{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,11]],"date-time":"2026-02-11T16:44:28Z","timestamp":1770828268881,"version":"3.50.1"},"reference-count":24,"publisher":"Wiley","license":[{"start":{"date-parts":[[2022,7,22]],"date-time":"2022-07-22T00:00:00Z","timestamp":1658448000000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Shanghai Public Health System Construction","award":["GWV-10.1-XK05"],"award-info":[{"award-number":["GWV-10.1-XK05"]}]},{"name":"Shanghai Public Health System Construction","award":["E1-2602-21-201006-1"],"award-info":[{"award-number":["E1-2602-21-201006-1"]}]},{"name":"Foundation of Shanghai Intelligent Medical Devices and Active Health Collaborative Innovation Center","award":["GWV-10.1-XK05"],"award-info":[{"award-number":["GWV-10.1-XK05"]}]},{"name":"Foundation of Shanghai Intelligent Medical Devices and Active Health Collaborative Innovation Center","award":["E1-2602-21-201006-1"],"award-info":[{"award-number":["E1-2602-21-201006-1"]}]},{"name":"Shanghai High Level University Construction Project","award":["GWV-10.1-XK05"],"award-info":[{"award-number":["GWV-10.1-XK05"]}]},{"name":"Shanghai High Level University Construction Project","award":["E1-2602-21-201006-1"],"award-info":[{"award-number":["E1-2602-21-201006-1"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Sensors"],"published-print":{"date-parts":[[2022,7,22]]},"abstract":"<jats:p>Nowadays, fabric-based antennas, resonators, and sensors are attracting significant attention due to their excellent comfortability and flexibility compared with the rigid commercial printed circuit boards (PCBs). Both the dielectric constant (<jats:inline-formula>\n                     <a:math xmlns:a=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M1\">\n                        <a:msub>\n                           <a:mrow>\n                              <a:mi>\u03b5<\/a:mi>\n                           <\/a:mrow>\n                           <a:mrow>\n                              <a:mi>r<\/a:mi>\n                           <\/a:mrow>\n                        <\/a:msub>\n                     <\/a:math>\n                  <\/jats:inline-formula>) and dielectric loss tangent (<jats:inline-formula>\n                     <c:math xmlns:c=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M2\">\n                        <c:mi mathvariant=\"normal\">tan<\/c:mi>\n                        <c:mi>\u03b4<\/c:mi>\n                     <\/c:math>\n                  <\/jats:inline-formula>) of substrate materials have a great influence on their frequency response characteristics. However, the effect of dielectric loss is usually ignored, since traditional radio frequency (RF) devices are fabricated on commercial PCBs with much lower <jats:inline-formula>\n                     <f:math xmlns:f=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M3\">\n                        <f:mi mathvariant=\"normal\">tan<\/f:mi>\n                        <f:mi>\u03b4<\/f:mi>\n                     <\/f:math>\n                  <\/jats:inline-formula>. As the differences of dielectric loss vary widely with different fabric materials, it is of great significance to explore the influence of dielectric loss on the frequency response characteristics. Therefore, this paper systematically studied the influence of substrate properties on RF performance of microstrip multiresonator. Firstly, the models of microstrip multiresonators with different <jats:inline-formula>\n                     <i:math xmlns:i=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M4\">\n                        <i:msub>\n                           <i:mrow>\n                              <i:mi>\u03b5<\/i:mi>\n                           <\/i:mrow>\n                           <i:mrow>\n                              <i:mi>r<\/i:mi>\n                           <\/i:mrow>\n                        <\/i:msub>\n                     <\/i:math>\n                  <\/jats:inline-formula> and <jats:inline-formula>\n                     <k:math xmlns:k=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M5\">\n                        <k:mi mathvariant=\"normal\">tan<\/k:mi>\n                        <k:mi>\u03b4<\/k:mi>\n                     <\/k:math>\n                  <\/jats:inline-formula> were created by HFSS simulation. By parametrically sweeping, it showed that the <jats:inline-formula>\n                     <n:math xmlns:n=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M6\">\n                        <n:mi mathvariant=\"normal\">tan<\/n:mi>\n                        <n:mi>\u03b4<\/n:mi>\n                     <\/n:math>\n                  <\/jats:inline-formula> was the key factor for the notch depth. And the larger the <jats:inline-formula>\n                     <q:math xmlns:q=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M7\">\n                        <q:mi mathvariant=\"normal\">tan<\/q:mi>\n                        <q:mi>\u03b4<\/q:mi>\n                     <\/q:math>\n                  <\/jats:inline-formula>, the bigger the electromagnetic loss of the material, resulting in a smaller notch depth of the resonator. Then, three representative materials with different orders of magnitude of <jats:inline-formula>\n                     <t:math xmlns:t=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M8\">\n                        <t:mi mathvariant=\"normal\">tan<\/t:mi>\n                        <t:mi>\u03b4<\/t:mi>\n                     <\/t:math>\n                  <\/jats:inline-formula> (AD-450: 0.002, FR-4: 0.015, and denim fabric: 0.114) were chosen to verify the simulation. The results showed that the common fabric-based resonator has poor RF characteristics for their big dielectric loss compared with those of commercial PCBs. This study is of great significance for designing wearable electronic devices with flexible substrate materials with large dielectric loss.<\/jats:p>","DOI":"10.1155\/2022\/3866692","type":"journal-article","created":{"date-parts":[[2022,7,22]],"date-time":"2022-07-22T21:35:09Z","timestamp":1658525709000},"page":"1-9","source":"Crossref","is-referenced-by-count":7,"title":["Influence of Dielectric Loss on RF Performance of Microstrip Multi-Resonant Circuits"],"prefix":"10.1155","volume":"2022","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8374-4053","authenticated-orcid":true,"given":"Huating","family":"Tu","sequence":"first","affiliation":[{"name":"College of Medical Instruments, Shanghai University of Medicine & Health Sciences, Shanghai 201318, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hong","family":"Hong","sequence":"additional","affiliation":[{"name":"School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yaya","family":"Zhang","sequence":"additional","affiliation":[{"name":"Shanghai Collaborative Innovation Center for High Performance Fiber Composites, Donghua University, Shanghai 201620, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Liang","family":"Zhou","sequence":"additional","affiliation":[{"name":"College of Medical Instruments, Shanghai University of Medicine & Health Sciences, Shanghai 201318, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3172-7507","authenticated-orcid":true,"given":"Xiaoou","family":"Li","sequence":"additional","affiliation":[{"name":"College of Medical Instruments, Shanghai University of Medicine & Health Sciences, Shanghai 201318, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","reference":[{"key":"1","article-title":"Smart textiles for multimodal wearable sensing using highly stretchable multiplexed optical fiber system","volume":"10, article 13867","author":"A. 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Loss","year":"2015"},{"key":"24","doi-asserted-by":"publisher","DOI":"10.1109\/LAWP.2016.2570807"}],"container-title":["Journal of Sensors"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/downloads.hindawi.com\/journals\/js\/2022\/3866692.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/js\/2022\/3866692.xml","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/js\/2022\/3866692.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,7,22]],"date-time":"2022-07-22T21:35:26Z","timestamp":1658525726000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.hindawi.com\/journals\/js\/2022\/3866692\/"}},"subtitle":[],"editor":[{"given":"Wen-Ming","family":"Chen","sequence":"additional","affiliation":[],"role":[{"role":"editor","vocabulary":"crossref"}]}],"short-title":[],"issued":{"date-parts":[[2022,7,22]]},"references-count":24,"alternative-id":["3866692","3866692"],"URL":"https:\/\/doi.org\/10.1155\/2022\/3866692","relation":{},"ISSN":["1687-7268","1687-725X"],"issn-type":[{"value":"1687-7268","type":"electronic"},{"value":"1687-725X","type":"print"}],"subject":[],"published":{"date-parts":[[2022,7,22]]}}}