Design and Implementation of a 4-Bit Chipless RFID System
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Name |
Year |
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Zhi-Yao Hong, Yu-Xuan Zhang, and Guo-Xiang Lin |
2017 |
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Keywords |
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backscattering, resonators, radio-frequency identification, radar cross sections |
Conventional RFID tags have a higher cost as compared to the use of bar code. To reduce the cost, eliminating the use of the chip has become a new technology for IoT applications. This technology, namely, chipless RFID, reflects the signal come from a reader, and the backscattering field depicts the data encoded.
In this project, we implement a four-bit chipless RFID system. The frequency band used is 2.0-4.5 GHz. The tag comprises four resonators. We design and fabricate three types of resonators, including a slot type, circular shape, and C shape. The performance of these resonators are evaluated and compared. Moreover, we design and fabricate two wideband monopole antennas that serve as the reader antennas. The bistatic RCS between the reader and the tag is measured, and so is the detection performance.
