additional","affiliation":[{"name":"Fondazione Bruno Kessler, Povo, 38123 Trento, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6009-0103","authenticated-orcid":false,"given":"Flavio","family":"Giacomozzi","sequence":"additional","affiliation":[{"name":"Fondazione Bruno Kessler, Povo, 38123 Trento, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,10,9]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"343","DOI":"10.1109\/JPROC.2018.2806218","article-title":"Modern Small Satellites-Changing the Economics of Space","volume":"106","author":"Sweeting","year":"2018","journal-title":"Proc. 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