Approach for long-range frequency domain chipless RFID tags towards THz
Conference: Smart SysTech 2016 - European Conference on Smart Objects, Systems and Technologies
07/07/2016 - 07/08/2016 at Duisburg, Germany
Proceedings: Smart SysTech 2016
Pages: 7Language: englishTyp: PDF
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Authors:
Mandel, C.; Kubina, B.; Schuessler, M.; Jakoby, R. (Institute for Microwave Engineering and Photonics, Technische Universität Darmstadt, Darmstadt, Germany)
Boegel, Gerd vom; Meyer, F.; Grabmaier, A. (Transponder Systems and Applications, Fraunhofer Institute for Microelectronic Circuits and Systems (IMS), Duisburg, Germany)
Wiemeler, M.; Kaiser, T. (Institute of Digital Signal Processing, University of Duisburg-Essen, Duisburg, Germany)
Solbach, K. (High Frequency Engineering (HFT), Faculty of Engineering, University of Duisburg-Essen, Duisburg, Germany)
Abstract:
This paper presents an approach of an RFID system, which operates at frequencies of 100 GHz and above. Key issue of the system is an extremely small, chipless, tag, that is based on the “dielectric resonant antenna” (DRA) technology and provides identification as well as sensor capability. The tag uses radio-frequency backscattering techniques to encode and transmit the ID-data or measured values, respectively. The resonance frequency of a single DRA on the tag is determined as a peak in its radar cross section. To encode an ID number, the tag is built from several DRAs with slightly different resonant frequencies. A temperature dependency can be obtained by a temperature dependent permittivity of the DRA. The focus of the presented work is the estimation of the reading distance. Constraints are derived from previous work and typical indoor scenarios. The link budget calculation shows expected ranges of up to 20 meters.