Optimal Impedance Matching for UHF RFID Chip

被引：2
作者：
Barbot, Nicolas [1 ]
Prodan, Ionela [1 ]
机构：
[1] Univ Grenoble Alpes, Grenoble INP, LCIS, F-26000 Valence, France
来源：
2023 IEEE INTERNATIONAL CONFERENCE ON RFID, RFID | 2023年
关键词：
Delta RCS; Impedance matching; read range; RFID; DIFFERENTIAL RCS; ANTENNAS; DESIGN;
D O I：
10.1109/RFID58307.2023.10178515
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
This paper shows that the classical conjugate impedance matching used in the UHF RFID is not optimal anymore with new chips. Two new approaches are introduced to realize the impedance matching between a UHF chip and its antenna. The first method allows one to maximize the delta Radar Cross-Section (RCS) of any tag and corresponds to the optimal matching for semi-passive tags. This matching is only function of the two impedance states of the chip. The second method allows one to maximize the read range of any passive tag. The principle relies on finding the optimal trade-off between the received power by the tag and modulated power sent to the reader. This matching is function of the tag sensitivity and states, and the transmitted power and sensitivity of the reader. Compared to classical conjugate impedance matching, we show that these new approaches can increase the read range by 22% and 8% for a semi-passive tag based on Monza X8-K Dura chip and a passive tag based on Monza R6-P chip, respectively.
引用
收藏
页码：96 / 101
页数：6
相关论文
共 17 条
[1]   CasADi: a software framework for nonlinear optimization and optimal control [J].
Andersson, Joel A. E. ;
Gillis, Joris ;
Horn, Greg ;
Rawlings, James B. ;
Diehl, Moritz .
MATHEMATICAL PROGRAMMING COMPUTATION, 2019, 11 (01) :1-36
[2]   Differential RCS of Modulated Tag [J].
Barbot, Nicolas ;
Rance, Olivier ;
Perret, Etienne .
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2021, 69 (09) :6128-6133
[3]   Classical RFID Versus Chipless RFID Read Range: Is Linearity a Friend or a Foe? [J].
Barbot, Nicolas ;
Rance, Olivier ;
Perret, Etienne .
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2021, 69 (09) :4199-4208
[4]   Broadband RFID tag antenna with quasi-isotropic radiation pattern [J].
Cho, C ;
Choo, H ;
Park, I .
ELECTRONICS LETTERS, 2005, 41 (20) :1091-1092
[5]  
Choo J, 2009, 2009 EUROPEAN MICROWAVE CONFERENCE, VOLS 1-3, P5
[6]  
Deavours DD, 2009, IEEE RFID: 2009 IEEE INTERNATIONAL CONFERENCE ON RFID, P275
[7]  
github, RFID CHIP MATCH
[8]  
Green R. B., 1963, The general theory of antenna scattering
[9]   The art of UHF RFID antenna design: Impedance-matching and size-reduction techniques [J].
Marrocco, Gaetano .
IEEE ANTENNAS AND PROPAGATION MAGAZINE, 2008, 50 (01) :66-79
[10]   RFID antennas for the UHF remote monitoring of human subjects [J].
Marrocco, Gaetano .
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2007, 55 (06) :1862-1870
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