{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,5]],"date-time":"2026-06-05T05:28:36Z","timestamp":1780637316913,"version":"3.54.1"},"reference-count":45,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2022,5,27]],"date-time":"2022-05-27T00:00:00Z","timestamp":1653609600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Sentinel North program of Universit\u00e9 Laval"},{"name":"Canada First Research Excellence Fund"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>A flexible sinusoidal-shaped antenna sensor is introduced in this work, which is a modified half-wave dipole that can be used for strain sensing applications. The presented antenna is an improved extension of the previously introduced antenna sensor for respiration monitoring. The electrical and radiative characteristics of the sinusoidal antenna and the effects of the geometrical factors are studied. An approach is provided for designing the antenna, and equations are introduced to estimate the geometrical parameters based on desired electrical specifications. It is shown that the antenna sensor can be designed to have up to 5.5 times more sensitivity compared to the last generation of the antenna sensor previously introduced for respiration monitoring. The conductive polymer material used to fabricate the new antenna makes it more flexible and durable compared to the previous generation of antenna sensors made of glass-based material. Finally, a reference antenna made of copper and an antenna sensor made of the conductive polymer are fabricated, and their electrical characteristics are analyzed in free space and over the body.<\/jats:p>","DOI":"10.3390\/s22114069","type":"journal-article","created":{"date-parts":[[2022,5,31]],"date-time":"2022-05-31T02:30:06Z","timestamp":1653964206000},"page":"4069","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":20,"title":["Wearable Sensor Based on Flexible Sinusoidal Antenna for Strain Sensing Applications"],"prefix":"10.3390","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8146-7926","authenticated-orcid":false,"given":"Mehran","family":"Ahadi","sequence":"first","affiliation":[{"name":"Center for Optics, Photonics and Lasers (COPL), Department of Electrical and Computer Engineering, Universit\u00e9 Laval, Quebec City, QC G1V 0A6, Canada"},{"name":"LABioTRON Bioengineering Research Laboratory, Department of Electrical and Computer Engineering, and Research Centre for Advanced Materials (CERMA), Universit\u00e9 Laval, Quebec City, QC G1V 0A6, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1830-9730","authenticated-orcid":false,"given":"Mourad","family":"Roudjane","sequence":"additional","affiliation":[{"name":"Center for Optics, Photonics and Lasers (COPL), Department of Physics, Universit\u00e9 Laval, Quebec City, QC G1V 0A6, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marc-Andr\u00e9","family":"Dugas","sequence":"additional","affiliation":[{"name":"D\u00e9partement de P\u00e9diatrie, Facult\u00e9 de M\u00e9decine, Centre M\u00e9re-Enfant Soleil du CHU de Qu\u00e9bec, Universit\u00e9 Laval, and Centre de Recherche du CHU de Qu\u00e9bec, Quebec City, QC G1V 4G2, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1766-7528","authenticated-orcid":false,"given":"Amine","family":"Miled","sequence":"additional","affiliation":[{"name":"LABioTRON Bioengineering Research Laboratory, Department of Electrical and Computer Engineering, and Research Centre for Advanced Materials (CERMA), Universit\u00e9 Laval, Quebec City, QC G1V 0A6, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Youn\u00e8s","family":"Messaddeq","sequence":"additional","affiliation":[{"name":"Center for Optics, Photonics and Lasers (COPL), Department of Physics, Universit\u00e9 Laval, Quebec City, QC G1V 0A6, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,5,27]]},"reference":[{"key":"ref_1","unstructured":"Kraus, J.D. 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