{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T15:41:11Z","timestamp":1760110871299,"version":"build-2065373602"},"reference-count":29,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2024,6,13]],"date-time":"2024-06-13T00:00:00Z","timestamp":1718236800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Greece and the European Union in the context of the project \u201cNational Research Infrastructure on nanotechnology, advanced materials and micro\/nanoelectronics\u201c","award":["MIS 5002772","T1EDK-00329"],"award-info":[{"award-number":["MIS 5002772","T1EDK-00329"]}]},{"name":"RESEARCH\u2014CREATE\u2014INNOVATE under the Operational Programme \u201cCompetitiveness, Entrepreneurship and Innovation\u201d","award":["MIS 5002772","T1EDK-00329"],"award-info":[{"award-number":["MIS 5002772","T1EDK-00329"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Computation"],"abstract":"<jats:p>A configurable design of a microstrip square spiral RFID tag antenna, for a wide range of microwave frequencies in the S- and C-band, is presented. The design is parameterized in dimensions, and hence changing the design frequency (or frequencies) is easy, by changing only an initial value for the spiral geometry. A tag specimen was fabricated using a Cu electroplating technique according to the design for frequencies of interest in the areas of 2.4 and 5.8 GHz. The substrate material is 320 \u03bcm high-resistivity Si and the bridge dielectric is 15 \u03bcm polyimide PI2525. The steps of the microfabrication process involve metallic structure pattern transfer techniques with optical UV lithography procedures. The reflection coefficient and antenna gain of the specimen were measured inside an anechoic enclosure using a vector network analyzer (VNA) and a TEM horn test antenna over a frequency range of up to 6 GHz. Simulated and measured results, exhibiting reasonable agreement, are presented and discussed.<\/jats:p>","DOI":"10.3390\/computation12060122","type":"journal-article","created":{"date-parts":[[2024,6,13]],"date-time":"2024-06-13T10:41:03Z","timestamp":1718275263000},"page":"122","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Design, Fabrication and Testing of a Multifrequency Microstrip RFID Tag Antenna on Si"],"prefix":"10.3390","volume":"12","author":[{"given":"Timothea","family":"Korfiati","sequence":"first","affiliation":[{"name":"Telecommunications and Signal Processing, Informatics and Telecommunications Department, National and Kapodistrian University of Athens, Panepistimioupolis, 15784 Athens, Greece"}]},{"given":"Christos N.","family":"Vazouras","sequence":"additional","affiliation":[{"name":"Division of Battle Systems, Naval Operations, Sea Studies, Navigation, Electronics and Telecommunications, Hellenic Naval Academy, Hadjikyriakouave, 18539 Piraeus, Greece"}]},{"given":"Christos","family":"Bolakis","sequence":"additional","affiliation":[{"name":"Division of Battle Systems, Naval Operations, Sea Studies, Navigation, Electronics and Telecommunications, Hellenic Naval Academy, Hadjikyriakouave, 18539 Piraeus, Greece"}]},{"given":"Antonis","family":"Stavrinidis","sequence":"additional","affiliation":[{"name":"Institute of Electronic Structures and Lasers (IESL), Foundation for Research and Technology Hellas (FORTH), 70013 Heraklion, Greece"}]},{"given":"Giorgos","family":"Stavrinidis","sequence":"additional","affiliation":[{"name":"Institute of Electronic Structures and Lasers (IESL), Foundation for Research and Technology Hellas (FORTH), 70013 Heraklion, Greece"}]},{"given":"Aggeliki","family":"Arapogianni","sequence":"additional","affiliation":[{"name":"Telecommunications and Signal Processing, Informatics and Telecommunications Department, National and Kapodistrian University of Athens, Panepistimioupolis, 15784 Athens, Greece"}]}],"member":"1968","published-online":{"date-parts":[[2024,6,13]]},"reference":[{"doi-asserted-by":"crossref","unstructured":"Khalifeh, A., and Khalid, A. 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