Theory and measurement of backscattering from RFID tags
| Autor: | K.V.S. Rao, Pavel Nikitin |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Engineering
Radar cross-section Anechoic chamber Backscatter business.industry Computer Science::Information Retrieval Computer Science::Computation and Language (Computational Linguistics and Natural Language and Speech Processing) Condensed Matter Physics Network analyzer (electrical) Signal Ultra high frequency Electronic engineering Return loss Electrical and Electronic Engineering Antenna (radio) business |
| Zdroj: | IEEE Antennas and Propagation Magazine. 48:212-218 |
| ISSN: | 1558-4143 1045-9243 |
| DOI: | 10.1109/map.2006.323323 |
| Popis: | This paper presents a method for measuring signal backscattering from RFID tags, and for calculating a tag's radar cross section (RCS). We derive a theoretical formula for the RCS of an RFID tag with a minimum-scattering antenna. We describe an experimental measurement technique, which involves using a network analyzer connected to an anechoic chamber with and without the tag. The return loss measured in this way allows us to calculate the backscattered power and to find the tag's RCS. Measurements were performed using an RFID tag operating in the UHF band. To determine whether the tag was turned on, we used an RFID tag tester. The tag's RCS was also calculated theoretically, using electromagnetic simulation software. The theoretical results were found to be in good agreement with experimental data |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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