{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,27]],"date-time":"2026-03-27T16:12:16Z","timestamp":1774627936952,"version":"3.50.1"},"reference-count":20,"publisher":"MDPI AG","issue":"21","license":[{"start":{"date-parts":[[2019,11,5]],"date-time":"2019-11-05T00:00:00Z","timestamp":1572912000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100000181","name":"Air Force Office of Scientific Research","doi-asserted-by":"publisher","award":["LRIR 16RXCOR319"],"award-info":[{"award-number":["LRIR 16RXCOR319"]}],"id":[{"id":"10.13039\/100000181","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Filtering of electromagnetic signals is key for improved signal to noise ratios for a broad class of devices. However, maintaining filter performance in systems undergoing large changes in shape can be challenging, due to the interdependency between element geometry, orientation and lattice spacing. To address this challenge, an origami-based, reconfigurable spatial X-band filter with consistent frequency filtering is presented. Direct-write additive manufacturing is used to print metallic Archimedean spiral elements in a lattice on the substrate. Elements in the lattice couple to one another and this results in a frequency selective surface acting as a stop-band filter at a target frequency. The lattice is designed to maintain the filtered frequency through multiple fold angles. The combined design, modeling, fabrication, and experimental characterization results of this study provide a set of guidelines for future design of physically reconfigurable filters exhibiting sustained performance.<\/jats:p>","DOI":"10.3390\/s19214808","type":"journal-article","created":{"date-parts":[[2019,11,7]],"date-time":"2019-11-07T02:48:31Z","timestamp":1573094911000},"page":"4808","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["Origami-Inspired Frequency Selective Surface with Fixed Frequency Response under Folding"],"prefix":"10.3390","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0099-2858","authenticated-orcid":false,"given":"Deanna","family":"Sessions","sequence":"first","affiliation":[{"name":"Department of Electrical Engineering, Pennsylvania State University, University Park, PA 16801, USA"}]},{"given":"Alexander","family":"Cook","sequence":"additional","affiliation":[{"name":"NextFlex, San Jose, CA 95131, USA"}]},{"given":"Kazuko","family":"Fuchi","sequence":"additional","affiliation":[{"name":"University of Dayton Research Institute, Dayton, OH 45469, USA"},{"name":"Aerospace Systems Directorate, Air Force Research Laboratory, WPAFB, OH 45433, USA"}]},{"given":"Andrew","family":"Gillman","sequence":"additional","affiliation":[{"name":"Materials and Manufacturing Directorate, Air Force Research Laboratory, WPAFB, OH 45433, USA"}]},{"given":"Gregory","family":"Huff","sequence":"additional","affiliation":[{"name":"Department of Electrical Engineering, Pennsylvania State University, University Park, PA 16801, USA"}]},{"given":"Philip","family":"Buskohl","sequence":"additional","affiliation":[{"name":"Materials and Manufacturing Directorate, Air Force Research Laboratory, WPAFB, OH 45433, USA"}]}],"member":"1968","published-online":{"date-parts":[[2019,11,5]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"473","DOI":"10.1109\/LAWP.2012.2196489","article-title":"Origami Tunable Frequency Selective Surfaces","volume":"11","author":"Fuchi","year":"2012","journal-title":"IEEE Antennas Wirel. 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