{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,22]],"date-time":"2025-11-22T17:02:00Z","timestamp":1763830920433,"version":"build-2065373602"},"reference-count":19,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2018,7,13]],"date-time":"2018-07-13T00:00:00Z","timestamp":1531440000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003725","name":"National Research Foundation of Korea","doi-asserted-by":"publisher","award":["NRF-2018R1A2B6001680"],"award-info":[{"award-number":["NRF-2018R1A2B6001680"]}],"id":[{"id":"10.13039\/501100003725","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Functional Districts of the Science Belt Support Program","award":["2017K000488"],"award-info":[{"award-number":["2017K000488"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>In this research, a security paper based on frequency selective structure technologies was designed and fabricated using selective wave reflection characteristics to prevent the offline leakage of confidential documents. Document leakage detection systems using security papers detect security papers using transceiving antenna gates. For the application of such systems, the structure must be designed with excellent reflection performance and stability at the angle of incidence. For this purpose, a loop and patch-type frequency selective structure based on a four-legged element structure was designed to have X-band frequency reflection characteristics. This design was based on optimized variables and was realized through the screen printing method using silver ink on A4 paper. It was verified that both the design and simulation results matched well. To verify its actual applicability, a detector module operable at 10 GHz was manufactured to observe both the security paper detection range in relation to distance with a signal strength of \u221210 dBm and the detection area in relation to the number of times that the security paper had been folded.<\/jats:p>","DOI":"10.3390\/s18072263","type":"journal-article","created":{"date-parts":[[2018,7,16]],"date-time":"2018-07-16T04:05:33Z","timestamp":1531713933000},"page":"2263","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Design of Security Paper with Selective Frequency Reflection Characteristics"],"prefix":"10.3390","volume":"18","author":[{"given":"Sang-Hwa","family":"Lee","sequence":"first","affiliation":[{"name":"Department of Information and Communication Engineering, Kongju National University, Gongju 31080, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Min-Sik","family":"Kim","sequence":"additional","affiliation":[{"name":"National Security Research Institute, Daejeon 34188, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jong-Kyu","family":"Kim","sequence":"additional","affiliation":[{"name":"National Security Research Institute, Daejeon 34188, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ic-Pyo","family":"Hong","sequence":"additional","affiliation":[{"name":"Department of Information and Communication Engineering, Kongju National University, Gongju 31080, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2018,7,13]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Mikkilineni, A.K., Ali, G.N., Chiang, P.J., Chiu, G.T.C., Allebach, J.P., and Delp, E.J. (2004, January 18\u201322). Signature-Embedding in Printed Documents for Security and Forensic Applications. Proceedings of the SPIE 5306, Security, Steganography, and Watermarking of Multimedia Contents VI, San Jose, CA, USA.","DOI":"10.1117\/12.531944"},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Mikkilineni, A.K., Chiang, P.J., Ali, G.N., Chiu, G.T.C., Allebach, J.P., and Delp, E.J. (2005, January 21). Printer Identification based on Graylevel Co-occurrence features for security and forensic applications. Proceedings of the SPIE 5681, Security, Steganography, and Watermarking of Multimedia Contents VII, San Jose, CA, USA.","DOI":"10.1117\/12.593796"},{"key":"ref_3","unstructured":"Kanai, Y., Ohta, Y., and Saitoh, A. (2009). Document Security System. (0,271,839), U.S. Patent."},{"key":"ref_4","unstructured":"Vainstein, K. (2012). Document Security System That Permits External Users to Gain Access to Secured Files. (8,176,334), U.S. Patent."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"346","DOI":"10.1016\/S0304-8853(02)00557-7","article-title":"Magnetic wire fabrication and application","volume":"249","author":"Hasegawa","year":"2002","journal-title":"J. Magn. Magn. Mater."},{"key":"ref_6","unstructured":"Schmitz, C., and Burchard, T. (2002). Safety Document. (6,491,324), U.S. Patent."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"272","DOI":"10.1109\/LMWC.2018.2802718","article-title":"Near-Field Chipless-RFID System with Erasable\/Programmable 40-bit Tags Inkjet Printed on Paper Substrates","volume":"28","author":"Herrojo","year":"2018","journal-title":"IEEE Microw. Wirel. Compon. Lett."},{"key":"ref_8","first-page":"24","article-title":"The State of RFID Applications in Libraries","volume":"25","author":"Singh","year":"2006","journal-title":"Inf. Technol. Libr."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"553","DOI":"10.1590\/2179-10742017v16i2900","article-title":"A Novel Simple Convoluted Geometry to Design Frequency Selective Surfaces for Applications at ISM and UNII Bands","volume":"16","author":"Barros","year":"2017","journal-title":"J. Microw. Optoelectron. Electromagn. Appl."},{"key":"ref_10","first-page":"095307","article-title":"Tunable antenna radome based on graphene frequency selective surface","volume":"7","author":"Qu","year":"2017","journal-title":"Am. Inst. Phys. (AIP) Adv."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"293","DOI":"10.1049\/iet-map.2015.0341","article-title":"U-shaped frequency selective surfaces for single-and dual-band applications together with absorber and sensor configurations","volume":"10","author":"Bakir","year":"2016","journal-title":"IET Microw. Antennas Propag."},{"key":"ref_12","first-page":"027107","article-title":"Optically transparent frequency selective surfaces on flexible thin plastic substrates","volume":"5","author":"Dewani","year":"2015","journal-title":"Am. Inst. Phys. (AIP) Adv."},{"key":"ref_13","doi-asserted-by":"crossref","unstructured":"Chaharmir, M.R., Ethier, J., Lee, D., and Shaker, J. (2016, January 10\u201313). Design of Dual-Band Frequency Selective Surfaces to Block Wi-Fi Using Printable Electronics Technology. Proceedings of the 2016 17th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM), Montreal, QC, Canada.","DOI":"10.1109\/ANTEM.2016.7550238"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"790","DOI":"10.1109\/TAP.2017.2780893","article-title":"Window RF Shielding Film Using Printed FSS","volume":"66","author":"Dewani","year":"2018","journal-title":"IEEE Trans. Antennas Propag."},{"key":"ref_15","unstructured":"Martin, A.N., Barros, F.D., Tourtollet, G.E.P., Auger, P.L., Pistono, E., and Vuong, T.P. (2015, January 7\u201310). Metapaper: A Frequency Selective Surface Wallpaper for the attenuation of Wi-Fi signals. Proceedings of the 45th European Microwave Conference, Paris, France."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"611","DOI":"10.1109\/TEMC.2015.2498398","article-title":"A Low-Profile Paper Substrate-Based Dual-Band FSS for GSM Shielding","volume":"58","author":"Sivasamy","year":"2016","journal-title":"IEEE Trans. Electromagn. Compat."},{"key":"ref_17","first-page":"775","article-title":"Design of Paper-Based Reconfigurable Frequency Selective Surface for Spectrum Control of Indoor Environments","volume":"41","author":"Cho","year":"2016","journal-title":"J. Korea Inst. Commun. Sci."},{"key":"ref_18","unstructured":"Clemens, T.G. (1992). Antenna Structure for an Electronic Article Surveillance System. (5,103,235), U.S. Patent."},{"key":"ref_19","first-page":"960","article-title":"An Overview of Equivalent Circuit Modeling Techniques of Frequency Selective Surfaces and Metasurfaces","volume":"29","author":"Coast","year":"2014","journal-title":"Appl. Comput. Electromagn. Soc. (ACES) J."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/18\/7\/2263\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T15:12:01Z","timestamp":1760195521000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/18\/7\/2263"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018,7,13]]},"references-count":19,"journal-issue":{"issue":"7","published-online":{"date-parts":[[2018,7]]}},"alternative-id":["s18072263"],"URL":"https:\/\/doi.org\/10.3390\/s18072263","relation":{},"ISSN":["1424-8220"],"issn-type":[{"type":"electronic","value":"1424-8220"}],"subject":[],"published":{"date-parts":[[2018,7,13]]}}}