Design and Testing of Frequency-doubling Microstrip antenna Sensor for Wireless Monitoring of High Temperatures

Design and Testing of Frequency-doubling Microstrip antenna Sensor for Wireless Monitoring of High Temperatures | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Design and Testing of Frequency-doubling Microstrip antenna Sensor for Wireless Monitoring of High Temperatures Qiulin Tan, Helei Dong, Liangjie Guo, Chengwei Zhen, Tenteng Dong, and 4 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7091228/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 25 Mar, 2026 Read the published version in Microsystems & Nanoengineering → Version 1 posted 9 You are reading this latest preprint version Abstract In order to solve the shortcomings of wireless passive sensors based on label chips for signal transmission, which cannot withstand high temperatures, and the problem of the short transmission distance of wireless passive sensors without chips, a wireless passive high-temperature frequency-doubling microstrip antenna sensor based on a high-temperature-resistant Schottky diode is proposed. The sensor utilizes the characteristic of the resonant frequency of the microstrip antenna changing with temperature. The high-temperature-resistant platinum sensitive structure integrated on alumina ceramic adapts to temperature measurement in harsh environments such as high temperatures, oxidation, and corrosion.. A high-temperature-resistant Schottky diode was designed, and on this basis, a high-temperature-resistant frequency doubling circuit was designed and implemented. Through this circuit, the network analyzer can transmit a fundamental frequency signal and receive a modulated double frequency signal, while limiting ambient noise to the fundamental frequency band, eliminating interference and significantly improving the signal-to-noise ratio, thereby enabling wireless transmission. In addition, a high-temperature-resistant, miniaturized broadband coplanar waveguide antenna was designed to replace the traditional horn antenna as the interrogation antenna, which realized the wireless transmission of sensor signals. A high-temperature testing system was set up to test the sensor performance in the range of 15-800°C. The results showed that the maximum transmission distance of the sensor is 20cm, and the transmission performance is best at 10cm away from the interrogation antenna. It can accurately characterize the temperature during the heating process, with a sensitivity of up to 181kHz/°C and a frequency error of no more than 0.2%. Physical sciences/Nanoscience and technology/Nanoscale devices/Sensors Physical sciences/Nanoscience and technology/Nanoscale materials/Structural properties Physical sciences/Engineering/Electrical and electronic engineering Full Text Additional Declarations There is no conflict of interest Supplementary Files SupplementaryMaterial.pdf Fabrication and Testing of High-temperature Schottky Diodes Cite Share Download PDF Status: Published Journal Publication published 25 Mar, 2026 Read the published version in Microsystems & Nanoengineering → Version 1 posted Editorial decision: revise 10 Nov, 2025 Review # 2 received at journal 03 Nov, 2025 Reviewer # 2 agreed at journal 27 Oct, 2025 Review # 1 received at journal 24 Oct, 2025 Reviewer # 1 agreed at journal 15 Oct, 2025 Reviewers invited by journal 15 Oct, 2025 Submission checks completed at journal 13 Jul, 2025 Editor assigned by journal 10 Jul, 2025 First submitted to journal 10 Jul, 2025 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-7091228","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":530008415,"identity":"71dc1d65-94e0-41aa-a3f9-35cd6e6d822a","order_by":0,"name":"Qiulin 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