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A Paper-Based Screen Printed HF RFID Reader Antenna System

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Publication Details

Author list: Andersson, Henrik;Li, Xiaotian;Sidén, Johan

Place: 445 Hoes Lane Piscataway, NJ 08854, USA

Publication year: 2018

ISSN: 2469-729X

DOI: http://dx.doi.org/10.1109/JRFID.2018.2869494

URL: https://ieeexplore.ieee.org/document/8458180/


Abstract

Screen printing is a stencil process where conductive inks are patterned onto substrates through a fine mesh of threads. Nowadays, screen printing can be used to print RFID antenna structures onto flexible and ultra-low-cost substrates such as pa-per. In this manuscript, we present an HF RFID reader antenna system, operating at 13.56 MHz, using screen printed Ag particle ink as conductor and using HP photo paper as substrate. The proposed antenna system comprises four loop antenna elements, matched to 50 O, and one I2C addressed SP4T multiplexer circuitry, controlled through an exterior embedded system. The geometries, designs and characterizations of the antenna system are described in the manuscript in details. Measurement results show that the antenna system has low power reflections and a suitable Q factor. It has a maximum 11.1 cm RFID tag read range at an antenna system input power of 33 dBm. 2D RFID tag positioning can be enabled by utilizing the RFID tag interrogation zones formed by the four loop antenna elements. In addition, a parametric study is carried out to investigate the effect of loop antenna element DC resistance on the antenna element performance. It can be concluded that the proposed method can be used to create low-cost and large-area HF RFID reader antenna systems.


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Last updated on 2018-13-09 at 05:01