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Content Provider | IET Digital Library |
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Author | Kubina, B. Romeu, J. Mandel, C. Schüßler, M. Jakoby, R. |
Abstract | A novel passive wireless temperature sensor is presented, which aims at operating in harsh environments. For this purpose, the tag is designed quasi-chipless and it uses a harmonic radar sensing principle: it combines the backscattering on the first harmonic of the transmitted frequency with frequency-position encoding of the measured value. The harmonic radar approach brings significant advantages for the wireless readout, since it isolates the undesired radar clutter from the useful tag signal. The tag signal carries the desired temperature information encoded in the position of a resonance transmission peak. The tag is built up planar and consists of two patch antennas, a temperature-dependent bandpass filter and a diode-based harmonic generator. It works at 1.59 GHz and backscatters at 3.18 GHz. Wireless indoor measurements have proven the concept. The sensor has shown a temperature sensitivity of 1.2 MHz/K in the range of 22–109 °C. |
Starting Page | 86 |
Ending Page | 88 |
Page Count | 3 |
ISSN | 00135194 |
Volume Number | 50 |
e-ISSN | 1350911X |
Issue Number | Issue 2, Jan (2014) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/el/50/2 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/el.2013.3061 |
Journal | Electronics Letters |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | Backscattering Digital Readout Electromagnetic Wave Scattering Frequency 1.59 GHz Frequency 3.18 GHz Frequency Position Encoding Frequency Transmission Harmonic Radar Sensing Principle Harmonics Harsh Environment Microstrip Antenna Passive Quasi Chipless Wireless Temperature Sensor Patch Antenna Radar Antenna Radar Clutter Radar Equipment Radar Signal Processing Radio Wave Propagation Resonance Transmission Peak Sensing And Detecting Device Sensing Device And Transducers Single Antenna System And Application Tag Signal Temperature 22 DegC to 109 DegC Temperature Information Encoding Temperature Measurement Temperature Sonsor Thermal Variables Measurement Wireless Indoor Measurement Wireless Readout Wireless Sensor Network |
Content Type | Text |
Resource Type | Article |
Subject | Electrical and Electronic Engineering |
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